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.
The W3C Markup Validation Service - Good, Bad or Impartial?
-
Hi guys,
it seems that now days it is almost impossible to achieve 0 (Zero) Errors when testing a site via (The W3C Markup Validation Service - https://validator.w3.org). With analytic codes, pixels and all kind of tracking and social media scripts gunning it seems to be an unachievable task.
My questions to you fellow SEO'rs out there are 2:
1. How important and to what degree of effort do you go when you technically review a site and make the decision as to what needs to be fixed and what you shouldn't bother with.
2. How do you argue your corner when explaining to your clients that its impossible to active 100% validation.
*As a note i will say that i mostly refer to Wordpress driven sites.
would love ot hear your take.
Daniel.
-
I am my own client, so I can be as picky as a want, and I take care of the details that I feel are important.
I pay close attention to how the site is responding and rendering when I pretend that I am a visitor. I pay even more attention when a customer or visitor writes to me with a complaint. In my opinion, if the site is working great then all is good.

W3C validation seems to be of jugular importance to W3C evangelists. They will tell you that you will burn in Hell if you don't achieve it with flying colors. People who want to sell you their services will point at any fault that can be detected.
Practical people have a different opinion. I try to be as practical as possible.
-
I agree with Andy,
I use it as a guidance tool on any website i build. It serves a purpose, to check things are understood how they should be by a predetermined standard. But like any other automated tool it compares to set requirements that cannot always be met and cannot identify and ok these exceptions.
As long as you understand the error its pointing out and why its pointing it out, and know that despite this the code is rendering correctly and all outcomes are working as expected then there is no problem.
From an SEO stand point, aslong as google see's your site how you want it too i think it is a very very minor factor. Hell all of google returns errors of some variety.
-
Hi Yiannis,
I tend to add these in as an advisory to my clients because for the most part, and unless I see something specific, the results have absolutely no effect on SEO. If they wish to act on them, it is for their developers to handle.
I don't argue my corner really - never had to. I just tell them like it is - the site is rendering fine in everything and with no issues, so fix errors if you have the time and resources.
As I said, unless I spot something that is an actual problem, then it tends to just get bypassed.
-Andy
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
-
Inconsistency between content and structured data markup
Hi~ everyone What does Google think about the inconsistency between content and structured data markup? Is this kind of a cheating way ? Is hurt my SEO?
Technical SEO | | intern2020120 -
Using 2 cache plugin good or not?
Hi, Can anyone tell me - whether using 2 cache plugin helps or it cause any issue? Besides, when i used w3 cache plugin in WordPress its found like inline CSS issue to get cleared. So, i tried auto optimized but my website Soc prollect gone crashed in between while using the some. Is there any solution and can anyone tell me which plugin advantages to speed the site by removing java script and inline css at a time.
Technical SEO | | nazfazy0 -
Are on-site content carousel bad for SEO?
Hi, I didn't find an answer to my question in the Forum. I attached an example of content carousel, this is what I'm talking about. I understand that Google has no problem anymore with tabbed contents and accordeons (collapsible contents). But now I'm wondering about textual carousels. I'm not talking about an image slider, I'm talking about texts. Is text carousel harder to read for Google than plain text or tabs? Of course, i'm not talking about a carousel using Flash. Let's say the code is proper... Thanks for your help. spfra5
Technical SEO | | Alviau0 -
Exclude price in rich snippet markup
Our site has their prices hidden for non logged in users. Its a woocommerce built site and the rich snippet markups are added by woocommerce. I would like to remove the markup for the price becouse : 1, we would like our customers to register for prices. 2 i dont want to get penalties for not showing the same thing to visitors as to "google" .. Any help or thoughts on this one? Thanks / Jonas
Technical SEO | | knubbz0 -
Schema markup for products is missing "price": Is this bad?
Hey guys, So a current client of mine has an e-commerce shop with a few hundred products. They purposely choose to keep the prices off of their website, which is causing errors in Google Webmaster Tools. Basically the error shows: Error: Structured Data > Product (markup: schema.org) Error type: missing price 208 items with error Is this a huge deal? Or are we allowed to have non-numerical prices for schema ie. "call for quote"
Technical SEO | | tbinga1 -
How can I block incoming links from a bad web site ?
Hello all, We got a new client recently who had a warning from Google Webmasters tools for manual soft penalty. I did a lot of search and I found out one particular site that sounds roughly 100k links to one page and has been potentialy a high risk site. I wish to block those links from coming in to my site but their webmaster is nowhere to be seen and I do not want to use the disavow tool. Is there a way I can use code to our htaccess file or any other method? Would appreciate anyone's immediate response. Kind Regards
Technical SEO | | artdivision0 -
What are the potential SEO downsides of using a service like unbounce for content pages?
I'm thinking of using unbounce.com to create some content driven pages. Unbounce is simple, easy-to-use, and very easy for non-devs at my company to create variations on pages. I know they allow adding meta descriptions, title tags, etc and allow it to be indexable by Google, but I was wondering if there were any potential downsides to using unbounce as opposed to hosting it myself. Any help would be appreciated!
Technical SEO | | Seiyav0 -
Schema for Price Comparison Services - Good or Bad?
Hey guys, I was just wondering what the whole schema.org markup means for people that run search engines (i.e. for a niche, certain products) or price comparison engines in general. The intend behind schema.org was to help the engines better understand the pages content. Well, I guess such services don't necessarily want Google to understand that they're just another search engine (and thus might get thrown out of the index for polluting it with search result pages). I see two possible scenarios: either not implement them or implement them in a way that makes the site not look like an aggregator, i.e. by only marking up certain products with unique text. Any thoughts? Does the SEOmoz team has any advice on that? Best,
Technical SEO | | derderko
schuon0