Verifying against the live site and live WHOIS/DNS…
Common questions
Is boskalis.com legit or a scam?
boskalis.com was registered Aug 29, 1996 (30 years old), per public registration records. 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 boskalis.com?
Nobody has completed AboutUs's owner verification for boskalis.com. That's true of most sites here — it isn't itself a warning sign.
When was boskalis.com registered?
boskalis.com's registration dates to Aug 29, 1996 (30 years old), per public registration records. Realtime Register B.V. is the registrar on record today.
Correct a description, link or other detail. Submissions are reviewed before publication.
Registered 1996 · site is live · HTTPS valid
BosKalis.com Dredging of ports and waterways in Europe
Royal Boskalis Westminster operates worldwide in dredging, port and waterway construction, land reclamation, coastal defence, and riverbank protection. The company serves governments and maritime industries across Europe and globally. Based in Papendrecht, Netherlands, it is a major contractor in marine infrastructure and environmental engineering.
Authority 75/100— ahead of 75% of the August 2026 scored sampleClear
Why this authority score
75 is a percentile: higher than 75% of sites we score.
How it's calculated
Prominence (Tranco rank #150,275)+5
Verified continuity: 30.2 years (RDAP registration)+11
Identity corroboration (capped)+4
Security & email hygiene+5
Calibration adjustment (published map)+13
Model score: 38/99 — what these reason lines add up to.
Published Authority (percentile): 75/100 — this site's rank against the August 2026 scored sample. Public Authority is capped at 99.
What boskalis.com said about itself, 2006
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
2006
Operates worldwide for the construction and maintenance of harbours andwaterways, land reclamation, and coastal defences, and riverbank protection.
Site history
Dated record — historical facts always carry their date.
✓ domain continuity 30 years registered✓ live verified Nov 13, 2026
Safety evidence
No unexpired threat-feed result; name-similarity check available (recorded about 2 days ago); 3/3 transport and email checks available (oldest recorded about 2 days ago). This is evidence coverage, not a probability that a website is safe.
No caution flags in the available scoring observations; this is not a complete safety assessment
Lifeline · boskalis.com over time
Checked in the last 30 daysOlder, dated recordFrom registration records
Registered 30 years ago · on AboutUs since 2006 · 4 registrar changes since Apr 17, 2008 · 3 registrant changes since 2007 · last checked Nov 13, 2026.
Registration
RegisteredAug 29, 1996boskalis.com was registered on Aug 29, 1996.Source: RDAP, fetched Nov 11, 2026
AboutUs record
AboutUs wiki pageAboutUs wiki pageJun 19, 2006 – Apr 21, 2014An AboutUs wiki page described boskalis.com from Jun 19, 2006 to Apr 21, 2014 (5 edits).Source: AboutUs wiki archive, 2006–2023Said about itself in 2006
Registrar
TUCOWS, INC.Apr 17, 2008 – May 31, 2011Registrar TUCOWS, INC. (IANA 69) in the WHOIS and RDAP records held for boskalis.com, from Apr 17, 2008 to May 31, 2011.Source: WHOIS / RDAP archive (who.is)PSI-USA, Inc. dba Domain RobotJul 25, 2011 – Feb 7, 2012
Registrant
Registrant recordsJun 16, 2007 – Jun 25, 2026Registration records for boskalis.com are held from Jun 16, 2007 to Jun 25, 2026 (109 records). 3 changes of registrant name or organization are marked. Privacy-service and redaction changes, renames of the same organization and new contacts at it are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Zone file
Nameservers: site4u.comApr 17, 2008 – Feb 7, 2012Registration records listed site4u.com nameservers (ns1.site4u.com, ns2.site4u.com, ns3.site4u.com) for boskalis.com from Apr 17, 2008 to Feb 7, 2012.Source: From registration records (WHOIS / RDAP archive, who.is)
