Featured SSL HTTPS as a Google ranking signal

eva2000 · Aug 9, 2014

By now the news has spread that Google is how factoring in https / SSL as signal in their search ranking algorithm. It will initially only affect less than 1% of global queries so there is still time to get your SSL certificates and get your domains sorted for conversion from http:// to https://

For now it's only a very lightweight signal — affecting fewer than 1% of global queries, and carrying less weight than other signals such as high-quality content — while we give webmasters time to switch to HTTPS. But over time, we may decide to strengthen it, because we’d like to encourage all website owners to switch from HTTP to HTTPS to keep everyone safe on the web.
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But how many queries is 1% of Google's global search queries, a quick Google (pun intended) led me to Google Search Statistics - Internet Live Stats which suggests that Google processes up to 3.5 billion search queries globally each day. So 1% = 35 million Google search queries each day maybe affected by factoring https and SSL into Google's ranking algorithm.

More info from Explainer: How Google's New SSL / HTTPS Ranking Factor Works

Google Runs HTTPS Ranking Signal In Real Time
Unlike Penguin or Panda algorithms, this is a ranking signal that is run in real time. As soon as Google indexes your new HTTPS URL, that URL will immediately see a tiny ranking boost because of the HTTPS URL. That doesn’t mean you will see your rankings jump from result number 5 to 4, but it will, behind the scenes, have a small, tiny, boost in the overall ranking algorithm.

Google’s John Mueller said this in a Google hangout video, which you can watch here at 29 minutes and 6 seconds in.

Google’s HTTPS Ranking Signal Is On A Per-URL Basis
If you have some parts of your site migrated to HTTPS and some parts not, Google will give the boost to the ones on the HTTPS URLs and not to the others. The signal is on a per-URL basis, and not on a sitewide basis. Of course, Google wants you to migrate your whole site to HTTPS but if you want to do it in stages or test it out, technically you can do it on a URL by URL basis.

Google’s John Mueller also said this in the same Google hangout video, which you can watch hereat 29 minutes and 6 seconds in.

Google’s Change Of Address Tool Not Supported
Google recommends that when you do a site move, i.e. HTTP to HTTPS, you use the change of address tool within Google Webmaster Tools. But with HTTP to HTTPS, you cannot. The change of address tool does not support HTTPS migrations, yet.

There is no estimate time for when Google will support it. Google’s John Mueller said if you are doing the migration, a 301 redirect is enough of a signal to communicate the change, even without using the change of address tool.

Google News Publishers Can Switch To HTTPS
A major concern is how the Google News index differs from the normal Google web index. But Google told us that migrating sites included in the Google News index will have no issue. Just go through the normal migration process and Google News will pick up on the change as well.

HTTPS Ranking Signal Is Unrelated To Google Panda Or Other Algorithms
For some reason, some webmasters felt that the new HTTPS ranking signal was part of Google’sPanda algorithm. That is not the case; the HTTPS ranking signal is a standalone signal that is independent from any other ranking signal or algorithms.

Google’s John Mueller also said this in the same Google hangout video, which you can watch hereat 29 minutes and 6 seconds in.

SSL Errors Via Google Webmaster Tools Since HTTPS Signal Launched
Some are reporting that since the HTTPS ranking signal launched, Google has been sending out security certificate errors via Google Webmaster Tools. Google’s John Mueller said on Twitter they are unrelated, and in many cases, were sent back months ago.

If you received SSL errors in Webmaster Tools or see bugs in the search results, Google says that has nothing to do with the latest changes. Google blames the error on misconfigured certificates, but the webmasters say with CDNs and shared hosting that it is out of their control.

I documented the troubles over here if you want to see more details and Dave Naylor and Jennifer Slegg also go through the issues.
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The info that would concern us Centmin Mod Nginx users who are thinking of setting up their domains with https supported SSL certificates.

In the coming weeks, we’ll publish detailed best practices (it's in our help center now) to make TLS adoption easier, and to avoid common mistakes. Here are some basic tips to get started:

Decide the kind of certificate you need: single, multi-domain, or wildcard certificate

Use 2048-bit key certificates

Use relative URLs for resources that reside on the same secure domain

Use protocol relative URLs for all other domains

Check out our Site move article for more guidelines on how to change your website’s address

Don’t block your HTTPS site from crawling using robots.txt

Allow indexing of your pages by search engines where possible. Avoid the noindex robots meta tag.

