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:Â 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:Â http://www.w3.org/TR/html5-diff/#doctype
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
-
Does cache-control : private hurt SEO?
Hi, I recently found I can no longer view our web pages in Google's cache. I get 404 errors. http://webcache.googleusercontent.com/search?q=cache%3Ashop.nordstrom.com%2Fc%2Fwomens-shoes&rlz=1C1GGRV_enUS751US751&oq=cache%3Ashop.nordstrom.com%2Fc%2Fwomens-shoes&aqs=chrome..69i57j69i58.3575j0j4&sourceid=chrome&ie=UTF-8 I did a fetch and render in Search Console and found our header includes a "cache-control: private" entry. The 404's started happening recently. Would this response be the culprit? If Google cannot cache the website, is this bad for SEO? On the surface of it, it sounds bad.
Intermediate & Advanced SEO | | shop.nordstrom0 -
Onsite SEO vs Offsite SEO
Hey I know the importance of both onsite & offsite, primarily with regard to outreach/content/social. One thing I am trying to determine at the moment, is how much do I invest in offsite. My current focus is to improve our onpage content on product pages, which is taking some time as we have a small team. But I also know our backlinks need to improve. I'm just struggling on where to spend my time. Finish the onsite stuff by section first, or try to do a bit of both onsite/offsite at the same time?
Intermediate & Advanced SEO | | BeckyKey1 -
Is tabbed content bad for SEO?
I work for a Theater show listings and ticketing website. In our show listings pages (e.g. http://www.theatermania.com/broadway/this-is-our-youth_302998/) we split our content into separate tabs (overview, pricing and show dates, cast, and video). Are we shooting ourselves in the foot by separating the content? Are we better served with keeping it all in a single page? Thanks so much!
Intermediate & Advanced SEO | | TheaterMania0 -
SEO Advice for Angular JS
We are changing our homepage (and gradually the rest of the site) to Angular JS.
Intermediate & Advanced SEO | | theLotter
In order not to lose anything in terms of SEO we are implementing Hashbangs + escaped fragment snapshots. Are there any other SEO considerations you think we should have and/or additional elements that we could add to the page to improve it in terms of SEO?0 -
How important are sitemap errors?
If there aren't any crawling / indexing issues with your site, how important do thing sitemap errors are? Do you work to always fix all errors? I know here:Â http://www.seomoz.org/blog/bings-duane-forrester-on-webmaster-tools-metrics-and-sitemap-quality-thresholds Duane Forrester mentions that sites with many 302's 301's will be punished--does any one know Googe's take on this?
Intermediate & Advanced SEO | | nicole.healthline0 -
If you have an unlimited SEO budget, what would you do?
Here's a bit of background information: I've achieved the targets and is now being offered what is essentially an unlimited budget. I have a nice list of ideas but thought I would the brilliant people here at the SEOMOZ community what they would do. So as to promote as much response as possible, I'm going to keep my list to myself for now. And by "SEO", I mean I can do things like content strategy, blogging, infographics, etc. Shoot away!
Intermediate & Advanced SEO | | andrep0 -
Do widgets and gadgets affect SEO?
I have added a number of widgets and gadgets to my site that I suspect act like Iframes. If true do these widgets and gadgets and the content that they are linked to help or hurt my site from an SEO perspective? Examples are facebook gadget, wordpress blidget, weather gadget, google maps widget.
Intermediate & Advanced SEO | | casper4340 -
Link Age as SEO factor?
Hi Guys
Intermediate & Advanced SEO | | VividLime
I have a client who ranks well within a competitive sector of the travel industry. They are planning CMS move which will involve changing from .cfm to .aspx We will be doing the standard redirects etc However Matt's statement here on 301 redirects got me thinking
http://www.youtube.com/watch?v=zW5UL3lzBOA&t=0m24s He says that basically you loose a bit of page rank when you do a 301 redirect. Now, we will be potentially redirecting 1000s of links and my thinking is 'a lot of a little, adds up to a lot'  In other words, 1000s of redirects may have a big enough impact to loose some rankings in a very competitive and aggressive space. So recommended that we contact the sites who has the link highest value and ask them to manually change the links from cfm to aspx. This will then mean that there are no loss value as with a 301 redirect. -But now I have another dilemma which I'm unsure about. So the main question:
Is link age factor in rankings ? If I Â update any links, this will make said link new to Google, so if link age is a factor, would this also lessen the value passed initially?0