Archives for 

seo

New: The MozCast Feature Graph – Tracking Google’s Landscape

Posted by Dr-Pete

Over the last year-and-a-half of tracking Google’s daily “weather”, it’s become painfully clear to me that there’s much more to future-proofing your SEO than just the core algorithm. From Knowledge Graph to In-depth articles, Google is launching new features faster than ever, and pages with nothing but ten blue links will soon be a memory.

So, we started working on a way to track how features change over time, and today I’m happy to announce the launch of the MozCast Feature Graph. It looks a little something like this:

Three tools in one

The Feature Graph is really three tools in one. The top graph shows a 30-day history of four major groups of features: Ads, Local, Knowledge Graph, and Verticals. The legend is color-coded to the bars at the bottom, which show the current density of each feature and the day-over-day change for that feature. So, for example, “Adwords (Top)” in the graph above shows that 77.9% of the queries tracked by MozCast displayed ads at the top the last time we checked them.

The third tool is my favorite, and the one that probably delayed this project the most. I’ve attempted to put some of the power of the raw data into your hands, and we’ve created a mini laboratory to find and preview SERPs.

The SERP mini-lab

Let’s say you’re looking for a SERP that has a Knowledge Graph entry, image results, and shopping results. Just check on the boxes next to those three features. As you add each feature, you’ll see the “Matched Queries” box populate with a list of search terms:

Click on any of those queries, and you’ll be taken to the corresponding Google search (parameterized to match the original capture as closely as possible). For example, if I click on “vespa”, I get the following:

You can see the paid product placements and Knowledge Graph on the right, as well as the image results after the third organic listing. Note that these links are to live SERPs on Google.com – in some cases, the page may be slightly different from the one we visited the night before. This is especially true of AdWords placements, which can vary considerably from visit to visit.

When you select a feature or set of features, you don’t just get sample queries – the 30-day graph at the top changes to match your search:

The lines on the graph now show the trends for each of the individual features you’ve selected. You can mouse over any point for the exact percentage on that day.

Bonus feature: new ads

There’s one feature that works a bit differently than the rest. We’ve started tracking the prevalence of Google’s new AdWords format, which is in large-scale testing but not fully live yet. The “New Ad Format” feature tracks the percentage of ads using the new format across the queries that displayed ads (not the entire query set). Please note that the new ad format is only rolled out for some users, so the search/preview function won’t work properly (you may see the old ads). I’ve added this feature simply to track the roll-out over time.

Some technical notes

The Feature Graph is powered by the MozCast 10K, a set of 10,000 queries across 20 industry categories. Half of the MozCast 10K is delocalized and half is locally targeted (1,000 keywords each to 5 major cities). Local SEO features are measured only from the local data (5,000 total queries). All results are depersonalized.

A few thank-yous

I’d like to thank the inbound engineering team (Casey, Devin, and Shelly) for their help making this a reality, and our design leads, Daan and Derric, for hashing out a few ideas with me. Special thanks to Devin, who had the thankless job of translating my old-school PHP into something Moz-friendly that won’t break 50 times/day.

Have fun with it

The Google SERP Feature Graph is live as of last night. This data has powered quit a few insights and blog posts over the past few months, and I’m excited to release it to the public. My hope is that people will use the tool to surface new SERP combinations and make their own discoveries. Let me know what you find.

Editor note: We had non-launch related outage of Mozcast around 12:30am PST, 12/10/13, if you had errors then. Service has been completely restored at 1:20am PST, and the new features are working. Enjoy.


Sign up for The Moz Top 10, a semimonthly mailer updating you on the top ten hottest pieces of SEO news, tips, and rad links uncovered by the Moz team. Think of it as your exclusive digest of stuff you don’t have time to hunt down but want to read!

Continue reading →

Investing in Non-Measurable Serendipitous Marketing – Whiteboard Friday

Posted by randfish

Sticking to what can be easily measured often seems like the safest route, but avoiding the unknown also prevents some of the happier accidents from taking place. In today’s Whiteboard Friday, Rand explains why it’s important to invest some of your time and resources in non-measurable, serendipitous marketing.