If your website is already serving on HTTPS, you can test its security level and configuration with the Qualys Lab tool. If you are concerned about TLS and your site’s performance, have a look at Is TLS fast yet?. And of course, if you have any questions or concerns, please feel free to post in our Webmaster Help Forums.
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Centmin Mod Nginx SPDY/3.1 SSL setup

For Centmin Mod Nginx users wanting to use SSL and serve their web sites via https, check out the following threads and Centmin Mod Nginx SPDY SSL setup guide.

Nginx HTTPS / SSL Google SPDY configuration

For folks using Centmin Mod Nginx and thinking of using Cloudflare's free SSL certificate offer see some setup instructions at SSL - Cloudflare Flexible SSL, Nginx & XenForo

For folks wanting to use Cloudflare FULL SSL option with self signed SSL certificate.

Ensure SSL certificates use SHA-2 based signature algorithms

Note switching from http to https may affect Adsense revenues

SSL - Google SPDY SSL vs non-SPDY SSL | Centmin Mod Community

SSL Certificates - which do you use and how much ? | Centmin Mod Community

Benefits of Wildcard SSL certificates for domain sharded SPDY SSL - (Using CloudFlare to mix domain sharding and SPDY | CloudFlare Blog

How to install an ssl certificate? | Centmin Mod Community

Feeling adventurous ? You could try Cloudflare RC4 kill patch for OpenSSL with Centmin Mod Nginx SPDY SSL

I am working on a new improved Centmin Mod Nginx vhost menu which has auto generator for generating the SSL required CSR code and private key for new domains with choice of traditional RSA 2048 bit/4096 bit or ECC 256bit signature algorithms. Preview can be seen at Nginx - Centmin Mod Nginx VHOST SPDY SSL Generator testing | Centmin Mod Community With working ECC 256 bit SSL at sslspdy.com.

SSL - ECC 256 bit vs RSA 2048 bit SSL | Centmin Mod Community

Premium User Membership details including the list of discounted SSL Certificated prices are posted at Premium User Membership Explained | Centmin Mod Community Discussion and questions can be posted at Premium User Membership Discussion | Centmin Mod Community

Domain Validation for SSL certificates

You'll most likely be using domain validated SSL certificates so will need a working @yourdomain.com email address to verify and prove your domain name ownership at SSL purchase time. So check out Free @yourdomain.com Email Accounts & Alternatives | Centmin Mod Community

SPDY check

Test your https:// SSL based domain for SPDY via the following:

Spdycheck.org site i.e. for my test blog SPDYCheck: Testing Websites for SPDY Support. Ignore warning of out of date SPDY protocol spdy/3 vs spdy/2.

For Chrome browser, install SPDY Indicator extension.

For Opera browser, install SPDY indicator extension.

For Firefox browser, install SPDY indicator add-on.

For Internet Explorer version 10 and below, the browser doesn't support SPDY connections and will fall back to non-SPDY connections. Internet Explorer 11+ will support SPDY.

SSL check

Then test your https:// SSL based domain via these SSL test sites:

https://sslcheck.globalsign.com

Qualys SSL Labs - Projects / SSL Server Test

GeoCerts SSL Checker

You can use this online tool to check the order of certificates is configured correctly atSSL Certificate Checker - Check for vulnerabilities like HeartBleed

CSR (Certificate Signing Request) Code Checker

SSL Toolbox

General SSL Info

What is required for SSL validation at order time ?

CA Security Council | SSL Basics

What does the SSL Warranty actually mean

SSL Country Code list SSL.com Accepted Country Codes for CSRs | SSL.com

Comodo SSL install guides: Knowledgebase

What is SSL: Safe Internet Shopping with SSL - Or is it?

