All HTML check processing is performed locally, so you can use it with confidence. 2025/08/30 Update!
*If you choose "Check from URL", PHP will only be used when fetching the source (no data is stored at all).
🔥 We’re currently testing a new version that checks tags with even greater accuracy. Please try it below.
Switch to the new version (you can switch back anytime)
*If you choose "Check from URL", PHP will only be used when fetching the source (no data is stored at all).
🔥 We’re currently testing a new version that checks tags with even greater accuracy. Please try it below.
Switch to the new version (you can switch back anytime)