Good content doesn't help if search engines are being told, deliberately or accidentally, not to crawl part of a site — or if the site serves the wrong language version to the wrong audience, or renders badly on the device most people are actually using to search.
Robots.txt: a small file with outsized consequences
A single misplaced Disallow: / in a robots.txt file can quietly block an entire site from search engines with no visible error anywhere. The Robots.txt Generator builds the file's syntax correctly, which matters because the format is stricter than it looks.
Hreflang: telling search engines which audience gets which page
Sites serving multiple languages or regions need to tell search engines which version to show to which audience — without hreflang tags, search engines are left guessing, and sometimes guess wrong. The Hreflang Tag Generator handles the specific, easy-to-typo syntax these tags require.
Mobile-friendliness is no longer optional
Most search traffic now comes from mobile devices, and a page that's hard to use on a phone — tiny tap targets, text that requires zooming, content wider than the viewport — creates a real problem beyond just rankings. The Mobile Friendly Test checks for these issues directly.
All three are quick, one-time checks worth running whenever a site's structure changes — new pages, new languages, or a redesign.
