TraceTail
Free plan · From $0.10 per useActively maintained
- Is it safe? What TraceTail says it does with your chats and data, from its own policy pages.See ↓
- Is it free? Free plan · From $0.10 per use · pricing page, read Oct 20, 2026See ↓
- What else does this?
tracio.aifreeSee ↓
≈ 4visits/mo
Little sign of use · estimate, read Oct 14, 2026
- For
- Web developers and teams who need to recognize returning browsers and fight signup abuse, account takeover or bots without cookies.
- Price
- Free plan · From $0.10 per usepricing page, read Oct 20, 2026
- Activity
- Actively maintainedsite updated 4 weeks ago
- Used for
- flag sign-ins from devices an account has never used
- detect one device opening many accounts to claim promo offers
- rate-limit scrapers and bots by visitor ID instead of IP
- Has an MCP server (1 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantstracetail.io ↗
- Certifications they stateGDPRprivacy policy ↗
- Privacy policy updated2026-10-05privacy policy ↗
- Security contactsecurity.txt
These are TraceTail's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.
- MCP serverio.tracetail/tracetailverified in the MCP registry
- Stateanswers, 6 toolschecked 2026-10-20
- Address to connecttracetail.io/mcp
- OpenAPI spec8 pathsthe spec ↗
- Status pagelinked from the homepagetracetail.io/status ↗
This card as JSON, for your agent →
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
Not it? Say what you need
betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
No notes yet. What do you use TraceTail for?
Sign in to leave a noteWhat is TraceTail?
Computes a stable browser visitor ID from 40 browser signals, recognizing returning visitors without cookies or local storage.
Who is TraceTail for?
Web developers and teams who need to recognize returning browsers and fight signup abuse, account takeover or bots without cookies.
How much does TraceTail cost?
TraceTail has a free plan; paid plans start at $0.10 per use, per its pricing page on 2026-10-20.
Is TraceTail free?
Yes, TraceTail has a free plan, per its pricing page on 2026-10-20.
Do people use TraceTail?
Little sign of use: ≈ 4 visits/mo · estimate, 2026-10.
Is TraceTail still maintained?
Actively maintained: site updated 4 weeks ago.
Is TraceTail safe?
We do not audit vendors. What TraceTail publishes, read 2026-10-20: GDPR stated on its privacy policy.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
Before we count this visit
Analytics and ad measurement tell us which pages and which of our ads do their job: Google Analytics and Google Ads, the Meta pixel, Yandex Metrica, and one first-party id of our own. Nothing is stored until you answer, and declining changes nothing about the site.