libspf.org

Libspf.org

The Original ANSI C Sender Policy Framework (SPF) Reference Library

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Authority

10/100

Safety

90/100

Registered

Aug 30, 2022

4 years old · Dynadot Inc

4 of 5 safety checks passed (Sep 4, 2026).

AboutUs has not vetted this site. 1 of 5 automated safety check did not pass. Everything below is what we could measure automatically. Anything you do on the site — paying, sharing personal details, downloading — is between you and the site, not AboutUs.

Current facts

What AboutUs observed on the live site and in WHOIS/DNS today. These are measurements, not an endorsement of the site.

checked now

Domain registered Aug 30, 2022 — 4 years old.

checked now

Registrar today: Dynadot Inc — unchanged since AboutUs began tracking (Aug 15, 2026).

checked now

Live site responds over HTTPS.

Trust record

Authority & Safety, with the evidence

How this is scored →

Authority 10/100 — ahead of 10% of scored sitesClear

Why this authority score

Prominence (Open PageRank 2.4/10)+5
Verified continuity: 4.0 years (RDAP registration)+5
Security & email hygiene+3
Calibration adjustment (published map)+1

Every point maps to a sentence. These lines sum to the model score of 14/99, which is what places this site at 10/100 against every other scored site.

Safety evidence

No MX and no DMARC (mild)

Site history

Dated record — historical facts always carry their date.

2022
Domain registered (Aug 30, 2022).
2026
Checked today — 4 of 5 safety checks passed (Sep 4, 2026).

✓ domain continuity 4 years registered✓ live verified Sep 4, 2026

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