Free H1 Checker

H1 tag SEO: what the heading is for, and why the one you see is not always the one you serve.

An H1 is one line of markup, and most sites get it right by accident. The ones that get it wrong usually do so in a template, which means every page inherits the same mistake. Here is what the tag does, what Google has said about it, and where it goes missing.

What an H1 tag is

HTML has six heading levels, <h1> to <h6>, and the H1 is the top one: the heading that names the whole page, the way a chapter title names a chapter. Everything below it is meant to be a subsection of it. The h1 tag says nothing about size or weight; a browser's default styling makes it large, and a stylesheet can make it any size at all. That separation is the root of most H1 problems. A line can look like the page's headline without being an H1, and an H1 can be tiny, hidden or wrapped around a logo.

The convention is one H1 per page, stating what that page is about. On an article it is the article's headline. On a service page it is the service, ideally with the place if the firm is local: "Estate Planning Attorney in Austin" rather than "Welcome" or the firm's name.

What Google has actually said

Google's documentation on title links lists heading elements, such as the H1, among the sources it may draw on when it rewrites the blue link in a result, alongside the title tag and the main visual headline on the page. So the H1 is one of the lines Google reads to decide what a page is called. Its representatives have also been plain that the H1 is useful rather than decisive. In 2019 John Mueller said a site will rank fine with no H1 or with five, and that Google's systems work with the HTML as they find it, whether that is one H1, several, or styled text with no heading markup at all.

That is a reason to keep the H1 honest, not to ignore it. A clear H1 helps a reader confirm they landed on the right page, helps a screen reader announce it, and gives every engine one more consistent statement of the topic. What it does not do is carry a ranking weight you can measure, and any tool that tells you a new H1 will lift your rankings by some amount is guessing.

The H1 and the title tag are two different jobs

The <title> lives in the page's head. It is what shows in the browser tab and what search results usually print as the link, so it is written for someone deciding whether to click, often with the brand at the end. The H1 lives on the page, and it is written for someone who already clicked. The two should agree on the topic. They do not need to match, and an identical pair wastes one of them: the title can carry the brand and the search phrasing, while the H1 reads naturally as a headline.

This checker's third check catches the identical case only. It lowercases both and collapses spaces, then compares; "Pricing | Verand" against an H1 of "Pricing" passes, and so does a near copy that differs by a word. It is a nudge, which is also how Verand's own audit weighs it: a low-severity finding marked "consider".

Multiple H1 tags: an error or a warning?

HTML allows more than one H1, and Google has said repeatedly that several H1s on a page do not cause a problem for Search. Verand still flags it, and so do most checkers, for reasons that have nothing to do with a penalty. A page with five H1s has five competing answers to "what is this page?", a screen reader user jumping to the top-level heading lands on whichever comes first, and a second H1 is very often an accident rather than a decision. Treat the result as a warning to look at, not an emergency.

The accidents follow a few patterns. A theme wraps the logo in an H1 on every page. A page builder's "heading" widget defaults to H1, so every styled section title becomes one. Or a page embeds components that were built as standalone screens, each carrying its own heading. That last one is how this tool's own saved run for verand.ai fails: on 27 September 2026 the homepage embedded replicas of product screens, each of which brought its H1 with it, and the served HTML counted ten.

A missing H1 tag, when you can see a heading

The most confusing result is "Missing H1" on a page with an obvious big headline. The checker is reading the markup, not the pixels, so one of these is usually true:

• The headline is styled text. A <div> or <p> with a large font class looks like a heading and is not one. Some page builders do this by default for "title" blocks.
• The headline is an H2. Common when a template gives the H1 to the site name and the designer used H2 for the page title to match the look.
• The H1 holds only an image. A logo in an H1 has no heading text for any tool to read. This checker strips tags and reads what is left, and alt text is an attribute, so an image-only H1 reads as empty.
• The H1 is added by JavaScript. Sites built on client-side frameworks or some drag-and-drop builders write the heading into the page after it loads. The served HTML, the first thing any crawler receives, has no H1 in it at all. Google can render JavaScript, many other crawlers and AI fetchers do not, and this checker deliberately reads what the server sends, so it reports what the least capable reader sees.

Content management systems usually handle the H1 for you: on most WordPress themes the post or page title is output as the H1, which is why adding a second H1 inside the editor's body creates a duplicate. If you are unsure which of the above applies, view the page source (not the inspector, which shows the page after scripts run) and search for <h1.

Screen readers start at the H1

Headings are how many screen reader users move through a page. The common screen readers can list every heading or jump straight to a level, and the H1 is where that navigation begins. A missing H1 leaves no top-level landmark; a logo H1 announces the firm's name on every page instead of the page's subject; an H1 hidden by CSS may be skipped or read out of context. Marking real headings up as headings is part of WCAG's "Info and Relationships" criterion (1.3.1), and heading structure is among the easiest defects for an automated accessibility scan to spot. The full outline, H2 to H6, is what the Header Tag Checker reads.

The H1 on a regulated firm's page

The H1 is the largest and most prominent claim on the page, and that matters when advertising rules apply to you. Words like "best", "top", "leading", "expert" or "specialist" in a headline are exactly the kind of language that attorney, financial adviser and medical practice advertising rules scrutinise; the ABA Model Rules, for example, restrict a lawyer from stating or implying that they are a specialist unless an accredited organization has granted that status (Rule 7.2(c)), and many state bars add their own limits. A plain, factual H1 such as "Estate Planning Attorney in Austin" names the service and the place, reads well to Google and to a reader, and is far easier for a compliance reviewer to sign off. This page is not legal advice: if a headline makes a claim, check it with whoever reviews your marketing. The Attorney Advertising Rules Checker and the Marketing Compliance Checker flag that kind of language for review.

Keywords, length and other H1 habits

• Put the main phrase in, once. An H1 that names the topic in the words a searcher would use is simply accurate. Repeating the phrase, or stacking variants separated by pipes, reads as stuffing to a person and adds nothing for an engine.
• There is no official length limit. Google publishes no character limit for an H1. Long H1s wrap onto several lines on a phone, which is a design problem rather than an SEO one; write it as long as the topic needs and no longer.
• One H1 per template, not per widget. Decide which element in each template carries the H1, usually the page or post title, and make every other heading an H2 or lower.
• Do not hide it. An H1 moved off screen or hidden with CSS so the design can show an image instead is still counted by this checker and may be treated differently by engines and assistive technology. Show the heading.
• Re-check after a redesign. Theme updates and new page-builder sections are where extra and missing H1s appear, and nothing in your analytics will tell you.