Verifying against the live site and live WHOIS/DNS…
Common questions
Is scilab.org 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 scilab.org?
Nobody has completed AboutUs's owner verification for scilab.org. 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.
0 of 2 safety checks passed (Oct 26, 2026).
Registered 2001 · AboutUs could not get a response over HTTPS when it checked (Oct 26, 2026)
Scilab.org The open source platform for numerical computation
Scilab is an open-source platform for numerical computation, used for engineering studies and technical work. It serves researchers, engineers, and students who need tools for mathematical modeling and simulation. The project is maintained by Inria, a French public research institute.
Add a public A or AAAA record so the domain resolves.
HTTPS (failed)
Make sure the site responds over HTTPS with a valid certificate.
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 Jul 20, 2001 — 25 years old.
latest result
Registrar on record: IP Twins SAS — unchanged since AboutUs began tracking (Aug 31, 2026).
Authority 55/100— ahead of 55% of the August 2026 scored sampleClear
Why this authority score
55 is a percentile: higher than 55% of sites we score.
How it's calculated
Prominence (Tranco rank #95,175)+7
Verified continuity: 25.3 years (RDAP registration)+11
Security & email hygiene+2
Calibration adjustment (published map)+9
Model score: 29/99 — what these reason lines add up to.
Published Authority (percentile): 55/100 — this site's rank against the August 2026 scored sample. Public Authority is capped at 99.
Safety evidence
No unexpired threat-feed result; name-similarity check available (recorded about 65 days ago); 3/3 transport and email checks available (oldest recorded about 65 days ago). This is evidence coverage, not a probability that a website is safe.
Recorded HTTPS check did not confirm a valid connection
Missing DMARC (mild)
What scilab.org said about itself, 2007
Quoted from the site's AboutUs wiki page in each year it changed (1 version). These are the page's own words at the time, not AboutUs's assessment. New words · dropped words
2007
O Scilab têm contribuido muito para os estudos e trabalhos de engenharia que desenvolvo.The Scilab is very important for may study and work. Thanks.
Site history
Dated record — historical facts always carry their date; self-description below is the 2013 record.
2001
Domain registered (Jul 20, 2001).
2007
First tracked by AboutUs (May 21, 2007); profile edited 2 times through 2013.
2013
Self-description at the time:
“Scilab.org The open source platform for numerical computation”
✓ domain continuity 25 years registered✗ not reachable no response when checked Oct 26, 2026
Lifeline · scilab.org over time
Checked in the last 30 daysOlder, dated recordFrom registration records
On AboutUs since 2007 · 3 registrar changes since Dec 13, 2011 · 2 ownership changes since 2011 · last checked Aug 21, 2026.
Registration
No registration date on file yet. AboutUs reads it from RDAP when the site is checked.
AboutUs record
AboutUs wiki pageAboutUs wiki pageMay 21, 2007 – Nov 11, 2013An AboutUs wiki page described scilab.org from May 21, 2007 to Nov 11, 2013 (2 edits).Source: AboutUs wiki archive, 2006–2023Said about itself in 2007Jul 1, 2007“O Scilab têm contribuido muito para os estudos e trabalhos de engenharia que desenvolvo.The Scilab is very important for may study and work. Thanks.”Source: AboutUs wiki archive, 2007Current AboutUs recordJul 3, 2026 – Aug 21, 2026 (latest)Authority and Safety last refreshed Aug 21, 2026.Source: AboutUs checks
Registrar
Network Solutions LLC (R63-LROR)Dec 13, 2011Registrar Network Solutions LLC (R63-LROR) in the registration data recorded on Dec 13, 2011.Source: WHOIS / RDAP archive (who.is)Safebrands SASAug 27, 2016 – Jul 27, 2017Registrar Safebrands SAS (IANA 1290) in the WHOIS and RDAP records held for scilab.org, from Aug 27, 2016 to Jul 27, 2017.Source: WHOIS / RDAP archive (who.is)GANDI SASGANDI SASMar 6, 2018 – Oct 7, 2022Registrar GANDI SAS (IANA 81) in the WHOIS and RDAP records held for scilab.org, from Mar 6, 2018 to Oct 7, 2022.Source: WHOIS / RDAP archive (who.is)IP Twins SASIP Twins SASNov 15, 2022 – Oct 26, 2026 (latest)Registrar IP Twins SAS (IANA 1728) in the registration data recorded, first on Nov 15, 2022 and most recently on Oct 26, 2026.Source: RDAP, fetched Jul 3, 2026
Ownership
