Verifying against the live site and live WHOIS/DNS…
Common questions
Is astron.nl legit or a scam?
AboutUs doesn't label sites "legit" or "a scam": this page lists the dated registration, DNS, HTTPS, mail-authentication and safety checks we could verify, each with its source, so you can decide for yourself.
Who owns astron.nl?
Nobody has completed AboutUs's owner verification for astron.nl. That's true of most sites here — it isn't itself a warning sign.
Correct a description, link or other detail. Submissions are reviewed before publication.
Registered 1997 · site is live · HTTPS valid
AsTron.nl is an institute for radio technology in Netherlands.
ASTRON is a research institute based in Dwingeloo, Netherlands, focused on radio technology and astronomy. The organization operates radio astronomy facilities and collaborates with international observatories in the field.
Add the HSTS, Content-Security-Policy, and X-Frame-Options response headers.
AboutUs has not vetted this site. 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.
latest result
Domain registered May 1, 1997 — 29 years old.
latest result
Registrar on record: SURF B.V. — unchanged since AboutUs began tracking (Aug 11, 2026).
latest result
HTTPS request succeeded for www.astron.nl.
checked Sep 30, 2026
The site names ASTRON as the organisation behind it.
checked Sep 30, 2026
The live front page reads as an education or reference site that is a public service, mainly for specialists in its field.
✓ domain continuity 29 years registered✓ live verified Oct 27, 2026
Safety evidence
No unexpired threat-feed result; name-similarity check available (recorded about 67 days ago); 3/3 transport and email checks available (oldest recorded about 67 days ago). This is evidence coverage, not a probability that a website is safe.
Recorded HTTPS check did not confirm a valid connection
Lifeline · astron.nl over time
Checked in the last 30 daysOlder, dated recordFrom registration records
On AboutUs since 2006 · one registrar since Jan 18, 2025 · 1 ownership change since 2009 · last checked Sep 23, 2026.
Registration
No registration date on file yet. AboutUs reads it from RDAP when the site is checked.
AboutUs record
AboutUs wiki pageAboutUs wiki pageOct 22, 2006 – Apr 8, 2014An AboutUs wiki page described astron.nl from Oct 22, 2006 to Apr 8, 2014 (3 edits).Source: AboutUs wiki archive, 2006–2023Current AboutUs recordJul 6, 2026 – Aug 21, 2026 (latest)Authority and Safety last refreshed Aug 21, 2026.Source: AboutUs checks
Registrar
SURF B.V.SURF B.V.Jan 18, 2025 – Oct 26, 2026 (latest)Registrar SURF B.V. in the registration data recorded, first on Jan 18, 2025 and most recently on Oct 26, 2026.Source: RDAP, fetched Jul 6, 2026
Ownership
Ownership recordsMar 13, 2009 – May 30, 2026Registration records for astron.nl are held from Mar 13, 2009 to May 30, 2026 (15 records). 1 change of registrant name or organization is marked. Privacy-service and redaction changes are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Zone file
Nameservers: astron.nl, surfnet.nlJan 18, 2025 – May 30, 2026Registration records listed astron.nl, surfnet.nl nameservers (dns1.astron.nl, dns2.astron.nl, ns1.surfnet.nl) for astron.nl from Jan 18, 2025 to May 30, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Certificate
Let's EncryptApr 21, 2026 – Oct 27, 2026 (latest)Let's Encrypt issued 118 certificates for astron.nl from Apr 21, 2026, the latest valid until Jan 22, 2027. Seen in use on Sep 23, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Sep 23, 2026
2010201520202025Apr ’26← last 12 months, drawn wider
Every dated fact on this lifeline (9)
Oct 22, 2006 – Apr 8, 2014AboutUs record: An AboutUs wiki page described astron.nl from Oct 22, 2006 to Apr 8, 2014 (3 edits).Source: AboutUs wiki archive, 2006–2023
Mar 13, 2009 – May 30, 2026Ownership: Registration records for astron.nl are held from Mar 13, 2009 to May 30, 2026 (15 records). 1 change of registrant name or organization is marked. Privacy-service and redaction changes are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Jan 18, 2025 – Oct 26, 2026Registrar: Registrar SURF B.V. in the registration data recorded, first on Jan 18, 2025 and most recently on Oct 26, 2026.Source: RDAP, fetched Jul 6, 2026
Jan 18, 2025Ownership: The registrant name or organization in the registration record changed; first recorded Jan 18, 2025. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Jan 18, 2025 – May 30, 2026Zone file: Registration records listed astron.nl, surfnet.nl nameservers (dns1.astron.nl, dns2.astron.nl, ns1.surfnet.nl) for astron.nl from Jan 18, 2025 to May 30, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Ownership change
Jan 18, 2025
The registrant name or organization in the registration record changed; first recorded Jan 18, 2025. Who it changed to is in the full report.
Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
1 ownership change, 2009–2026
Hellenic Academic and Research Institutions CA
Apr 21, 2026 – Oct 27, 2026
Hellenic Academic and Research Institutions CA issued 31 certificates for astron.nl from Apr 21, 2026, the latest valid until May 9, 2027.
Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
ZeroSSL GmbHSep 26, 2026 – Oct 27, 2026ZeroSSL GmbH issued 1 certificate for astron.nl from Sep 26, 2026, the latest valid until Dec 25, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Apr 21, 2026 – Oct 27, 2026
Certificate: Let's Encrypt issued 118 certificates for astron.nl from Apr 21, 2026, the latest valid until Jan 22, 2027. Seen in use on Sep 23, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Sep 23, 2026
Apr 21, 2026 – Oct 27, 2026Certificate: Hellenic Academic and Research Institutions CA issued 31 certificates for astron.nl from Apr 21, 2026, the latest valid until May 9, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Jul 6, 2026 – Aug 21, 2026AboutUs record: Authority and Safety last refreshed Aug 21, 2026.Source: AboutUs checks
Sep 26, 2026 – Oct 27, 2026Certificate: ZeroSSL GmbH issued 1 certificate for astron.nl from Sep 26, 2026, the latest valid until Dec 25, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)