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
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
-
Product Schema Markup for All Products
Hi Team, Google search console used to allow you to use their structured data markup helperhttps://www.google.com/webmasters/markup-helper/u/0/ to markup multiple product pages at once that were similar. I do not see this feature anymore with the new search console. Does anyone have a recommendation for marking up multiple product pages without having to have schema markup firing in GTM for each product page?
Technical SEO | | agrier0 -
Google is indexing bad URLS
Hi All, The site I am working on is built on Wordpress. The plugin Revolution Slider was downloaded. While no longer utilized, it still remained on the site for some time. This plugin began creating hundreds of URLs containing nothing but code on the page. I noticed these URLs were being indexed by Google. The URLs follow the structure: www.mysite.com/wp-content/uploads/revslider/templates/this-part-changes/ I have done the following to prevent these URLs from being created & indexed: 1. Added a directive in my Htaccess to 404 all of these URLs 2. Blocked /wp-content/uploads/revslider/ in my robots.txt 3. Manually de-inedex each URL using the GSC tool 4. Deleted the plugin However, new URLs still appear in Google's index, despite being blocked by robots.txt and resolving to a 404. Can anyone suggest any next steps? I Thanks!
Technical SEO | | Tom3_150 -
Home Page Ranking Instead of Service Pages
Hi everyone! I've noticed that many of our clients have pages addressing specific queries related to specific services on their websites, but that the Home Page is increasingly showing as the "ranking" page. For example, a plastic surgeon we work with has a page specifically talking about his breast augmentation procedure for Miami, FL but instead of THAT page showing in the search results, Google is using his home page. Noticing this across the board. Any insights? Should we still be optimizing these specific service pages? Should I be spending time trying to make sure Google ranks the page specifically addressing that query because it SHOULD perform better? Thanks for the help. Confused SEO :/, Ricky Shockley
Technical SEO | | RickyShockley0 -
Schema Markup Errors - Priority or Not?
Greetings All... I've been digging through the search console on a few of my sites and I've been noticing quite a few structured data errors. Most of the errors are related to: hcard, hentry and hatom. Most of them are missing author & entry-title, while the other one is missing: fn. I recently saw an article on SEL about Google's focus on spammy mark-up. The sites I use are built and managed by vendors, so I would have to impress upon them the impact of these errors and have them prioritize, then fix them. My question is whether or not this should be prioritized? Should I have them correct these errors sooner than later or can I take a phased approach? I haven't noticed any loss in traffic or anything like that, I'm more focused on what negative impact a "phased approach" could have. Any thoughts?
Technical SEO | | AfroSEO0 -
Templates for Meta Description, Good or Bad?
Hello, We have a website where users can browse photos of different categories. For each photo we are using a meta description template such as: Are you looking for a nice and cool photo? [Photo name] is the photo which might be of interest to you. And in the keywords tags we are using: [Photo name] photos, [Photo name] free photos, [Photo name] best photos. I'm wondering, is this any safe method? it's very difficult to write a manual description when you have 3,000+ photos in the database. Thanks!
Technical SEO | | TheSEOGuy10 -
Does anyone use pingler and is it any good
Hi, i have joined pingler and pay per month to use it but i have not seen any difference with traffic or google rankings and i would like to know if anyone else is using the paid version of pingler.com and if they find it a good service
Technical SEO | | ClaireH-1848860 -
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 -
Is it bad (black hat) to have an H1 text as a text indent?
Is it bad practice to use a text indent through CSS for H1 text on a homepage(basically hiding h1 text)? I'm just trying to compensate for the fact that some text that should really be in the h1 tag is actually an image.
Technical SEO | | inc.com1