Is it necessary to have at least one `H1` in any webpage?

Is it necessary to have at开发者_高级运维 least one H1 in any web page? in terms of accessibility, semantics and SEO.

---

It is not necssary. Ask the same question about other tags, is it necessary to have a < H2 > tag?

That being said, the < h1 > tag is meant as the main heading, so if styled correctly should add a main focus point to your page.

---

Yeah It's not necessary however it's not unnecessary. I mean technically its not necessary to have img tags or a tags for that matter. And if you wan't to be really technical, you don't even NEED html tags most browsers will still render the page, but that's extremely bad practice. H1 tags cab be useful actually, specificially with css, as an additional p tag.

---

It is not necessary to have at least one but it is necessary as advocated by seo guys not to put more than one <h1> tag.

---

only for seo. it is THOUGHT (for high rankings in google) that the TEXT LINK TO a page should be found in the <h1></h1> AND in the <title></title> and should come up a couple of time in the text.