Observed arrival · 2026-10-20

Checkthiscookie: a bookmarklet for browser storage

checkthiscookie.com Visit website

Editorial interest 73/100 Selection signal · not a rating of the site

A bookmarklet inspects script-accessible cookies and browser storage on a website, then displays the findings in a report with CSV export.

Landing page captured for the 2026-10-20 issue.

For: People inspecting cookies and storage on websites
Worth noticing: It cannot read HttpOnly cookies, Secure attributes, or exact expiration dates; CSV exports contain full values.

Field notes

The report separates cookies, Local Storage, and Session Storage, and offers search, type filters, and CSV export. Its field guide explains what each column represents and notes that browser sandboxing prevents the bookmarklet from reading HttpOnly flags, Secure attributes, and exact expiration dates. The page also says audit reports are processed in the browser rather than uploaded; exported CSVs contain full stored values.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

◎NicheUnusually specific use

One card from the complete issue

Cicada Prime

344,979 arrived 1,000 judged 983 catalogued Enter the complete issue