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
-
WordPress Sub-directory for SEO
Hi There, I'm working on a WordPress site that includes a premium content blog with approx 900 posts. As part of the project, those 900 posts and other membership functionality will be moved from the main site to another site built specifically for content/membership. Ideally, we want the existing posts to remain on the root domain to avoid a loss in link juice/domain authority. We initially began setting up a WordPress Multisite using the sub-directory option. This allows for the main site to be at www.website.com and the secondary site to be at www.website.com/secondary. Unfortunately, the themes and plugins we need for the platform do not play nicely with WordPress Multisite, so we started seeking a new solution, and, discovered that a second instance of WordPress can be installed in a subdirectory on the server. This would give us the same subdirectory structure while bypassing WordPress Multisite and instead, having two separate single-site installs. Do you foresee any issues with this WordPress subdirectory install? Does Google care/know these are two separate WordPress installs and do we risk losing any link juice/domain authority?
Intermediate & Advanced SEO | | HimalayanInstitute0 -
Why is pagination SEO such a mystery in 2021?
Hi folks. I would like to discuss pagination. I use WordPress (Genesis, specifically). I ran my site through a site scan and it flagged an error which told me that my blog was producing duplicate meta descriptions because the blog is paginated - the same meta description from the blog page is being used on Page 2, Page 3 etc. I looked into this and the Internet is awash with many other people scratching around for a solution. My understanding is that using a canonical link on the first page is not a good idea, because it says to Google that only Page 1 of the blog is important. I also read an article that states Google no longer reads the Rel=Prev/Next code that could be used to tell Google to ignore the issue. So, what's the solution? Do I even need one? As a side-thought, it seems to me that pagination is, well, pretty useless. I mean, if my blog has 20 pages and I've worked hard to create content, who is going to click through to anywhere near page 20? Nobody. There has to be a smarter way for people on-site to access content. I would love your thoughts on all of this. Cheers.
Intermediate & Advanced SEO | | Nobody16165422281340 -
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 -
SEO for multiple languages [Arabic]
Hello all, I am currently managing a Marketplace that comes in two different languages: English & Arabic. The English website is, fortunately, doing quite well in terms of SEO performances but, not the Arabic one. The website has two kinds of content: Static content: controlled by me. It includes menu items, navigation, static pages etc which is properly translated among the two languages User-uploaded content: It includes ads/news posted by the user which may not be translated to Arabic if they chose not to do it. Now if somebody goes to the Arabic website and check a news item that doesn't have an Arabic translation, it will show the English title. I am assuming, serving content in a different language that is specified in the hreflang is a straight no, right?
Intermediate & Advanced SEO | | MozammilStorat0 -
How important is admin-ajax.php?
Hi there! It's been a long time since I last did a technical audit of a site. I've currently playing with the 'fetch as google' tool to find out if we're blocking anything vital. The site is based on Wordpress, and after a recent hacking incident, a previous SEO moved the login portal from domain.com/wp-admin/ to domain.com/pr3ss/wp-admin/ - to stop people finding it. Fair enough. But they then updated the robots.txt file to look like this: User-agent: *
Intermediate & Advanced SEO | | Muhammad-Isap
Disallow: /pr3ss/wp-admin/ Now, some pages are trying to draw on theme elements like: http://www.domain.com/pr3ss/wp-admin/admin-ajax.php
http://www.domain.com/pr3ss/wp-content/themes/bestpracticegroup/images/column_wrapper_bg.png And are naturally being blocked (not that this seems to affect the way pages are rendering in Google's eyes) A good SEO friend of mine has suggested allowing the theme folder, and any sub folders where this becomes an issue. What are your thoughts? Is it even worth disallowing the /pr3ss/wp-admin/ path? Cheers guys and gals! All the best, John. I've found a couple of the theme's0 -
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 -
Domain Alias SEO
We have 5 domain alias of our existing sites
Intermediate & Advanced SEO | | unibiz
All 5 domain alias are domain alias of our main site. It means, all domain alias will have exactly same site and contents
Like Main domain: www.mywebsite.com
DomainAlias: www.myproduct.com, www.myproduct2.com, www.myproduc3.com
And if anybody will open our site www.myproduct.com, it will open same website which I have in primary site what can i do to rank all website without any penalty....i s there any way? This is domain alias of in hosting industry Thanks0 -
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