W3C Validation in 2023

So what? It’s 2023 and modern browsers ignore WC3 Validation. Checkout Apple, Amazon, eBay, Pinegrow.com, etc…

What matters is attaining 100% and I can’t think of any better metric.

Looking forward to seeing more sites being added here whether they are built with stacks or any other web builder.

Really, how then do they parse code if they don’t know what valid code is?

Poor code massively increases the liklihood that your site will break. Depending on the severity of the poor code it can damage your SEO as the indexer cannot read your site. It will also impact any other website that connects to your site such as Social Media or any other services you are running, because they cannot understand your code.

I appreciate that some errors are minor, but some aren’t and a validator is a good way to find this out. Although browsers will have their own rules, in general they have to follow some validation or the browser won’t know how to parse the code. W3C gives out that standard and deviating from this may well lead you into problems.

Bottomline: If your code is bad it will impact your sites connectivity to the rest of the internet.

You are falling into the trap that something flagged by a HTML checker from the last decade, equals bad code.

As Stuart commented, what is flagged as an Error in your example is incredibly minor / insignificant today and very easy for someone to miss interpret. A blank ID is ignored by modern browsers. Otherwise Google PageSpeed Insights / Lighthouse would not be able to report a 100% for all 4 areas for both mobile and desktop.

If you believe that a Blank ID causes a problem “with bad code” then please explain exactly why.

Can I suggest you start another thread about W3C Validation?

I said nothing about Blank IDs. I highlighted that invalid code will impact your website.

Anyway apologies for taking the thread off on a tangent.

That is what was being reported over and over again, by the Validator report you link to. I assumed you had read the report.

The report was reporting the next blank ID was a duplicate of the previous blank ID, and on and on.

But that’s not all it reported. You know what they say about assuming…

The point is that the validator has a place, because it allows you to see what’s not valid. Some you can safely ignore, but others you cannot.

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I think if you are in the business of creating websites for clients, or developing tools for building them, it’s worth considering and aiming for a good report.


I agree and it is impressive when those “in the business of creating website” sweat the details and address everything thats flagged up and address each item. Like Blocs for example:)

HTML validation results are very easy to take out of context and out of proportion, leading someone to worry that there is a problem when there isn’t a problem.

Equally you can get a 100% Lighthouse score using only webP images and then the site will fail for those who can’t see any images on their system.


I have been using W3CValidator recently and actually found it very useful to find buttons and links, etc. that are badly formed or have missing content.

Also it detects errors that are otherwise difficult to catch where simple typos in places like attributes, can exist. For example I had added "loading="lazy" instead of loading="lazy" in an image that was copying and pasting throughout a page. Those pesky little Stacks boxes can make this stuff difficult to see.

I would say it is well worth checking your site to find such issues.

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