HTTPS for Securing Web Pages (Guide)

Signed vs. Self-signed Certificates

Explainer: How Google's New SSL / HTTPS Ranking Factor Works

HTTPS Mixed Content: Still the Easiest Way to Break SSL

More interesting SSL statistics which are updated monthly Trustworthy Internet Movement - SSL Pulse

Nginx posted a blog article on this as well How to Improve SEO with HTTPS and NGINX - NGINX

Difference between an SSL Wildcard vs standard SSL Certification

Wildcard SSL Certificate covers all sub-domains of your main domain. If you have multiple sub-domains to secure, then a Wildcard SSL Certificate can save you hundreds or thousands of dollars and save your time for the configure and install process as opposed to buying individual SSL certificates. For example a single Wildcard SSL Certificate for *.yourdomain.com can be used to secure:

forum.yourdomain.com

blog.yourdomain.com

news.yourdomain.com

download.yourdomain.com

anything.yourdomain.com

For standard SSL Certificates, for the above 5 listed sub-domains, you would have to purchase and configure and install five separate SSL Certificates - one for each sub-domain.

Making Centmin Mod Nginx site domain conversion to https SSL a useful exercise

Thought I'd post this as it's what I am doing with some of my private paying clients who are looking to switch to https SSL. What you do if you're unsure if https SSL conversion is right for your web site is to setup a duplicate test dev copy of your live site on a separate Centmin Mod Nginx setup server or IP address and preview the test copy site domain via local computer hosts file edits.

For instance on windows pc to preview a test site on different ip, just edit C:\Windows\System32\drivers\etc\hosts with line
Code:
newipaddress domain.com www.domain.com subdomain.domain.com
Then when you go to domain.com in your browser it bypasses your ISP DNS and uses the local hosts file edit to dirct domain.com to newipaddress. You can then setup https SSL as per Nginx HTTPS / SSL Google SPDY configuration on the test dev copy and preview how your site will function under https SSL before doing the same on live production site. You can then use test dev copy for any other testing you like to do in future too as well as serves as a useful exercise in making sure your backup and restore processes are working And also allows you to test https SSL on test dev site without affecting your live production site's rankings or search engine listings.

Just remember to remove the hosts file edit line once you want to view your live production site

Sharing your http to https SSL experience and journey

If you want you can share your own experiences with converting from http to https SSL in the forums at Domains, DNS, Email & SSL Certificates. I have added a prefix tag for SSL for new threads created, so you can also filter on SSL prefix by clicking on it to view only SSL tagged threads - example click here

Additional Notes

If you rely on using advertising networks like Google Adsense etc, be sure to ask your ad rep whether they support serving ads via https SSL as not all ad networks support https SSL which may cause mixed content errors for visitors to your https SSL enabled site if the ads are served via non-https methods. See article here

Peter Downey · Aug 9, 2014

I gotta admit, I saw this coming back when they changed Webmaster Tools.

For those of you that don't know, Google Webmaster Tools now views http and https as different domains. So if you haven't looked at your account in a while, and previously neglected to specify either tag on your site, you should go do so now. Previously you were able to just put Domain Name Registration and Web Hosting | Domain.com or domain.com, now you must include the http or https part too. The change is not retroactive either, so you'll need to update old domains if you failed to add the tag the first time around. Otherwise your stats will look very strange.

eva2000 · Aug 10, 2014

Yeah I found out when I switched this forum to https and needed to setup a new domain entry in webmaster tools

Bubka3 · Aug 10, 2014

I started forcing HTTPs 3 months ago, and then this! More rank for me.

You wouldn't happen to know what "The server does not support Forward Secrecy with the reference browsers. Grade reduced to A-. MORE INFO »" means?

eva2000 · Aug 10, 2014

Better explanation of Forward Secrecy at Security Labs: SSL Labs: Deploying Forward Secrecy | Qualys Community

Old brrowsers don't support Forward Secrecy though so not much you can do about

i.e. no support for Forward Secrecy in browsers via

Android 2.3.7

IE 6 /XP

IE 8 /XP

OpenSSL 0.9.8 some versions

For Centmin Mod Nginx SPDY/SSL users following Nginx HTTPS / SSL Google SPDY configuration should get you setup for Forward Secrecy (via Elliptic Curve cryptography (ECDHE) algorithm) for browsers that support it.

SSL and Forward Secrecy
SSL supports forward secrecy using two algorithms, the standard Diffie-Hellman (DHE) and the adapted version for use with Elliptic Curve cryptography (ECDHE). Why isn't everyone using them, then?

