ANEARST · 2026-09-21 · 4 min
Website monitoring with a visual diff
Uptime checks tell you the server answered. A still tells you the header moved.
HTTP 200 can still be a cookie wall, a broken font, or a missing product image. A scheduled capture plus a compare is a different class of signal.
ANEARST stores URL, last checked, difference, and the next planned check. Run now captures immediately. Recurring ticks use the interval you selected.
Keep the same viewport and cleanup flags between runs. Otherwise you are measuring configuration drift, not the site.
