Ben90 Posted May 8, 2015 Share Posted May 8, 2015 Hi guys, I'd like to ask the impact of using CDN to SEO. I am using SSL for the website, and is it alright for SEO if I just using shared SSL from CDN provider? The address will be like domain.r.worldssl.net. I read from some articles that it is best to make it like cdn.domain for SEO, but it means I need to purchase another SSL for that particular address. Any thoughts? Link to comment Share on other sites More sharing options...
kyrios Posted May 13, 2015 Share Posted May 13, 2015 That means you must buy wild card SSL Link to comment Share on other sites More sharing options...
jetx Posted May 15, 2015 Share Posted May 15, 2015 Yeah I do this, not all that cheap really. So long as the CDN provider allows custom crt at a reasonable cost. You need to shop around a bit for that. If you already own a crt from say digicert then they will generally allow to upgrade your existing. The type of cert which I use is actually a multi domain certificate, common name, plus SAN (Subject Alternative Name). The SAN is what is setup as a cname and points to the CDN. Also, it's not so much for SEO. It's more so my customers don't see some random address which can appear a bit suspect to some visitors. Link to comment Share on other sites More sharing options...
jetx Posted May 15, 2015 Share Posted May 15, 2015 "Also, it's not so much for SEO": not the reason I decided to use a custom cert. Maybe it does affect SEO, makes sense I guess as google treats it as a redirect. Link to comment Share on other sites More sharing options...
Ben90 Posted May 15, 2015 Author Share Posted May 15, 2015 (edited) That means you must buy wild card SSL I have it already, Kyrios. But I haven't changed it yet in CDN admin panel. Do you have any idea what's the best address for CDN custom address? Yeah I do this, not all that cheap really. So long as the CDN provider allows custom crt at a reasonable cost. You need to shop around a bit for that. If you already own a crt from say digicert then they will generally allow to upgrade your existing. The type of cert which I use is actually a multi domain certificate, common name, plus SAN (Subject Alternative Name). The SAN is what is setup as a cname and points to the CDN. Also, it's not so much for SEO. It's more so my customers don't see some random address which can appear a bit suspect to some visitors. I reckon I can use a custom url by providing them a CRT of my SSL. What is the most SEO friendly url for CDN? Is it like this: cdn.sitename.com ? I am a bit worried about SEO while using shared SSL even though I set my domain name at the beginning of custom public SSL url. Well, the CDN provider told me to put this on the homepage: # serve different robots.txt for CDN77's edge servers # so search bots will be blocked on edge server's robots.txt file RewriteEngine On RewriteCond %{HTTP:VIA} ^.*\.worldcdn\..*$ RewriteRule ^robots\.txt$ robots_cdn77.txt [L] And create robots_cdn77.txt containing this: User-agent: * Disallow: / Any thoughts? Edited May 15, 2015 by Ben90 (see edit history) Link to comment Share on other sites More sharing options...
Dh42 Posted June 16, 2015 Share Posted June 16, 2015 You are going to reduce your SEO by using a CDN. I am developing a work around for one of my clients fixing the issue. But using a CDN will de-index all of your images on the main domain, making your site look smaller and removing any click throughs you get from google images. 1 Link to comment Share on other sites More sharing options...
selectshop.at Posted June 16, 2015 Share Posted June 16, 2015 You are going to reduce your SEO by using a CDN. The same practical experience I made along this last 2 years. I got back to WITHOUT CDN. Link to comment Share on other sites More sharing options...
Dh42 Posted June 16, 2015 Share Posted June 16, 2015 We have actually found a way around it. We are grabbing the server agent and serving them the site with no CDN when it is google bot. That way google does not see you are using a CDN. 1 Link to comment Share on other sites More sharing options...
selectshop.at Posted June 16, 2015 Share Posted June 16, 2015 (edited) OK. In fact I prefer to work on a dedicated (or VPS cloud) nginx with google page speed, instead of CDN. Edited June 16, 2015 by selectshop.at (see edit history) Link to comment Share on other sites More sharing options...
Tung at RockPOS.com Posted November 19, 2015 Share Posted November 19, 2015 Hello there, What if I create sub-domains, like these: - cdn1.mydomain.com - cdn2.mydomain.com And put them into Media server fields under Performance tab. 1. Does it also affect to SEO? 2. How to enable Canical URL in this case? If enabled, does it avoid affecting to SEO? Thank you! Link to comment Share on other sites More sharing options...
Dh42 Posted November 19, 2015 Share Posted November 19, 2015 Tung, It does affect SEO. It will drop the ranking of your current images out of the search engines. For some sites the image ranking means something for others it does not. You can set the canonical headers in the images, but from what I have seen google does not respect them. We just disable the media servers if google is requesting the page. 1 Link to comment Share on other sites More sharing options...
Tung at RockPOS.com Posted November 19, 2015 Share Posted November 19, 2015 It does affect SEO. It will drop the ranking of your current images out of the search engines. For some sites the image ranking means something for others it does not. You can set the canonical headers in the images, but from what I have seen google does not respect them. We just disable the media servers if google is requesting the page. Makes sense. Thank you! Link to comment Share on other sites More sharing options...
Ben90 Posted November 20, 2015 Author Share Posted November 20, 2015 Makes sense. Thank you! I reckon you can exclude them by creating separate robots.txt & creating kinda rule in .htaccess to exclude them from Google bot Link to comment Share on other sites More sharing options...
trevorgilligan Posted July 26, 2016 Share Posted July 26, 2016 anyone know how to do this?? where to change code? thanks Link to comment Share on other sites More sharing options...
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