Assuming the interest and the knowledge to deploy forward secrecy are there, two obstacles remain:

DHE is significantly slower. For this reason, web site operators tend to disable DHE suites in order to achieve better performance. Furthermore, not all browsers support all the necessary suites. Internet Explorer 9 and 10, for example, support DHE only in combination with obsolete DSA keys.

ECDHE too is slower, but not as much as DHE. (Vincent Bernat published a blog post about the impact of ECDHE on performance, but be warned that the situation might have changed since 2011. I am planning to do my own tests soon.) However, ECDHE algorithms are relatively new and not as widely supported. For example, they were added to OpenSSL only fairly recently, in the 1.x releases.

If you're willing to support both ECDHE and DHE, then you will probably be able to support forward secrecy with virtually all clients. But ECDHE alone is supported by all major modern browsers, which means that even with only ECDHE you might be able to cover a large-enough chunk of your user base. The decision what to do is entirely up to you. Google's sites, for example, tend to not have any DHE suites in their configuration.
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i.e. for this forum Qualys SSL Labs - Projects / SSL Server Test / community.centminmod.com (yeah certificate up for renewal so getting a new SSL wildcard certificate for centminmod.com domain soon)

hungphutho · Aug 12, 2014

@eva2000 I use the Netcraft toolbar for chrome , I see problem security warning Heartbleed on community.centminmod.com
Link
Code:
http://toolbar.netcraft.com/site_report?url=https://community.centminmod.com
I do not know about bug Heartbleed , Heartbleed Bug

eva2000 · Aug 12, 2014

hungphutho said: ↑
@eva2000 I use the Netcraft toolbar for chrome , I see problem security warning Heartbleed on community.centminmod.com
Link
Code:
http://toolbar.netcraft.com/site_report?url=https://community.centminmod.com
I do not know about bug Heartbleed , Heartbleed Bug
Click to expand...
that toolbar is wrong, do a propper heartbleed test at Qualys SSL Labs - Projects / SSL Server Test / community.centminmod.com or Test your server for Heartbleed (CVE-2014-0160)
Code:
Heartbeat (extension)    Yes
Heartbleed (vulnerability)    No (more info)

eva2000 · Aug 14, 2014

Heads up, Premium User Membership details including the list of discounted SSL Certificated prices are posted at Premium User Membership Explained | Centmin Mod Community Discussion and questions can be posted at Premium User Membership Discussion | Centmin Mod Community

hungphutho · Aug 22, 2014

sad

Code:

https://www.seroundtable.com/https-google-adsense-19035.html

eva2000 · Aug 22, 2014

ouch that ain't good at all for folks counting on adsense

So I was all excited migrating over this site to SSL and my corporate site but despite very little ranking changes, both negative or positive thus far, AdSense earnings seem to have taken a hit somewhat.

Yes, Google AdSense is supported on HTTPS / SSL / Secure web sites but not all the inventory seems to be available, resulting in lower earnings for those who migrate.
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first comment on that site says Adsense web site mentions this specifically at AdSense ad code support for SSL - AdSense Help

AdSense ad code support for SSL
We’ve updated the AdSense ad code so that it now supports secure ad serving through Secure Sockets Layer (SSL) on Hypertext Transfer Protocol Secure (HTTPS) web pages. This means that publishers with secure sites, i.e., sites that are served over the HTTPS protocol, can now use AdSense ad code to serve SSL-compliant ads. Examples of secure websites include many financial services sites, e-commerce sites, and social networking sites.

Some important things to know about the SSL-compatible ad code:

The SSL-compatible ad code is designed for publishers who already have existing HTTPS-enabled sites. We don’t recommend that publishers with HTTP sites convert their sites to HTTPS unless they have a strong reason to do so. Unless you're a publisher who needs to protect important user information like credit card details, passwords, or medical records etc., you probably don't need change your site to HTTPS.

HTTPS-enabled sites require that all content on the page, including the ads, be SSL-compliant. As such, AdSense will remove all non-SSL compliant ads from competing in the auction on these pages. If you do decide to convert your HTTP site to HTTPS, please be aware that because we remove non-SSL compliant ads from the auction, thereby reducing auction pressure, ads on your HTTPS pages might earn less than those on your HTTP pages.