Whiteboard Friday – Investing in Non-Measurable Serendipitous Marketing

For reference, here’s a still of this week’s whiteboard!

Video Transcription

Howdy Moz fans, and welcome to another edition of Whiteboard Friday. This week I want to talk about something that we don’t usually talk about in the inbound marketing world because inbound, of course, is such a hyper-measurable channel, at least most of the investments that we make are very measurable, but I love serendipitous marketing too. That’s investing in serendipity to earn out-sized returns that you might not be able to make. That’s a tough sell for a lot of management, for a lot of executives, for a lot of marketers because we’re so accustomed to this new world of hyper-measurability. But with a couple examples, I’ll illustrate what I mean.

So let’s say we start by maybe you go and you attend an off-topic conference, a conference that isn’t normally in your field, but it was recommended to you by a friend. So you go to that event, and while you are there, you meet a speaker. You happen to run into them, you’re having a great chat together, and that speaker later mentions your product, your company, your business on stage at the event. It turns out that that mention yields two audience members who become clients of yours later and, in fact, not just clients, but big advocates for your business that drive even more future customers.

This is pretty frustrating. From a measurability standpoint, first off, it’s an off-topic event. How do you even know that this interaction is the one that led to them being mentioned? Maybe that speaker would have mentioned your business anyway. Probably not, but maybe. What about these folks? Would those two customers have come to your business regardless? Were they searching for exactly what you offered anyway? Or were they influenced by this? They probably were. Very, very hard to measure. Definitely not the kind of investment that you would normally make in the course of your marketing campaigns, but potentially huge.

I’ll show you another one. Let’s say one day you’re creating a blog post, and you say, “Boy, you know, this topic is a really tough one to tackle with words alone. I’m going to invest in creating some visual assets.” You get to work on them, and you start scrapping them and rebuilding them and rebuilding them. Soon you’ve spent off hours for the better part of a week building just a couple of visual assets that illustrate a tough concept in your field. You go, “Man, that was a huge expenditure of energy. That was a big investment. I’m not sure that’s even going to have any payoff.”

Then a few weeks later those visuals get picked up by some major news outlets. It turns out, and you may not even be able to discover this, but it turns out that the reporters for those websites did a Google image search, and you happened to pop up and you clearly had the best image among the 30 or 40 that they scrolled to before they found it. So, not only are they including those images, they’re also linking back over to your website. Those links don’t just help your site directly, but the news stories themselves, because they’re on high-quality domains and because they’re so relevant, end up ranking for an important search keyword phrase that continues to drive traffic for years to come back to your site.

How would you even know, right? You couldn’t even see that this image had been called by those reporters because it’s in the Google image search cache. You may not even connect that up with the rankings and the traffic that’s sent over. Hopefully, you’ll be able to do that. It’s very hard to say, “Boy, if I were to over-invest and spend a ton more time on visual assets, would I ever get this again? Or is this a one-time type of event?”

The key to all of this serendipitous marketing is that these investments that you’re making up front are hard or impossible to predict or to attribute to the return on investment that you actually earn. A lot of the time it’s actually going to seem unwise. It’s going to seem foolish, even, to make these kinds of investments based on sort of a cost and time investment perspective. Compared to the potential ROI, you just go, “Man, I can’t see it.” Yet, sometimes we do it anyway, and sometimes it has a huge impact. It has those out-sized serendipitous returns.

Now, the way that I like to do this is I’ll give you some tactical stuff. I like to find what’s right here, the intersection of this Venn diagram. Things that I’m passionate about, that includes a topic as well as potentially the medium or the type of investment. So if I absolutely hate going to conferences and events, I wouldn’t do it, even if I think it might be right from other perspectives.

I do particularly love creating visual assets. So I like tinkering around, taking a long time to sort of get my pixels looking the way I want them to look, and even though I don’t create great graphics, as evidenced here, sometimes these can have a return. I like looking at things where I have some skill, at least enough skill to produce something of value. That could mean a presentation at a conference. It could mean a visual asset. It could mean using a social media channel. It could mean a particular type of advertisement. It could mean a crazy idea in the real world. Any of these things.

