stratigraphy.org

Stratigraphy.org

Stratigraphy.org is the official website of the International Commission on Stratigraphy, a scientific body that maintains the geologic time scale and stratigraphic standards. It serves geologists, paleontologists, and earth scientists worldwide who need authoritative reference information on geological periods and chronological divisions.

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Authority

55/100

Safety

90/100

Registered

Jun 30, 2000

26 years old · Register.com - Network Solutions, LLC

3 of 4 safety checks passed (Sep 21, 2026).

AboutUs has not vetted this site. 1 of 4 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

Latest available measurements; dated entries retain their dates. These are measurements, not an endorsement of the site.

Authority & Safety, with the evidence

How this is scored →

Authority 55/100 — ahead of 55% of the August 2026 scored sampleClear

Why this authority score

Prominence (Tranco rank #211,846)+6
Verified continuity: 26.2 years (RDAP registration)+11
Security & email hygiene+3
Calibration adjustment (published map)+9

These lines explain the underlying model score of 29/99, which is what places this site at 55/100 using the August 2026 scored sample. Public Authority is capped at 99.

Safety evidence

No unexpired threat-feed result; name-similarity check available (recorded about 29 days ago); 3/3 transport and email checks available (oldest recorded about 29 days ago). This is evidence coverage, not a probability that a website is safe.

No MX and no DMARC (mild)

Site history

Dated record — historical facts always carry their date.

2000
Domain registered (Jun 30, 2000).
2026
Checked today — 3 of 4 safety checks passed (Sep 21, 2026).

✓ domain continuity 26 years registered✓ live verified Sep 21, 2026

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