Ownership recordsDec 13, 2011 – Jun 30, 2026Registration records for scilab.org are held from Dec 13, 2011 to Jun 30, 2026 (103 records). 2 changes of registrant name or organization are marked. Privacy-service and redaction changes are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization onlyOwnership changeAug 27, 2016The registrant name or organization in the registration record changed; first recorded Aug 27, 2016. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization onlyOwnership changeMar 6, 2018The registrant name or organization in the registration record changed; first recorded Mar 6, 2018. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
2 ownership changes, 2011–2026
Zone file
No nameserver records held, Dec 2011 – Aug 2016No nameserver records held, Dec 2011 – Aug 2016Nameservers: inria.frDec 13, 2011Registration records listed inria.fr nameservers (palmaria.inria.fr, santostefano.inria.fr) for scilab.org from Dec 13, 2011 to Dec 13, 2011.Source: From registration records (WHOIS / RDAP archive, who.is)Nameservers: ovh.netNameservers: ovh.netAug 27, 2016 – Jan 20, 2020Registration records listed ovh.net nameservers (dns15.ovh.net, ns15.ovh.net) for scilab.org from Aug 27, 2016 to Jan 20, 2020.Source: From registration records (WHOIS / RDAP archive, who.is)DNS moved to ovh.netAug 27, 2016scilab.org's nameservers moved from inria.fr to ovh.net at some point between Dec 13, 2011 and Aug 27, 2016. Last seen at inria.fr: Dec 13, 2011 (registration record). First seen at ovh.net: Aug 27, 2016 (registration record). AboutUs holds no nameserver records for the about 5 years in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (registration record → registration record)Nameservers: gandi.netFeb 22, 2020 – Oct 7, 2022Registration records listed gandi.net nameservers (ns-28-c.gandi.net, ns-41-a.gandi.net, ns-8-b.gandi.net) for scilab.org from Feb 22, 2020 to Oct 7, 2022.Source: From registration records (WHOIS / RDAP archive, who.is)DNS moved to gandi.netFeb 22, 2020scilab.org's nameservers moved from ovh.net to gandi.net between Jan 20, 2020 and Feb 22, 2020. Last seen at ovh.net: Jan 20, 2020 (registration record). First seen at gandi.net: Feb 22, 2020 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)Nameservers: iptwins.com, iptwins.netNov 15, 2022Registration records listed iptwins.com, iptwins.net nameservers (ns1.iptwins.net, ns2.iptwins.net, ns3.iptwins.com…) for scilab.org from Nov 15, 2022 to Nov 15, 2022.Source: From registration records (WHOIS / RDAP archive, who.is)DNS moved to iptwins.com, iptwins.netNov 15, 2022scilab.org's nameservers moved from gandi.net to iptwins.com, iptwins.net between Oct 7, 2022 and Nov 15, 2022. Last seen at gandi.net: Oct 7, 2022 (registration record). First seen at iptwins.com, iptwins.net: Nov 15, 2022 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)Nameservers: Amazon Route 53Nameservers: Amazon Route 53Dec 20, 2022 – Jun 30, 2026Registration records listed Amazon Route 53 nameservers (ns-1018.awsdns-63.net, ns-1082.awsdns-07.org, ns-1997.awsdns-57.co.uk…) for scilab.org from Dec 20, 2022 to Jun 30, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)DNS moved to Amazon Route 53Dec 20, 2022scilab.org's nameservers moved from iptwins.com, iptwins.net to Amazon Route 53 between Nov 15, 2022 and Dec 20, 2022. Last seen at iptwins.com, iptwins.net: Nov 15, 2022 (registration record). First seen at Amazon Route 53: Dec 20, 2022 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Certificate
AmazonAmazonSep 20, 2025 – Oct 26, 2026Amazon issued 2 certificates for scilab.org from Sep 20, 2025, the latest valid until Mar 6, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)Sectigo LimitedFeb 16, 2026 – Oct 26, 2026Sectigo Limited issued 1 certificate for scilab.org from Feb 16, 2026, the latest valid until Feb 16, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)Let's EncryptApr 27, 2026 – Oct 26, 2026Let's Encrypt issued 23 certificates for scilab.org from Apr 27, 2026, the latest valid until Dec 5, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
2010201520202025Apr ’26← last 12 months, drawn wider
Every dated fact on this lifeline (22)
May 21, 2007 – Nov 11, 2013AboutUs record: An AboutUs wiki page described scilab.org from May 21, 2007 to Nov 11, 2013 (2 edits).Source: AboutUs wiki archive, 2006–2023
Jul 1, 2007AboutUs record: “O Scilab têm contribuido muito para os estudos e trabalhos de engenharia que desenvolvo.The Scilab is very important for may study and work. Thanks.”Source: AboutUs wiki archive, 2007