Then I really like applying empathy as the third point on top of this, looking for things that are something that my audience has the potential to like or enjoy or be interested in. So this conference my be off-topic, but knowing that it was recommended by my friend and that there might be some high-quality people there, I can connect up the empathy and say, “Well, if I’m putting myself in the shoes of these people, I might imagine that some of them will be interested in or need or use my product.”

Likewise, if I’m making this visual asset, I can say, “Well, I know that since this is a tough subject to understand, just explaining it with words alone might not be enough for a lot of people. I bet if I make something visual, that will help it be much better understood. It may not spread far and wide, but at least it’ll help the small audience who does read it.”

That intersection is where I like to make serendipitous investments and where I would recommend that you do too.

There are a few things that we do here at Moz around this model and that I’ve seen other companies who invest wisely in serendipity make, and that is we basically say 1 out of 5, 20% of our time and our budget goes to serendipitous marketing. It’s not a hard and fast rule, like, “Oh boy, I spent $80 on this. I’d better go find $20 to go spend on something serendipitous that’ll be hard to measure.” But it’s a general rule, and it gives people the leeway to say, “Gosh, I’m thinking about this project. I’m thinking about this investment. I don’t know how I’d measure it, but I’m going to do it anyway because I haven’t invested my 20% yet.”

I really like to brainstorm together, so bring people together from the marketing team or from engineering and product and other sections of the company, operations, but I really like having a single owner. The reason for that single owner doing the execution is because I find that with a lot of these kind of more serendipitous, more artistic style investments, and I don’t mean artistic just in terms of visuals, but I find that having that single architect, that one person kind of driving it makes it a much more cohesive and cogent vision and a much better execution at the end of the day, rather than kind of the design by committee. So I like the brainstorm, but I like the single owner model.

I think it’s critically important, if you’re going to do some serendipitous investments, that you have no penalty whatsoever for failure. Essentially, you’re saying, “Hey, we know we’re going to make this investment. We know that it’s the one out of five kind of thing, but if it doesn’t work out, that’s okay. We’re going to keep trying again and again.”

The only really critical thing that we do is that we gain intuition and experiential knowledge from every investment that we make. That intuition means that next time you do this, you’re going to be even smarter about it. Then the next time you do it, you’re going to gain more empathy and more understanding of what your audience really needs and wants and how that can spread. You’re going to gain more passion, a little more skill around it. Those kinds of things really predict success.

Then I think the last recommendation that I have is when you make serendipitous investments, don’t make them randomly. Have a true business or marketing problem that you’re trying to solve. So if that’s PR, we don’t get enough press, or gosh, sales leads, we’re not getting sales leads in this particular field, or boy, traffic overall, like we’d like to broaden our traffic sources, or gosh, we really need links because our kind of domain authority is holding us back from an SEO perspective, great. Make those serendipitous investments in the areas where you hope or think that the ROI might push on one of those particularly big business model, marketing model problems.

All right, everyone. Hope you’ve enjoyed this edition of Whiteboard Friday. We’ll see you again next week. Take care.

Video transcription by Speechpad.com


Sign up for The Moz Top 10, a semimonthly mailer updating you on the top ten hottest pieces of SEO news, tips, and rad links uncovered by the Moz team. Think of it as your exclusive digest of stuff you don’t have time to hunt down but want to read!

Continue reading →

Exploring the Biggest Website Technology and Google Rankings

Posted by Cyrus-Shepard

BuiltWith knows about your website.

Go ahead. Try it out.

BuiltWith also knows about your competitors’ websites. They’ve cataloged over 5,000 different website technologies on over 190 million sites. Want to know how many sites use your competitor’s analytics software? Or who accepts Bitcoin? Or how many sites run WordPress?

Like BuiltWith, Moz also has a lot of data. Every two years, we run a Search Engine Ranking Factors study where we examine over 180,000 websites in order to better understand how they rank in Google’s search results.

