cwi.nl

Cwi.nl

CWI is funded for 70 percent by NWO, the Netherlands Organisation for Scientific Research.

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Authority

97/100

Safety

90/100

Registered

Apr 30, 1986

40 years old · SURF B.V.

On record

since 2006

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

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 Apr 30, 1986 — 40 years old.

checked now

Registrar today: SURF B.V. — unchanged since AboutUs began tracking (Jul 23, 2026).

checked now

Live site responds over HTTPS.

Trust record

Authority & Safety, with the evidence

How this is scored →

Authority 97/100 — ahead of 97% of scored sitesClear

Why this authority score

Prominence (Tranco rank #4,311; Open PageRank 3.3/10)+13
Verified continuity: 40.3 years (RDAP registration)+11
Security & email hygiene+4
Prominence × continuity interaction+1
Calibration adjustment (published map)+23

Every point maps to a sentence. These lines sum to the model score of 52/99, which is what places this site at 97/100 against every other scored site.

Safety evidence

All checked sources came back clean

Site history

Dated record — historical facts always carry their date.

1986
Domain registered (Apr 30, 1986).
2006
First tracked by AboutUs (Jun 19, 2006); profile edited 3 times through 2013.
2026
Checked today — All 5 safety checks passed (Sep 4, 2026).

✓ domain continuity 40 years registered✓ live verified Sep 4, 2026

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