Dec 13, 2011Registrar: Registrar Network Solutions LLC (R63-LROR) in the registration data recorded on Dec 13, 2011.Source: WHOIS / RDAP archive (who.is)
Dec 13, 2011 – Jun 30, 2026Ownership: Registration records for scilab.org are held from Dec 13, 2011 to Jun 30, 2026 (103 records). 2 changes of registrant name or organization are marked. Privacy-service and redaction changes are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Dec 13, 2011Zone file: Registration records listed inria.fr nameservers (palmaria.inria.fr, santostefano.inria.fr) for scilab.org from Dec 13, 2011 to Dec 13, 2011.Source: From registration records (WHOIS / RDAP archive, who.is)
Aug 27, 2016 – Jul 27, 2017Registrar: Registrar Safebrands SAS (IANA 1290) in the WHOIS and RDAP records held for scilab.org, from Aug 27, 2016 to Jul 27, 2017.Source: WHOIS / RDAP archive (who.is)
Aug 27, 2016Ownership: The registrant name or organization in the registration record changed; first recorded Aug 27, 2016. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Aug 27, 2016 – Jan 20, 2020Zone file: Registration records listed ovh.net nameservers (dns15.ovh.net, ns15.ovh.net) for scilab.org from Aug 27, 2016 to Jan 20, 2020.Source: From registration records (WHOIS / RDAP archive, who.is)
Aug 27, 2016Zone file: scilab.org's nameservers moved from inria.fr to ovh.net at some point between Dec 13, 2011 and Aug 27, 2016. Last seen at inria.fr: Dec 13, 2011 (registration record). First seen at ovh.net: Aug 27, 2016 (registration record). AboutUs holds no nameserver records for the about 5 years in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Mar 6, 2018 – Oct 7, 2022Registrar: Registrar GANDI SAS (IANA 81) in the WHOIS and RDAP records held for scilab.org, from Mar 6, 2018 to Oct 7, 2022.Source: WHOIS / RDAP archive (who.is)
Mar 6, 2018Ownership: The registrant name or organization in the registration record changed; first recorded Mar 6, 2018. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Feb 22, 2020 – Oct 7, 2022Zone file: Registration records listed gandi.net nameservers (ns-28-c.gandi.net, ns-41-a.gandi.net, ns-8-b.gandi.net) for scilab.org from Feb 22, 2020 to Oct 7, 2022.Source: From registration records (WHOIS / RDAP archive, who.is)
Feb 22, 2020Zone file: scilab.org's nameservers moved from ovh.net to gandi.net between Jan 20, 2020 and Feb 22, 2020. Last seen at ovh.net: Jan 20, 2020 (registration record). First seen at gandi.net: Feb 22, 2020 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Nov 15, 2022 – Oct 26, 2026Registrar: Registrar IP Twins SAS (IANA 1728) in the registration data recorded, first on Nov 15, 2022 and most recently on Oct 26, 2026.Source: RDAP, fetched Jul 3, 2026
Nov 15, 2022Zone file: Registration records listed iptwins.com, iptwins.net nameservers (ns1.iptwins.net, ns2.iptwins.net, ns3.iptwins.com…) for scilab.org from Nov 15, 2022 to Nov 15, 2022.Source: From registration records (WHOIS / RDAP archive, who.is)
Nov 15, 2022Zone file: scilab.org's nameservers moved from gandi.net to iptwins.com, iptwins.net between Oct 7, 2022 and Nov 15, 2022. Last seen at gandi.net: Oct 7, 2022 (registration record). First seen at iptwins.com, iptwins.net: Nov 15, 2022 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Dec 20, 2022 – Jun 30, 2026Zone file: Registration records listed Amazon Route 53 nameservers (ns-1018.awsdns-63.net, ns-1082.awsdns-07.org, ns-1997.awsdns-57.co.uk…) for scilab.org from Dec 20, 2022 to Jun 30, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Dec 20, 2022Zone file: scilab.org's nameservers moved from iptwins.com, iptwins.net to Amazon Route 53 between Nov 15, 2022 and Dec 20, 2022. Last seen at iptwins.com, iptwins.net: Nov 15, 2022 (registration record). First seen at Amazon Route 53: Dec 20, 2022 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Sep 20, 2025 – Oct 26, 2026Certificate: Amazon issued 2 certificates for scilab.org from Sep 20, 2025, the latest valid until Mar 6, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Feb 16, 2026 – Oct 26, 2026Certificate: Sectigo Limited issued 1 certificate for scilab.org from Feb 16, 2026, the latest valid until Feb 16, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Apr 27, 2026 – Oct 26, 2026Certificate: Let's Encrypt issued 23 certificates for scilab.org from Apr 27, 2026, the latest valid until Dec 5, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Jul 3, 2026 – Aug 21, 2026AboutUs record: Authority and Safety last refreshed Aug 21, 2026.Source: AboutUs checks