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 -
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 -
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 value of affiliate external links
There are websites that have linked to my site. Whenever I hover over link I see my direct website URL and I am not seeing "no follow" when viewing source code so I assume these are passing link juice. However when I click on link it directs briefly to shareasale (affiliate account) in web address bar, but then quickly directs back to my website URL as directed. I was curious if these good links I am acquiring truly pass juice or since they briefly pass through an affiliate site if that cancels or dilutes the link juice. Also I am noticing when inspecting element that after the HREF it says class="external-link" I am just not sure if my link building efforts are being ruined by having an affiliate account running.I did not tell them I had one. I guess they are searching to see that I have one and trying to make a few extra commission dollars.
Intermediate & Advanced SEO | | nchachula0 -
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 -
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 -
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 -
Migrating online store to subdomain using shopify and effects on seo and energy down the road for seo
I'm looking for some clarity... Looking at using Shopify for an existing online store that we have to migrate. Setting up the store with shopify means we will be using a subdomain such as shop.mywebsite.com instead of mywebsite.com/shop. The following are points to consider when responding The client currently has an online store, however it's a proprietary shopping store and CMS that has since gone defunct and they need to migrate to an alternative in order to survive online against new CMS systems that allow the site and its content to be better optimized. There is a lot of existing SEO done on the current site that we don't want to loose PR on. There is roughly 2000 products Client has a fixed budget, dealing with checkout issues, custom work and various other "bugs" seems to be easier controlled with Shopify...thus budget can be used more on content/strategy and migration We want to run the main site in Wordpress and are wanting to use Shopify since it supports a gateway, has great features and seems like it would allow us to get more bang for the buck and can focus more on the main site and content strategy and drive traffic to the subdomain store if needed Or main concern is the effort of migrating 2000+ products to shopify and the traffic and PR it gives the current site will have a negative effect on the main domain itself. Should we really be considering this path? The domain is diveidc.com One main benefit to the subdomain is the ability to clearly segment products from the service portion of the site in the analytics and focus 2 clear strategies and track it in a very defined manner. We're really on the fence with this...any thoughts are welcome.
Intermediate & Advanced SEO | | MAGNUMCreative0