We thought, “Wouldn’t it be fun to combine the two data sets?

That’s exactly what our data science team, lead by Dr. Matt Peters, did. We wanted to find out what technologies websites were using, and also see if those technologies correlated with Google rankings.

The study

BuiltWith supplied Moz with tech info on 180,000 domains that were previously analyzed for the Search Engine Ranking Factors study. Dr. Peters then calculated the correlations for over 50 website technologies.

The ranking data for the domains was gathered last summer—you can read more about it here—and the BuiltWith data is updated once per quarter. We made the assumption that basic web technology, like hosting platforms and web servers, don’t change often.

It’s very important to note that the website technologies we studied are not believed to be actual ranking factors in Google’s algorithm. There are huge causation/correlation issues at hand. Google likely doesn’t care too much what framework or content management system you use, but because SEOs often believe one technology superior to the other, we thought it best to take a look..

Web hosting platforms performance

One of the cool things about BuiltWith is not only can you see what technology a website uses, but you can view trends across the entire Internet.

One of the most important questions a webmaster has to answer is who to use as a hosting provider. Here’s BuiltWith’s breakdown of the hosting providers for the top 1,000,000 websites:

Holy GoDaddy! That’s a testament to the power of marketing.

Webmasters often credit good hosting as a key to their success. We wanted to find out if certain web hosts were correlated with higher Google rankings.

Interestingly, the data showed very little correlation between web hosting providers and higher rankings. The results, in fact, were close enough to zero to be considered null.

Web Hosting Correlation
Rackspace 0.024958629
Amazon 0.043836395
Softlayer -0.02036524
GoDaddy -0.045295217
Liquid Web -0.000872457
CloudFlare Hosting -0.036254475

Statistically, Dr. Peters assures me, these correlations are so small they don’t carry much weight.

The lesson here is that web hosting, at least for the major providers, does not appear to be correlated with higher rankings or lower rankings one way or another. To put this another way, simply hosting your site on GoDaddy should neither help or hurt you in the large, SEO scheme of things.

That said, there are a lot of bad hosts out there as well. Uptime, cost, customer service and other factors are all important considerations.

CMS battle – WordPress vs. Joomla vs. Drupal

Looking at the most popular content management systems for the top million websites, it’s easy to spot the absolute dominance of WordPress.

Nearly a quarter of the top million sites run WordPress.

You may be surprised to see that Tumblr only ranks 6,400 sites in the top million. If you expand the data to look at all known sites in BuiltWith’s index, the number grows to over 900,000. That’s still a fraction of the 158 million blogs Tumblr claims, compared to the only 73 million claimed by WordPress.

This seems to be a matter of quality over quantity. Tumblr has many more blogs, but it appears fewer of them gain significant traffic or visibility.

Does any of this correlate to Google rankings? We sampled five of the most popular CMS’s and again found very little correlation.

CMS Correlation
WordPress -0.009457206
Drupal 0.019447922
Joomla! 0.032998891
vBulletin -0.024481161
ExpressionEngine 0.027008018

Again, these numbers are statistically insignificant. It would appear that the content management system you use is not nearly important as how you use it.

While configuring these systems for SEO varies in difficulty, plugins and best practices can be applied to all.

Popular social widgets – Twitter vs. Facebook

To be honest, the following chart surprised me. I’m a huge advocate of Google+, but never did I think more websites would display the Google Plus One button over Twitter’s Tweet button.

That’s not to say people actually hit the Google+ button as much. With folks tweeting over 58 million tweets per day, it’s fair to guess that far more people are hitting relatively few Twitter buttons, although Google+ may be catching up.

Sadly, our correlation data on social widgets is highly suspect. That’s because the BuiltWith data is aggregated at the domain level, and social widgets are a page-level feature.

Even though we found a very slight positive correlation between social share widgets and higher rankings, we can’t conclusively say there is a relationship.

More important is to realize the significant correlations that exist between Google rankings and actual social shares. While we don’t know how or even if Google uses social metrics in its algorithm (Matt Cutts specifically says they don’t use +1s) we do know that social shares are significantly associated with higher rankings.

