An HTML element that marks the main heading of a webpage, used to indicate the primary topic to both search engines and users.
Search engines and users read it to understand the page's primary topic relative to other headings on the page.
01What it is and how it works
The H1 tag is an HTML element that marks the main heading of a webpage. It sits at the top of the page content hierarchy, above all other headings (H2, H3, etc.). Search engines like Google use the H1 tag as one of the strongest on-page signals for understanding what a page is about. When Google crawls a page, it reads the H1 tag first to get a quick summary of the topic. The H1 should clearly describe the page content and ideally match the page title or main keyword. It appears prominently on the page, usually in large text, helping users understand the page's purpose at a glance. Using more than one H1 tag per page is allowed in HTML5, but best practice is to use only one to avoid confusing search engines about the main topic.
An H1 tag is the biggest and most important heading on a page. It tells everyone what the page is about.
02What to do about it
This week, audit your key pages and make sure each has exactly one H1 tag. Check that the H1 text clearly describes the page content and includes the main keyword naturally. If your H1 is missing, empty, or stuffed with keywords, rewrite it to be clear and user-focused. Use your CMS or HTML editor to add or edit the H1 tag directly in the page content. Avoid copying the page title tag exactly; instead, write an H1 that reads naturally for users while still signaling the topic to search engines.
03How it is measured or noticed
You can check H1 tags using browser tools like Chrome DevTools by right-clicking the page and selecting Inspect, then looking for the H1 element in the HTML. SEO tools like Screaming Frog, Ahrefs, or SEMrush also crawl pages and report on H1 tags, flagging missing, duplicate, or overly long ones. Search Console does not directly report H1 issues, but poor H1 usage can contribute to low click-through rates or high bounce rates, which are indirect signals.
04Common mistakes
- Using multiple H1 tags on a single page, which can confuse search engines about the main topic
- Leaving the H1 tag empty or missing entirely, giving no heading signal to search engines
- Stuffing the H1 with keywords, making it unreadable for users
- Copying the page title tag word-for-word into the H1, which adds no value for users
- Using H1 tags for subheadings or styling instead of reserving them for the main page topic
05Limits and confusion
The H1 tag is not a guaranteed ranking factor on its own. Google uses hundreds of signals, and a well-written H1 is just one piece. It is often confused with the title tag, which appears in search results and browser tabs, while the H1 is visible on the page itself. Also, while HTML5 allows multiple H1 tags per page, most SEO professionals still recommend using one to keep the page structure clear. The H1 tag does not affect how AI search models interpret your brand, but it helps ensure your content is structured clearly for all systems.
06Worked example
For a blog post titled 'How to Choose the Best Running Shoes', the H1 tag should be: <h1>How to Choose the Best Running Shoes</h1>. This matches the page topic, includes the main keyword, and is readable for users.
Frequently asked questions
Does the H1 tag still matter for SEO rankings?
Yes, the H1 tag remains important for SEO as it signals the main topic to search engines, but it’s not a standalone ranking factor. Its impact depends on context and relevance.
Can I use multiple H1 tags on a single webpage?
No, it’s best practice to use only one H1 tag per page. Multiple H1s can confuse search engines and dilute the page’s focus.
What if my H1 tag doesn’t include keywords?
While keywords in the H1 can help, it’s not mandatory. The primary goal is to clearly state the page’s main topic for users and search engines.
How does the H1 tag differ from other heading tags like H2 or H3?
The H1 is the top-level heading, while H2 and H3 are subheadings. The H1 should represent the page’s core subject, whereas others organize content hierarchically.
What happens if a page has no H1 tag?
Search engines may struggle to understand the page’s main topic, potentially affecting visibility. Users also lose a clear navigation cue for the content.
Asked out loud
spoken, not typedThe same term in the words somebody uses speaking to an assistant rather than typing into a box — written from the situation, which is why each one carries the situation it came from.
You can check it via your browser’s DevTools. Just open the page, right-click, select Inspect, and look for the H1 element in the HTML.
The H1 is the main heading on a webpage. It tells both search engines and visitors what the page is about. Make sure it’s clear and relevant.
You should edit the HTML to ensure only one H1 tag exists. Avoid using multiple H1s as it can harm SEO and confuse users.