"Hidden text is one of the oldest tricks in the SEO handbook. If you’re hoping hidden text will somehow boost your SEO efforts, you’ll quickly discover this outdated tactic is ineffective."
Yes! H1 tag is one of the biggest and most important tags on your page that helps you better rank your website. It basically acts as a headline that is crawled by Google after the title.
When Google crawls each page of the website, search engine spiders identify the information that is enclosed in the heading tags, i.e. (h1, h2,h3). It will help the readers know what your page is all about and help the users navigate the page. So, make sure the content for the h1 tag is engaging as it will help you boost your SEO.
Hidden H1 tag can hurt SEO because of H1 tag is the good spot of optimizing a webpage for a keyword. You can reduce the size of the text of the H1 tag.
I did the same thing for a while and apparently if it served at the time even after I deleted it and tried to adapt it better, on my website you could see the keyword very clear using different tags, h1, h2, h3...
"Hidden text is one of the oldest tricks in the SEO handbook. If you’re hoping hidden text will somehow boost your SEO efforts, you’ll quickly discover this outdated tactic is ineffective."