mathmistakes.com

MathMistakes.com

Glossary of mathematical mistakes; quotes; puzzles and problems; links.

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Authority

44/100

Safety

84/100

Registered

Sep 16, 1998

27 years old · GKG.Net, Inc.

1 of 2 safety checks passed (Sep 8, 2026).

AboutUs has not vetted this site. 1 of 2 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 Sep 16, 1998 — 27 years old.

checked now

Registrar today: GKG.Net, Inc. — unchanged since AboutUs began tracking (Sep 8, 2026).

Trust record

Authority & Safety, with the evidence

How this is scored →

Authority 44/100 — ahead of 44% of scored sitesSome caution flags

Why this authority score

Prominence (Open PageRank 2.2/10)+5
Verified continuity: 27.8 years (RDAP registration)+11
Security & email hygiene+2
Calibration adjustment (published map)+6

Every point maps to a sentence. These lines sum to the model score of 24/99, which is what places this site at 44/100 against every other scored site.

Safety evidence

No valid HTTPS today
Missing DMARC (mild)

Site history

Dated record — historical facts always carry their date.

1998
Domain registered (Sep 16, 1998).
2026
Checked today — 1 of 2 safety checks passed (Sep 8, 2026).

✓ domain continuity 27 years registered✓ live verified Sep 8, 2026

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