Skip to main content

Compare Analyses

Select two analyses of nsa.gov to compare

Click two rows to select them for comparison, then press Compare.

Date SPF DMARC DKIM Duration Version
2026-03-10 14:12:26 UTC SPF DMARC DKIM 21.56s v26.35.35
2026-03-08 14:07:55 UTC SPF DMARC DKIM 23.60s v26.35.20
2026-03-08 09:43:31 UTC SPF DMARC DKIM 17.94s v26.35.17
2026-03-08 09:43:13 UTC SPF DMARC DKIM 60.01s v26.35.17
2026-03-08 01:06:56 UTC SPF DMARC DKIM 21.85s v26.35.17
2026-03-07 23:40:28 UTC SPF DMARC DKIM 16.45s v26.35.15
2026-03-07 14:23:25 UTC SPF DMARC DKIM 17.88s v26.35.08
2026-03-06 14:22:32 UTC SPF DMARC DKIM 23.44s v26.34.52
2026-03-05 14:24:31 UTC SPF DMARC DKIM 17.83s v26.34.20
2026-03-05 10:43:59 UTC SPF DMARC DKIM 23.35s v26.34.20
2026-03-04 14:28:27 UTC SPF DMARC DKIM 23.31s v26.33.93
2026-03-03 14:31:55 UTC SPF DMARC DKIM 23.24s v26.33.67
2026-03-03 06:25:50 UTC SPF DMARC DKIM 17.92s v26.32.59
2026-03-02 14:29:44 UTC SPF DMARC DKIM 18.01s v26.28.42
2026-03-01 14:35:09 UTC SPF DMARC DKIM 16.34s v26.28.35
2026-02-27 07:03:54 UTC SPF DMARC DKIM 60.02s v26.27.09
2026-02-27 05:58:07 UTC SPF DMARC DKIM 60.01s v26.27.09
2026-02-26 14:53:57 UTC SPF DMARC DKIM 60.00s v26.26.30
2026-02-26 14:53:27 UTC SPF DMARC DKIM 60.00s v26.26.30
2026-02-26 14:52:56 UTC SPF DMARC DKIM 60.00s v26.26.30
Select 2 analyses to compare
Straight talk about your data.

We use two cookies, both essential:

  • _csrf — Prevents cross-site request forgery. Required for form submissions. Security-only.
  • _dns_session — Only exists if you choose to sign in. No account required to use DNS Tool.

We log your IP address for two reasons: rate limiting (so nobody abuses the service) and security (identifying malicious actors and complying with legal obligations). We check source geography for analysis accuracy — DNS responses vary by region, and knowing which resolver answered from where makes the science better.

No tracking cookies. No analytics cookies. No ad networks. No data brokers. Our code is open-core — the application framework is publicly available under BUSL-1.1 with timed Apache-2.0 conversion. Verify it yourself.

If you create an account and want out, account deletion removes your login and scan history. Public domain analyses remain available because they contain only public DNS records, already hashed. Full details: Privacy Pledge.