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
-
Server update to ipv6, SEO consequences
Hi all, I read the article from 2014 on MOZ regarding ipv6.
Intermediate & Advanced SEO | | AdenaSEO
https://moz.com/blog/ipv6-cblocks-and-seo Our technical department is about to change our server from ipv4 to ipv6.
Are there any things we have to consider regarding SEO / rankings / duplicate content etc.. with this transition? I hope you have a little spare time to answer this question. Regards,
Tom1 -
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 -
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 -
Are backlinks the most important factor in SEO?
I have had an agency state that "Backlinks are the most important factor in SEO". That is how they are justifying their strategy of approaching bloggers. I believe there are a lot more factors than that including Target Market definition, Keyword identification an build content based on these factors. What's everyone's thoughts?
Intermediate & Advanced SEO | | AndySalmons0 -
Does having a ? on the end of your URL affect your SEO?
I have some redirects that were done with at "?" at the end of the URL to include google coding (i.e. you click on an adwords link and the google coding follows the redirected link). When there is not coding to follow the link just appears as "filename.html?". Will that affect us negatively SEO-wise? Thank you.
Intermediate & Advanced SEO | | RoxBrock1 -
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 -
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: 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 -
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