The SSL-compatible code also works on HTTP sites and doesn’t change how ads are served on these sites.

Older versions of the AdSense ad code don’t work with secure content. If you try to run HTTP ads on an HTTPS site, on most older browsers your visitors will get a mixed content warning, while on some modern browsers your visitors might not see any ads at all. If you want to place ads on secure pages, you’ll need to use the new SSL-compatible ad code.
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eva2000 · Aug 22, 2014

But I guess with Google adding https SSL to ranking signal, over time more advertisers within Adsense would themselves move to https SSL compliant ads and thus the Adsense revenues for publishers would rise back to normal levels.

The question how much time would it take for advertisers to move to https compliance and how much time it takes for adsense rates to go back up

Also advertisers would have incentive to move to https now, as they know without being https compliant, their ads won't have maximum coverage and exposure

Peter Downey · Aug 22, 2014

eva2000 said: ↑

But I guess with Google adding https SSL to ranking signal, over time more advertisers within Adsense would themselves move to https SSL compliant ads and thus the Adsense revenues for publishers would rise back to normal levels.

The question how much time would it take for advertisers to move to https compliance and how much time it takes for adsense rates to go back up

Also advertisers would have incentive to move to https now, as they know without being https compliant, their ads won't have maximum coverage and exposure
Click to expand...

I totally agree. I have a feeling that this will be a problem in the short term, but in the long run things will slowly get back to normal.

That being said, I feel like a lot of the internet is slowly moving away from adwords and moving towards stuff like affiliate marketing and sponsored posts. On the few websites that I write for, a much larger portion of my monthly earnings come from that type of content. A dependable stream of adsense revenue is nice to count on month to month though too.

eva2000 · Aug 22, 2014

Yeah affiliate and sponsored ads just provide better control for webmasters to properly target their visitor audience. Afterall, who knows their audience best

I guess SEO folks and web sites can do their part in speeding up this transition by hammering at the message to advertisers that non-https compliance reduces advertiser's maximum exposure and that they should become https compliant ASAP

eva2000 · Aug 23, 2014

interesting web site https SSL web site adaption and usage stats at SSL providers Web Usage Statistics

Looks like top 10k sites has the most dramatic SSL usage increase for Comodo SSL and Comodo Positive SSL certificates. The Top 100k sites a minor bump and top 1 million sites actually a drop.

Floren · Aug 23, 2014

eva2000 said: ↑

Old brrowsers don't support Forward Secrecy though so not much you can do about.
Click to expand...

SSLabs do not check for old browser presence, but rather if you have the ciphers enabled on your server for proper forward secrecy:
Qualys SSL Labs - Projects / SSL Server Test / axivo.com

@Bubka3, with robust forward secrecy you will lose some key exchange points. But to myself, it is much more important to have proper forward secrecy configured on your server.

eva2000 · Aug 23, 2014

@Floren what's your cipher suite order ? only difference from FS with most browsers vs FS with modern browser score, I see from Security Labs: SSL Labs: Deploying Forward Secrecy | Qualys Community is supporting DHE ciphers and Google doesn't even support DHE ciphers anymore (Qualys SSL Labs - Projects / SSL Server Test / google.com)

SSL and Forward Secrecy
SSL supports forward secrecy using two algorithms, the standard Diffie-Hellman (DHE) and the adapted version for use with Elliptic Curve cryptography (ECDHE). Why isn't everyone using them, then?

Assuming the interest and the knowledge to deploy forward secrecy are there, two obstacles remain:

DHE is significantly slower. For this reason, web site operators tend to disable DHE suites in order to achieve better performance. Furthermore, not all browsers support all the necessary suites. Internet Explorer 9 and 10, for example, support DHE only in combination with obsolete DSA keys.

ECDHE too is slower, but not as much as DHE. (Vincent Bernat published a blog post about the impact of ECDHE on performance, but be warned that the situation might have changed since 2011. I am planning to do my own tests soon.) However, ECDHE algorithms are relatively new and not as widely supported. For example, they were added to OpenSSL only fairly recently, in the 1.x releases.

