Moz Q&A is closed.
After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
Is DOCTYPE important for SEO?
-
Hello fellow Mozzers.
I am just having a brief look at a potential clients website before speaking to them tomorrow and whilst looking at the source I noticed that they don't appear to have a clear definition for their Doctype.
All the have at the top of each page is
I have to admit that Doctypes aren't my strong point but I know that they are normally slightly more descriptive than this.
Can this have any effect on rankings? or is this just an issue for W3C validation?
Thanks
-
If it is an HTML 5 page that should be just fine as it is the HTML 5 doctype tag.
Check out the info here: http://www.w3schools.com/html5/tag_doctype.asp
It might cause trouble with really old browsers, but if they have that going I would hope they have already thought about the reasons for and against using it
EDIT: even better link: http://www.w3.org/TR/html5-diff/#doctype
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
Lightboxes and SEO
Do lightboxes (AKA popup boxes when you click "learn more" type CTAs) have any negative effect on SEO? We are looking at revamping our sites to have more of a tiled approach, and a lightbox with summary content popping out with additional CTAs, directing to pages with more information or free trial pages. Is there any downside to this approach from an organic perspective? is there anything specific to keep in mind when creating these if not?
Intermediate & Advanced SEO | | Chris81980 -
Advanced SEO - What would you do after you run out of keywords?
Hello! Our company has been growing in terms of traffic and ranking well for a couple of years but we are now kind of stagnating because we just don't know what to do next. We have a good blog - and with our blogs, we have been targeting all major keywords with their related keywords as a bucket. - "keyword theme / page" for a long time. But it seems we now don't have any major keyword theme to write about. What is worse is that we don't see any traffic growth since 2014 September. (although we added many good blogs) So what would do you when you run out of keywords? or keyword themes? Would you just keep pumping in more blogs and hope that you get more clicks? or at some point, you just don't care about keywords and write whatever relevant to your site? Wouldn't it hurt our site if we create similar keyword themed pages? (like regurgitating our keywords?) or even same keyword targeting pages? You must have similar experience if you are an owner of a niche site. Can you please share your experience with this kind of headaches? Thank you and look forward to your comments.
Intermediate & Advanced SEO | | joony3 -
Domain name suffix impact on SEO
Hello there, We are about to launch a new website and were wondering what impact a specific suffix would have from an SEO point of view. We were thinking about going for a domain which ends in .london as oppose to .com We are based in London and sell world wide via our website. We are suggesting www.domain.london as oppose to www.domain.com I would appreciate your views... Thanks
Intermediate & Advanced SEO | | roberthseo0 -
SEO time
I wanto to be in the top of the google search. I am usiing a lot of SEO tools but... I have done it during one month. Do I have to wait more?
Intermediate & Advanced SEO | | CarlosZambrana0 -
Domain Forwarding - SEO Impacts?
I have a site that has been active for years - thinkbiglearnsmart.com. Awhile ago I had purchased about 50 domain names that were relevant to my company. I still have those urls and would like to use them to point to different pages on my site - just because they have good key words in the URLs. For example - one is dreamweavertrainingclassesonlinelive.com. Currently they are all redirecting to my homepage. A. is that hurting me? B. I would like to redirect to the more relevant page. ie the page dedicated to Dreamweaver training (http://thinkbiglearnsmart.com/dreamweaver-creative-cloud-training-course/ ) Will this hurt my Dreamweaver keyword for example because there is already a 301 redirect on that page from a very old Dreamweaver link which was something like thinkbiglearnsmart.com/dreamweaver C. On my hosting account where I can select where the URL forwards to - it has an option for "Location forwarding" and "Frame forwarding" - currently they are set to Frame forwarding - which one is best? Any help is much appreciated!!! Thank you!
Intermediate & Advanced SEO | | webbmason0 -
Is CloudFlare bad for SEO?
I have been hit by DDoS attacks lately...not on a huge scale, but probably done by some "script kiddies" or competitors of mine. Still, I need to take some action in order to protect my server and my site against all of this spam traffic that is being sent to it. In the process of researching the tools available for defending a website from a DDoS attack, I came across the service offered by CloudFlare.com. According to the CloudFlare website, they protect your site against a DDoS attack by showing users/visitors they find suspicious an interstitial that asks them if they are a real user or a bot...this interstitial contains a Captcha that suspicious users are asked to enter in order to visit the site. I'm just wondering what kind of an effect such an interstitial could have on my Google rankings...I can imagine that such a thing could add to increased click-backs to the SERPs and, if Google detects this, to lower rankings. Has anyone had experience with the DDoS protection services offered by CloudFlare, who can say a word or two regarding any effects this may have on SEO? Thanks
Intermediate & Advanced SEO | | masterfish1 -
Iframe redirect bad for SEO?
Hi, I have a website (http://www.blowingminds.de) wich I put a spreadshirt shop into via iframe. The thing is I am not sure on how the iframe effects my SEO? Can I just optimise the main domain for search? Well I want the spreadshirt shop to be found under the domain name (www.blowingminds.de) but the only real way to do it is by implementing an iframe because each spreadshirt shop has its own subdomain eg.: blowingminds.spreadshirt.de but the only real way to do it is via iframe, as they do not offer a complete domain redirect. (Or have I overseen some other way?) I hope you guys can help me on this one 🙂 Thanks in advance. Malte
Intermediate & Advanced SEO | | wellbo1 -
Does capitalization matter for SEO?
Two places capitalization comes into play: (1) on-page use (title, h1, body text, img alt text, etc) (2) external anchor text I didn't think it mattered from Google's point of view for on-page usage (is this correct?) but I notice that OpenSiteExplorer' s 'anchor text distribution' tab shows different counts for the same keyword if it's capitalized in different ways (eg seomoz.org is listed separate from SEOmoz.org). Is that just OSE or does Google treat the keyword/phrase different based on its capitalization, too? And if so, then should I be creating external links to my site with the 'regular' and 'Capitalized' versions of my key phrases?
Intermediate & Advanced SEO | | scanlin1