Film Fingerprint

Your film ratings, taken apart

Privacy

Your exports are read in your browser and stay there. The site has no accounts, no cookies and no ads. It counts visits with Cloudflare Web Analytics, which sets no cookies and never sees your films. To fill in what your export leaves out, it asks this site's server about films, by IMDb ID or by title, without your ratings. This page sets out exactly what goes where.

Last updated 4 November 2026.

What stays on your device

The site keeps these in your browser's storage, on your device. They aren't sent anywhere:

A friend's export on the Compare page isn't kept at all, and is gone when you close the page.

What's sent to this site's server

Your export doesn't have everything the report shows. To fill in TMDB scores, posters, genres, directors and where films are streaming, the page asks this site's server, which asks TMDB (The Movie Database). The server holds the key TMDB requires, so your browser never talks to TMDB's API itself. It sends:

Your scores, dates, reviews, tags and Letterboxd or IMDb username aren't sent. The server keeps TMDB's answers for up to a week to share between visitors, since a film's details are the same for everyone, but it doesn't keep who asked.

Catching up from Letterboxd

If you use Check for new entries on the Your data page, your Letterboxd username goes to this site's server, which reads your public diary feed from Letterboxd and passes it back. Letterboxd sees the request coming from the server, not from you. The server keeps the feed for 15 minutes, so checking twice in a row doesn't ask Letterboxd again.

Sending feedback

If you use Send feedback, the server emails your message to the site's owner, with the page you were on, your browser's name and version, the last error the page hit, and your email address if you gave one. It goes through Resend, an email service, and arrives in the owner's inbox. The site doesn't store it. To stop one person flooding the inbox, your IP address is kept for an hour to count how many messages it has sent.

When something goes wrong

If the page hits an error in its own code, it tells this site's server, which emails the owner so it can be fixed. The report has the error's message (with anything in double quotes taken out, since some browsers quote what they were reading), the place in the site's code it happened, which page of the report you were on, and your browser's name and version. Nothing from your exports, ratings or films goes with it. The same error is emailed at most once a day, however many people hit it, and the site doesn't store reports. To limit how many one person can send, your IP address is kept for an hour to count them.

Counting visits

The site uses Cloudflare Web Analytics, so the owner can see how many people use it and whether pages load quickly. On each page, a small script from Cloudflare (static.cloudflareinsights.com) reports to Cloudflare:

It sets no cookies and stores nothing in your browser. The owner sees only totals, such as how many visits came from which countries in which browsers, never one person's visits. Nothing from your exports, ratings or films goes with it. A content blocker that blocks the script just leaves your visit uncounted.

Who else sees your visit

Removing your data

Everything the site keeps is in your browser, so you can remove it yourself:

There's nothing to remove on the server, since it doesn't keep your exports. To have a feedback message deleted from the owner's inbox, send feedback asking for it.

Questions

Use Send feedback at the bottom of the site. If this page changes, the date at the top will change with it.