Again, causation is not correlation, but it makes sense that adding social share widgets to your best content can encourage sharing, which in turn helps with increased visibility, mentions, and links, all of which can lead to higher search engine rankings.

Ecommerce technology – show us the platform

Mirror, mirror on the wall, who is the biggest ecommerce platform of them all?

Magento wins this one, but the distribution is more even than other technologies we’ve looked at.

When we looked at the correlation data, again we found very little relationship between the ecommerce platform a website used and how it performed in Google search results.

Here’s how each ecommerce platform performed in our study.

Ecommerce Correlation
Magento -0.005569493
Yahoo Store -0.008279856
Volusion -0.016793737
Miva Merchant -0.027214854
osCommerce -0.012115017
WooCommerce -0.033716129
BigCommerce SSL -0.044259375
Magento Enterprise 0.001235127
VirtueMart -0.049429445
Demandware 0.021544097

Although huge differences exist in different ecommerce platforms, and some are easier to configure for SEO than others, it would appear that the platform you choose is not a huge factor in your eventual search performance.

Content delivery networks – fast, fast, faster

One of the major pushes marketers have made in the past 12 months has been to improve page speed and loading times. The benefits touted include improved customer satisfaction, conversions and possible SEO benefits.

The race to improve page speed has led to huge adoption of content delivery networks.

In our Ranking Factors Survey, the response time of a web page showed a -0.10 correlation with rankings. While this can’t be considered a significant correlation, it offered a hint that faster pages may perform better in search results—a result we’ve heard anecdotally, at least on the outliers of webpage speed performance.

We might expect websites using CDNs to gain the upper hand in ranking, but the evidence doesn’t yet support this theory. Again, these values are basically null.

CDN Correlation
AJAX Libraries API 0.031412968
Akamai 0.046785574
GStatic Google Static Content 0.017903898
Facebook CDN 0.0005199
CloudFront 0.046000385
CloudFlare -0.036867599

While using a CDN is an important step in speeding up your site, it is only one of many optimizations you should make when improving webpage performance.

SSL certificates, web servers, and framework: Do they stack up?

We ran rankings correlations on several more data points that BuiltWith supplied us. We wanted to find out if things like your website framework (PHP, ASP.NET), your web server (Apache, IIS) or whether or not your website used an SSL certificate was correlated with higher or lower rankings.

While we found a few outliers around Varnish software and Symanted VeriSign SSL certificates, overall the data suggests no strong relationships between these technologies and Google rankings.

Framework Correlation
PHP 0.032731241
ASP.NET 0.042271235
Shockwave Flash Embed 0.046545556
Adobe Dreamweaver 0.007224319
Frontpage Extensions -0.02056009
SSL Certificates
GoDaddy SSL 0.006470096
GeoTrust SSL -0.007319401
Comodo SSL -0.003843119
RapidSSL -0.00941283
Symantec VeriSign 0.089825587
Web Servers
Apache 0.029671122
IIS 0.040990108
nginx 0.069745949
Varnish 0.085090249

What we can learn

We had high hopes for finding “silver bullets” among website technologies that could launch us all to higher rankings.

The reality turns out to be much more complex.

While technologies like great hosting, CDNs, and social widgets can help set up an environment for improving SEO, they don’t do the work for us. Even our own Moz Analytics, with all its SEO-specific software, can’t help improve your website visibility unless you actually put the work in.

Are there any website technologies you’d like us to study next time around? Let us know in the comments below!


Sign up for The Moz Top 10, a semimonthly mailer updating you on the top ten hottest pieces of SEO news, tips, and rad links uncovered by the Moz team. Think of it as your exclusive digest of stuff you don’t have time to hunt down but want to read!

Continue reading →

We Partnered with Builtwith to Study Big Website Tech and Google Rankings

Posted by Cyrus-Shepard

BuiltWith knows about your website.

Go ahead. Try it out.

BuiltWith also knows about your competitors’ websites. They’ve cataloged over 5,000 different website technologies on over 190 million sites. Want to know how many sites use your competitor’s analytics software? Or who accepts Bitcoin? Or how many sites run WordPress?

