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
-
How important is the file extension in the URL for images?
I know that descriptive image file names are important for SEO. But how important is it to include .png, .jpg, .gif (or whatever file extension) in the url path? i.e. https://example.com/images/golden-retriever vs. https://example.com/images/golden-retriever.jpg Furthermore, since you can set the filename in the Content-Disposition response header, is there any need to include the descriptive filename in the URL path? Since I'm pulling most of our images from a database, it'd be much simpler to not care about simulating a filename, and just reference an image id in my templates. Example: 1. Browser requests GET /images/123456
Intermediate & Advanced SEO | | dsbud
2. Server responds with image setting both Content-Disposition, and Link (canonical) headers Content-Disposition: inline; filename="golden-retriever"
Link: <https: 123456="" example.com="" images="">; rel="canonical"</https:>1 -
Do Page Anchors Affect SEO?
Hi everyone, I've been researching for the past hour and I cannot find a definitive answer anywhere! Can someone tell me if page anchors affect SEO at all? I have a client that has 9 page anchors on one landing page on their website - which means if you were to scroll through their website, the page is really really long! I always thought that by using page anchors instead of sending users through to a dedicated landing page, ranking for those keywords makes it harder because a search spider will read all the content on that landing page and not know how to rank for individual keywords? Am I wrong? The client in particular sells furniture, so on their landing page they have page anchors that jump the user down to "tables" or "chairs" or "lighting" for example. You can then click on one of the product images listed in that section of the page anchor and go through to an individual product page. Can anyone shed any light on this? Thanks!
Intermediate & Advanced SEO | | Virginia-Girtz1 -
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 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 -
How important is the number of indexed pages?
I'm considering making a change to using AJAX filtered navigation on my e-commerce site. If I do this, the user experience will be significantly improved but the number of pages that Google finds on my site will go down significantly (in the 10,000's). It feels to me like our filtered navigation has grown out of control and we spend too much time worrying about the url structure of it - in some ways it's paralyzing us. I'd like to be able to focus on pages that matter (explicit Category and Sub-Category) pages and then just let ajax take care of filtering products below these levels. For customer usability this is smart. From the perspective of manageable code and long term design this also seems very smart -we can't continue to worry so much about filtered navigation. My concern is that losing so many indexed pages will have a large negative effect (however, we will reduce duplicate content and be able provide much better category and sub-category pages). We probably should have thought about this a year ago before Google indexed everything :-). Does anybody have any experience with this or insight on what to do? Thanks, -Jason
Intermediate & Advanced SEO | | cre80 -
Domain expiration and seo
My domain name is free with my service with yahoo but it expires every year and gets extended automatically as I continue service, how does this impact my seo efforts? I've heard that the search engines prefer sites to expire in 3 years or more? Is this a fact?
Intermediate & Advanced SEO | | bronxpad0 -
What should I cover in a SEO proposal ?
What should I cover in a SEO proposal? Is there any sample SEO Proposal template in SEOMoz?
Intermediate & Advanced SEO | | kashyaplakkad1 -
Redirect a subdomain to a subdirectory for SEO purposes.
Hi, I have a site on wordpress and I want to add eCommerce to it. We want to go with Shopify but Shopify only allows to host their platform on a subdomain. I like to have it on a subdorectory, so my question is: Would it make sense to redirect the whole subdomain to a subdirectory (move everything from shop.domain.com to domain.com/shop) for SEO purposes? Would Google see these pages as if they were part of the main domain? Thanks! Julien
Intermediate & Advanced SEO | | julienraby0