• Why does URL fetching sometimes fail?

    Invalid URLs: The URL could point to a file instead of a webpage, or the page might not exist

    Misconfigured Website: A website/webpage could be misconfigured and throw HTTP error codes

    Website Anti-Bot Measures: A service might recognize us as a bot and block access

    Anti-Bot Challenges: CAPTCHAs and/or JS challenges

    Timeouts: If a page is taking too long to fetch, we might abort getting its contents

    Network and Resource Issues: Unstable network connections

  • How is the score calculated?

    Our platform offers an extensive set of tests that verify HTML meta tags, OpenGraph & Twitter Card markup, and other metadata standards. These checks include multiple priority levels, with many featuring conditional requirements based on page context. Scores are calculated by running all relevant tests and tallying successful results.

    Please note: Scores may periodically change as we add new checks and refine existing ones. The system is designed as a practical guide rather than an absolute measure, encouraging optimization through the suggestions provided in your results.

  • What does the name mean?

    t4gs → tags → HTML tags :]