If you're willing to support both ECDHE and DHE, then you will probably be able to support forward secrecy with virtually all clients. But ECDHE alone is supported by all major modern browsers, which means that even with only ECDHE you might be able to cover a large-enough chunk of your user base. The decision what to do is entirely up to you. Google's sites, for example, tend to not have any DHE suites in their configuration.

Configuring Forward Secrecy
Enabling forward secrecy can be done in two steps:

Configure your server to actively select the most desirable suite from the list offered by SSL clients.

Put ECDHE and DHE suites to the top of your list. (The order is important; because ECDHE suites are faster, you want to use them whenever clients supports them.)

Knowing which suites to enable and move to the top can be tricky, because not all browsers (devices) support all forward secrecy suites. At this point you may want to look for inspiration from those who are already supporting forward secrecy, for example Google.

In the nutshell, these are some of the suites you might want to enable3 and push (close) to the top:

TLS_ECDHE_RSA_WITH_RC4_128_SHA

TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA

TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA

TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA

Click to expand...

with my FS with modern browsers, FS is lost on ancient browsers such as Android 2.3.7, IE 6 XP, IE 8 XP which are ancient and don't even make up 0.6% of my traffic.

7 out 13,305 sessions are XP with IE 6 + 8 = 0.53%. I am actively encouraging visitors to update their browsers too Browser Update Reminder | Centmin Mod Community

eva2000 · Aug 24, 2014

More interesting SSL statistics which are updated monthly Trustworthy Internet Movement - SSL Pulse

Details:

SSL Pulse is a continuous and global dashboard for monitoring the quality of SSL support across the top one million web sites. SSL Pulse is powered by the assessment technology of SSL Labs, which is focused on auditing the SSL ecosystem, raising awareness, and providing tools and documentation to web site owners so they can improve their SSL implementations.
Click to expand...

Methodology
The goal of the SSL Labs surveys is to measure the effective security of SSL. After some experimentation with an assessment of substantially all public SSL sites (about 1.5 million of them), we settled on a smaller list of about 200,000 SSL-enabled web sites, based on Alexa’s list of most popular sites in the world. Working with a smaller list is more manageable and allows us to conduct the surveys more often. It also allows us to conduct more thorough analysis to look for application-layer issues that may subvert SSL security. In addition, focusing on popular sites – we believe – gives us more relevant results and also excludes abandoned sites.

Having worked with several data sets, each drawing from a different list of sites, we have come to understand that what we are presenting in our surveys is not a measurement, but a reasonable approximation of the state of SSL. More important than the results from any one round of tests is how the measurements change over time. The adoption of a single selection methodology and a switch to monthly testing should give us an indicator of where we’re heading, which is what we believe matters.
Click to expand...

eva2000 · Aug 31, 2014

Nginx posted a blog article on this as well How to Improve SEO with HTTPS and NGINX - NGINX

rdan · Aug 31, 2014

It's important to note that you will not receive the benefits of SPDY if you are sharding domains.
Click to expand...

What is it by the way?

eva2000 · Aug 31, 2014

RoldanLT said: ↑

What is it by the way?
Click to expand...

sharding domains = dividing your page elements to several hostnames like you would do for CDN usage

i.e. sharding centminmod.com would be serving css and images via

hostname1.centminmod.com
hostname2.centminmod.com

instead of serving all SPDY SSL requests via just one domain

centminmod.com

The reason is part of the benefit of SPDY SSL as outlined at Nginx HTTPS / SSL Google SPDY configuration is

SPDY uses fewer TCP connections, which means fewer chances to lose the SYN packet. In many TCP implementations, this delay is disproportionately expensive (up to 3 s).

Click to expand...

So you use one TCP connection to serve all page element requests via SPDY SSL. If you split the hostnames (shard them), then you're using more than one TCP connection. Of course you could offset that if your sharded domains are also SPDY SSL based. So like on this forum, using the KeyCDN CDN service via SPDY SSL Nginx PageSpeed - If I'll try to use CDN | Centmin Mod Community you'd end up funneling all page element requests via 2x TCP connections (community.centminmod.com and cdn served SPDY SSL hostname) rather than single TCP connection = community.centminmod.com. Still better than several dozen http requests in non-SPDY SSL setup

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