Like BuiltWith, Moz also has a lot of data. Every two years, we run a Search Engine Ranking Factors study where we examine over 180,000 websites in order to better understand how they rank in Google’s search results.

We thought, “Wouldn’t it be fun to combine the two data sets?

That’s exactly what our data science team, lead by Dr. Matt Peters, did. We wanted to find out what technologies websites were using, and also see if those technologies correlated with Google rankings.

How we conducted the study

BuiltWith supplied Moz with tech info on 180,000 domains that were previously analyzed for the Search Engine Ranking Factors study. Dr. Peters then calculated the correlations for over 50 website technologies.

The ranking data for the domains was gathered last summer—you can read more about it here—and the BuiltWith data is updated once per quarter. We made the assumption that basic web technology, like hosting platforms and web servers, don’t change often.

It’s very important to note that the website technologies we studied are not believed to be actual ranking factors in Google’s algorithm. There are huge causation/correlation issues at hand. Google likely doesn’t care too much what framework or content management system you use, but because SEOs often believe one technology superior to the other, we thought it best to take a look..

Web hosting platforms performance

One of the cool things about BuiltWith is not only can you see what technology a website uses, but you can view trends across the entire Internet.

One of the most important questions a webmaster has to answer is who to use as a hosting provider. Here’s BuiltWith’s breakdown of the hosting providers for the top 1,000,000 websites:

Holy GoDaddy! That’s a testament to the power of marketing.

Webmasters often credit good hosting as a key to their success. We wanted to find out if certain web hosts were correlated with higher Google rankings.

Interestingly, the data showed very little correlation between web hosting providers and higher rankings. The results, in fact, were close enough to zero to be considered null.

Web Hosting Correlation
Rackspace 0.024958629
Amazon 0.043836395
Softlayer -0.02036524
GoDaddy -0.045295217
Liquid Web -0.000872457
CloudFlare Hosting -0.036254475

Statistically, Dr. Peters assures me, these correlations are so small they don’t carry much weight.

The lesson here is that web hosting, at least for the major providers, does not appear to be correlated with higher rankings or lower rankings one way or another. To put this another way, simply hosting your site on GoDaddy should neither help or hurt you in the large, SEO scheme of things.

That said, there are a lot of bad hosts out there as well. Uptime, cost, customer service and other factors are all important considerations.

CMS battle – WordPress vs. Joomla vs. Drupal

Looking at the most popular content management systems for the top million websites, it’s easy to spot the absolute dominance of WordPress.

Nearly a quarter of the top million sites run WordPress.

You may be surprised to see that Tumblr only ranks 6,400 sites in the top million. If you expand the data to look at all known sites in BuiltWith’s index, the number grows to over 900,000. That’s still a fraction of the 158 million blogs Tumblr claims, compared to the only 73 million claimed by WordPress.

This seems to be a matter of quality over quantity. Tumblr has many more blogs, but it appears fewer of them gain significant traffic or visibility.

Does any of this correlate to Google rankings? We sampled five of the most popular CMS’s and again found very little correlation.

CMS Correlation
WordPress -0.009457206
Drupal 0.019447922
Joomla! 0.032998891
vBulletin -0.024481161
ExpressionEngine 0.027008018

Again, these numbers are statistically insignificant. It would appear that the content management system you use is not nearly important as how you use it.

While configuring these systems for SEO varies in difficulty, plugins and best practices can be applied to all.

Popular social widgets – Twitter vs. Facebook

To be honest, the following chart surprised me. I’m a huge advocate of Google+, but never did I think more websites would display the Google Plus One button over Twitter’s Tweet button.

That’s not to say people actually hit the Google+ button as much. With folks tweeting over 58 million tweets per day, it’s fair to guess that far more people are hitting relatively few Twitter buttons, although Google+ may be catching up.

Sadly, our correlation data on social widgets is highly suspect. That’s because the BuiltWith data is aggregated at the domain level, and social widgets are a page-level feature.

