app.optimism.io

https://app.optimism.io
dApp frontend · scanned 5 h ago

Findings

  • medium No Content-Security-Policy
    The site sends no Content-Security-Policy, so an injected script (XSS, compromised dependency) runs with full access to the wallet UI.
  • low DNSSEC not enabled
    DNS answers for the domain are not signed, so a resolver-level attacker could redirect users to a fake front end.
  • low No Referrer-Policy
    Full page URLs (which can carry addresses or tokens) may be sent to third-party sites in the Referer header.
  • low No security.txt
    There is no /.well-known/security.txt, so researchers who find a vulnerability have no published way to report it.
  • info No Permissions-Policy
    The site does not restrict powerful browser features (camera, microphone, payment, USB) for itself and embedded frames.
  • info Third-party scripts
    The homepage loads scripts from 1 third-party origin(s); each one can read and change the wallet UI.

Evidence, exact locations and fixes are in the deep report. How scoring works.

Scan notes

Script https://app.optimism.io/assets/index-D7PabkvT.js truncated at 200 KB.

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Evidence, locations, fixes and an AI code review. Private link, no email.

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Paid in crypto via NOWPayments. Automated pre-audit, not an audit.

Facts

Hosting
Netlify
DNS provider
Cloudflare
DNSSEC
No
HTTPS
Yes
HSTS
Yes (365 days)
CSP
No
Wallet SDKs
None detected
Third-party scripts
1
Scripts scanned
2
security.txt
No
robots.txt
Yes

Badge

DappVet score 85

[![Vetted by DappVet](https://dappvet.com/badge/H0i1939w.svg)](https://dappvet.com/d/app.optimism.io)

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