Mesmer
Unmask
AI browser sandbox that reacts to the page and records its behavior.
Mesmer Unmask opens URLs and domains in a browser sandbox where an AI agent works through challenges, forms and downloads. Every clipboard write, form post, file and redirect is recorded.
Available on Pro and Enterprise, 20 to 60 seconds per scan.
Features
Cloudflare challenge bypassTurnstile, managed challenges, interstitials
CAPTCHA solvingSolver on a second visit when a challenge holds
Synthetic identityWindows fingerprint, new name, email, password and card per visit
AI navigationClicks, types and submits forms
Isolated sandboxOne disposable cloud browser per scan
Behavior captureClipboard, form posts, downloads, popups, runtime code
Download captureSize, SHA-256, file type by magic bytes
Redirect chainHops and contacted hosts
Replay and request logVideo of the visit, requests by step
Deep dive with Mesmer Agent
For each scan, we store the request log, with response bodies for pages, scripts and API calls. Mesmer Agent can query it: filter by host or step, then grep a script for decoders and exfiltration endpoints.