Even though we found a very slight positive correlation between social share widgets and higher rankings, we can’t conclusively say there is a relationship.

More important is to realize the significant correlations that exist between Google rankings and actual social shares. While we don’t know how or even if Google uses social metrics in its algorithm (Matt Cutts specifically says they don’t use +1s) we do know that social shares are significantly associated with higher rankings.

Again, causation is not correlation, but it makes sense that adding social share widgets to your best content can encourage sharing, which in turn helps with increased visibility, mentions, and links, all of which can lead to higher search engine rankings.

Ecommerce technology – show us the platform

Mirror, mirror on the wall, who is the biggest ecommerce platform of them all?

Magento wins this one, but the distribution is more even than other technologies we’ve looked at.

When we looked at the correlation data, again we found very little relationship between the ecommerce platform a website used and how it performed in Google search results.

Here’s how each ecommerce platform performed in our study.

Ecommerce Correlation
Magento -0.005569493
Yahoo Store -0.008279856
Volusion -0.016793737
Miva Merchant -0.027214854
osCommerce -0.012115017
WooCommerce -0.033716129
BigCommerce SSL -0.044259375
Magento Enterprise 0.001235127
VirtueMart -0.049429445
Demandware 0.021544097

Although huge differences exist in different ecommerce platforms, and some are easier to configure for SEO than others, it would appear that the platform you choose is not a huge factor in your eventual search performance.

Content delivery networks – fast, fast, faster

One of the major pushes marketers have made in the past 12 months has been to improve page speed and loading times. The benefits touted include improved customer satisfaction, conversions and possible SEO benefits.

The race to improve page speed has led to huge adoption of content delivery networks.

In our Ranking Factors Survey, the response time of a web page showed a -0.10 correlation with rankings. While this can’t be considered a significant correlation, it offered a hint that faster pages may perform better in search results—a result we’ve heard anecdotally, at least on the outliers of webpage speed performance.

We might expect websites using CDNs to gain the upper hand in ranking, but the evidence doesn’t yet support this theory. Again, these values are basically null.

CDN Correlation
AJAX Libraries API 0.031412968
Akamai 0.046785574
GStatic Google Static Content 0.017903898
Facebook CDN 0.0005199
CloudFront 0.046000385
CloudFlare -0.036867599

While using a CDN is an important step in speeding up your site, it is only one of many optimizations you should make when improving webpage performance.

SSL certificates, web servers, and framework: Do they stack up?

We ran rankings correlations on several more data points that BuiltWith supplied us. We wanted to find out if things like your website framework (PHP, ASP.NET), your web server (Apache, IIS) or whether or not your website used an SSL certificate was correlated with higher or lower rankings.

While we found a few outliers around Varnish software and Symanted VeriSign SSL certificates, overall the data suggests no strong relationships between these technologies and Google rankings.

Framework Correlation
PHP 0.032731241
ASP.NET 0.042271235
Shockwave Flash Embed 0.046545556
Adobe Dreamweaver 0.007224319
Frontpage Extensions -0.02056009
SSL Certificates
GoDaddy SSL 0.006470096
GeoTrust SSL -0.007319401
Comodo SSL -0.003843119
RapidSSL -0.00941283
Symantec VeriSign 0.089825587
Web Servers
Apache 0.029671122
IIS 0.040990108
nginx 0.069745949
Varnish 0.085090249

What we can learn

We had high hopes for finding “silver bullets” among website technologies that could launch us all to higher rankings.

The reality turns out to be much more complex.

While technologies like great hosting, CDNs, and social widgets can help set up an environment for improving SEO, they don’t do the work for us. Even our own Moz Analytics, with all its SEO-specific software, can’t help improve your website visibility unless you actually put the work in.

Are there any website technologies you’d like us to study next time around? Let us know in the comments below!


Sign up for The Moz Top 10, a semimonthly mailer updating you on the top ten hottest pieces of SEO news, tips, and rad links uncovered by the Moz team. Think of it as your exclusive digest of stuff you don’t have time to hunt down but want to read!

Continue reading →