Use
DotCheck in Chrome as you browse, on Android when you share a file, and in reports anyone can verify.
Chrome Extension
AI scores on the page while you browse. No upload. No extra tab.
How do you know what's real online?
Colored dots are our answer. They mark images and video frames as you scroll. More green means more likely real; more red means more likely AI. Hover to see a percent.Tap the dot to see the percent. Try the sample below.
How it reads
The score is an NN% AI score. Green leans real. Red leans AI.
Live on the page
Most AI checkers interrupt you: leave the feed, upload a file, wait, come back. DotCheck extension scores images, video frames, and supported-language text live on the page so you stay in the tab you already opened. Same Google account as Check. Want to choose what gets scored? Turn off automatic analysis in settings. Grey dots stay ready until you click. How it works.
Underlines on text
Posts and articles in a supported language get a colored underline in place. More green means more likely real; more red means more likely AI. The lines on this page are a live-style demo: hover any underlined line to see a percent.tap any underlined line to see a percent. Text scoring supports English, Chinese, Spanish, French, Portuguese, German, Italian, and Dutch.
Higher AI scores show stronger (more opaque). Lower scores stay faint so the page stays readable. You can turn score opacity off in settings if you want every dot and underline at full strength.
Live tab soundtrack
Premium and Pro can score about four seconds of a video's tab audio on click or play and include it in one combined percent. Chrome grants that access only when you turn the setting on. Free never captures tab audio. It never uses your microphone and never listens while you only scroll.
What you can Check
Images, video frames, and text in the eight languages above. Video uses a few frames. Images generally need about 256px on the short edge. Very short posts often stay unmarked.
Drop a file in the popup on any plan: images, video, text, or audio.
After a score you can make a Share, or issue a report anyone can verify. Confirm is Pro, and only when you ask.
Models on every plan
- Vermeer for images
- Valla for text (English, Chinese, Spanish, French, Portuguese, German, Italian, and Dutch)
- Muybridge for video
- Helmholtz for audio
The live names are Vermeer@14.2, Valla@14.3, Muybridge@4.4, and Helmholtz@3.1.
A score is a signal, not a verdict. Measurements are on Docs.
Free in Chrome
Signed out: 30 Checks a week. Signed in: 300 a week. Premium raises that ceiling and adds history, documents, reports, and live tab soundtrack. See plans.
- Free: weekly Check limit
- Premium: history, documents, and reports
- Pro: Confirm and API keys
Android App
Share a photo or a clip to Check it. Same scores as Chrome and the web.
Share it in
When someone sends you a photo, a clip, or a file, share it to DotCheck. Same Google account. Same scores.
Android cannot mark other apps while you browse. You bring the file in.
What you can Check
Images, video, text, audio, documents. PDF, Word, and PowerPoint, page by page. On plans that allow a batch, several files at once, including a zip.
After a score you can make a Share, or issue a report anyone can verify.
Models on every plan
- Vermeer for images
- Valla for text (English, Chinese, Spanish, French, Portuguese, German, Italian, and Dutch)
- Muybridge for video
- Helmholtz for audio
A score is a signal, not a verdict. Measurements are on Docs.
- Free: sign in, 30 Checks a week
- Premium: history, documents, and reports
- Pro: Confirm and API keys
Subscriptions paid with Google Play.
Pro API
Same scores as Check, from your own app.
Pro keys talk to the same Express path Check uses. Image, text, video, audio, and documents. Issue a report with POST /report. Confirm stays first-party. English PDF and curls live on the API page.
Reports
Anyone can screenshot a score. A DotCheck Report can be verified.
Try issuing one
Checking sign-in…
Sign in to score a photo or document and issue a SAMPLE Report. It stays live on Verify for 24 hours, and every page is marked SAMPLE.
Issue a SAMPLE
Give anyone a way to check
A DotCheck Report is how you send an AI score so the other person can open it themselves. They go to dotcheck.ai/verify. They do not need an account. You send the Verify link, the PDF, or a batch PDF, and they see what was measured and when it was issued, in a record that is theirs to check.
Sign in, drop a photo, issue a SAMPLE. You get the real path with a SAMPLE stamp, live for 24 hours, plus the report and the link. Sign in is the only step.
Documents
You can do the same with a PDF or a Word file. Sign in, drop the document above, score it, and issue a SAMPLE. They open a record of the whole file: score marks on the pages, a certificate, and a Verify link. If you send contracts, pitches, or articles, drop a document once and you will see how a report lands.
It is a SAMPLE: stamped, live for 24 hours. A DotCheck Report records what was measured and when. It does not prove authorship or origin.