Jul
24
2018

How Important Is an H1 Tag for SEO?

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Editor’s note: “Ask an SEO” is a weekly column by technical SEO expert Jenny Halasz. Come up with your hardest SEO question and fill out our form. You might see your answer in the next #AskanSEO post! 


Today’s Ask an SEO column answers a perennial SEO question:

How Important is the H1 tag in SEO?

Distinguishing Between the H1 and the Heading of a Page

H1 is a specific piece of HTML code that is wrapped around text. It was originally meant to display that text as the largest text on the page.

When Cascading Style Sheets (CSS) were developed, one of the things CSS allowed web developers to do was to take the standard H1 format and adjust it (color, typeface, font size) to match the rest of the page design. This meant that sometimes the H1 was no longer the largest text on the page.

When Google initially wrote their algorithm, CSS hadn’t even been mainstreamed yet. In fact, it was only registered with the World Wide Web Consortium (W3C) in March of 1998, shortly before Google was founded (September 1998), so it certainly was not in widespread use yet.

The bottom line is that H1s were (and still are, mostly) a good indicator of what the most important text on a page was.

The heading of a page is the same thing, just without the official H1 code wrapped around it.

Aboutness & Relevance

What’s ultimately the most important are the many signals (of which H1 is one) that make up a page and indicate what the topic of the page is (a.k.a., “aboutness”).

How relevant the page is to the searcher’s query ultimately determines whether it is listed in the results set, or search engine results page (SERP).

What’s key here is not if the page has an H1 tag, but the text that’s actually in that H1 tag.

Gaming the System

This is why the H1 takes secondary importance to the heading itself. While it’s great if the heading is wrapped in H1 code, it isn’t entirely necessary.

This is also why “gamed” headings – like small text at the top or bottom of a page wrapped in H1 and CSS to make it small – don’t work.

It’s why Google ignores the H1 entirely when it’s wrapped around an image (which is a non-standard use; an H1 is a text modifier).

And finally, it’s why Google can tell that if your heading is prominent on the page but not wrapped in the H1 tag, it’s still for all intents and purposes an H1.

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Other Uses of the H1 tag

Another important element the H1 serves is usability. It’s specifically usable for persons with visual impairments and people who use screen readers.

Almost every major screen reader has the capability to skip to the H1 tag on the page to tell that visitor what the page is about. If it’s missing, your site is definitely not as usable and accessible as it could be.

As Google places a higher importance than ever on usability, particularly mobile usability, this becomes more important.

H1 Tags & SEO

As you can see, the H1 tag is pretty important for SEO, usability, and accessibility.

Ideally, you should have one clearly marked on each page of your site.

Also be careful to ensure that the H1 reinforces the point of the page, and that there is only one H1.

If your site already has clear headings that are not coded as H1s? It’s unlikely that adding the H1 tag will make a significant difference to your overall SEO strategy.

But good SEO is all about checking boxes, so why not check this one now that you know it goes beyond just SEO?

More SEO Resources:

Have a question about SEO for Jenny? Fill out this form or use #AskAnSEO on social media.


Image Credits

Featured Image: Image by Paulo Bobita

Jenny Halasz

Jenny Halasz

President at JLH Marketing

Jenny Halasz is President and Founder of JLH Marketing, a marketing consultation firm focused on highly technical implementations, specific projects, … [Read full bio]

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