📧 DMARC Report Viewer

Drop files anywhere on the page  ·  .xml, .zip, .gz  ·  Everything processed locally in your browser  ·  No data leaves your device

⚠️ Third-party library security notice — read before uploading sensitive reports

This tool loads two open-source libraries (pako and JSZip) from the Cloudflare CDN to decompress .gz and .zip files in your browser. Subresource Integrity (SRI) hashes are set, so your browser will refuse to run the files if they have been tampered with.

Residual risk: if the CDN served a malicious file before the hash was known (i.e. before your browser cached it), or the hash itself was compromised, a malicious library could access the files you upload. This is a very low-probability scenario, but it is real.

  • If this concerns you, only drag .xml files directly — this bypasses both libraries entirely (pure browser XML parsing).
  • Or host your own copy of this page with the libraries bundled inline.

Reverse DNS lookups are performed via the Google Public DNS API (dns.google) — only IP addresses are sent, never report content.

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Drop DMARC report files here
or click to browse  ·  .xml .zip .gz  ·  10 MB max per file  ·  drop more files anytime to add to current results