Certificate
Sectigo LimitedSectigo LimitedOct 7, 2025 – Nov 13, 2026Sectigo Limited issued 32 certificates for boskalis.com from Oct 7, 2025, the latest valid until May 21, 2027. The check on Oct 29, 2026 saw it, expired Nov 7, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Oct 29, 2026
200020102020Jan ’26Oct ’26← last 12 months, drawn wider
Every dated fact on this lifeline (31)
Aug 29, 1996Registration: boskalis.com was registered on Aug 29, 1996.Source: RDAP, fetched Nov 11, 2026
Jun 19, 2006 – Apr 21, 2014AboutUs record: An AboutUs wiki page described boskalis.com from Jun 19, 2006 to Apr 21, 2014 (5 edits).Source: AboutUs wiki archive, 2006–2023
Jul 1, 2006AboutUs record: “Operates worldwide for the construction and maintenance of harbours andwaterways, land reclamation, and coastal defences, and riverbank protection.”Source: AboutUs wiki archive, 2006
Jun 16, 2007 – Jun 25, 2026Registrant: Registration records for boskalis.com are held from Jun 16, 2007 to Jun 25, 2026 (109 records). 3 changes of registrant name or organization are marked. Privacy-service and redaction changes, renames of the same organization and new contacts at it are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Apr 17, 2008 – May 31, 2011Registrar: Registrar TUCOWS, INC. (IANA 69) in the WHOIS and RDAP records held for boskalis.com, from Apr 17, 2008 to May 31, 2011.Source: WHOIS / RDAP archive (who.is)
Apr 17, 2008The registrant name or organization in the registration record changed; first recorded Apr 17, 2008. That can be a rename, a new contact or a sale; the record alone does not say which.
Jul 1, 2006
“Operates worldwide for the construction and maintenance of harbours andwaterways, land reclamation, and coastal defences, and riverbank protection.”
Source: AboutUs wiki archive, 2006
Current AboutUs recordJul 7, 2026 – Nov 11, 2026 (latest)Authority and Safety last refreshed Nov 11, 2026.Source: AboutUs checks
Registrar PSI-USA, Inc. dba Domain Robot (IANA 151) in the WHOIS and RDAP records held for boskalis.com, from Jul 25, 2011 to Feb 7, 2012.
Source: WHOIS / RDAP archive (who.is)
TUCOWS.COM CO.Jul 3, 2012Registrar TUCOWS.COM CO. in the registration data recorded on Jul 3, 2012.Source: WHOIS / RDAP archive (who.is)
TUCOWS, INC.Jan 28, 2013 – Jun 9, 2014Registrar TUCOWS, INC. (IANA 69) in the WHOIS and RDAP records held for boskalis.com, from Jan 28, 2013 to Jun 9, 2014.Source: WHOIS / RDAP archive (who.is)
REALTIME REGISTER B.V.REALTIME REGISTER B.V.Jun 20, 2017 – Nov 13, 2026 (latest)Registrar REALTIME REGISTER B.V. (IANA 839) in the registration data recorded, first on Jun 20, 2017 and most recently on Nov 13, 2026.Source: RDAP, fetched Nov 11, 2026
Registrant changeApr 17, 2008The registrant name or organization in the registration record changed; first recorded Apr 17, 2008. That can be a rename, a new contact or a sale; the record alone does not say which.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Registrant changeJan 28, 2013The registrant name or organization in the registration record changed; first recorded Jan 28, 2013. That can be a rename, a new contact or a sale; the record alone does not say which.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Registrant changeJun 20, 2017The registrant name or organization in the registration record changed; first recorded Jun 20, 2017. That can be a rename, a new contact or a sale; the record alone does not say which.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
3 registrant changes, 2007–2026
Nameservers: kpn.net
Jul 3, 2012 – Oct 17, 2013
Registration records listed kpn.net nameservers (ns1.kpn.net, ns2.kpn.net) for boskalis.com from Jul 3, 2012 to Oct 17, 2013. Days a zone file covers are shown from the zone file instead.
Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to kpn.netJul 3, 2012boskalis.com's nameservers moved from site4u.com to kpn.net at some point between Feb 7, 2012 and Jul 3, 2012. Last seen at site4u.com: Feb 7, 2012 (registration record). First seen at kpn.net: Jul 3, 2012 (registration record). AboutUs holds no nameserver records for the 5 months 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: kpn.netOct 18, 2013 – Jun 1, 2014kpn.net (ns1.kpn.net, ns2.kpn.net) were the nameservers listed for boskalis.com at every ICANN zone-file snapshot AboutUs holds from Oct 18, 2013 to Jun 1, 2014 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Nameservers: kpn.netJun 2, 2014 – Jun 9, 2014Registration records listed kpn.net nameservers (ns1.kpn.net, ns2.kpn.net) for boskalis.com from Jun 2, 2014 to Jun 9, 2014. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Nameservers: firstfind.net, firstfind.nlJan 24, 2015 – Apr 3, 2018firstfind.net, firstfind.nl (ns3.firstfind.nl, ns4.firstfind.nl, ns5.firstfind.net) were the nameservers listed for boskalis.com at every ICANN zone-file snapshot AboutUs holds from Jan 24, 2015 to Apr 3, 2018 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
DNS moved to firstfind.net, firstfind.nlJan 24, 2015boskalis.com's nameservers moved from kpn.net to firstfind.net, firstfind.nl at some point between Jun 9, 2014 and Jan 24, 2015. Last seen at kpn.net: Jun 9, 2014 (registration record). First seen at firstfind.net, firstfind.nl: Jan 24, 2015 (ICANN zone-file snapshot). AboutUs holds no nameserver records for the 8 months in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (registration record → ICANN zone-file snapshot)
Nameservers: firstfind.net, firstfind.nlApr 4, 2018 – Mar 9, 2022Registration records listed firstfind.net, firstfind.nl nameservers (ns3.firstfind.nl, ns4.firstfind.nl, ns5.firstfind.net) for boskalis.com from Apr 4, 2018 to Mar 9, 2022. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Nameservers: Microsoft Azure DNSNameservers: Microsoft Azure DNSApr 13, 2022 – Jun 25, 2026Registration records listed Microsoft Azure DNS nameservers (ns1-09.azure-dns.com, ns2-09.azure-dns.net, ns3-09.azure-dns.org…) for boskalis.com from Apr 13, 2022 to Jun 25, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to Microsoft Azure DNSApr 13, 2022boskalis.com's nameservers moved from firstfind.net, firstfind.nl to Microsoft Azure DNS between Mar 9, 2022 and Apr 13, 2022. Last seen at firstfind.net, firstfind.nl: Mar 9, 2022 (registration record). First seen at Microsoft Azure DNS: Apr 13, 2022 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Seen in the .com zone fileSep 8, 2026 – Nov 13, 2026 (latest)First seen in the .com zone file records AboutUs holds on Sep 8, 2026; latest sighting Nov 13, 2026. Nameservers on Nov 13, 2026: ns1-09.azure-dns.com, ns2-09.azure-dns.net, ns3-09.azure-dns.org, ns4-09.azure-dns.info.Source: ICANN CZDS zone file, snapshot Nov 13, 2026
DigiCert Inc
Mar 8, 2026 – Nov 13, 2026
DigiCert Inc issued 54 certificates for boskalis.com from Mar 8, 2026, the latest valid until May 2, 2027.
Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Let's EncryptMar 28, 2026 – Nov 13, 2026Let's Encrypt issued 73 certificates for boskalis.com from Mar 28, 2026, the latest valid until Feb 7, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Google Trust ServicesApr 11, 2026 – Nov 13, 2026Google Trust Services issued 22 certificates for boskalis.com from Apr 11, 2026, the latest valid until Dec 24, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
GoDaddy.comMay 18, 2026 – Nov 13, 2026GoDaddy.com issued 2 certificates for boskalis.com from May 18, 2026, the latest valid until May 17, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
ZeroSSL GmbHMay 19, 2026 – Nov 13, 2026ZeroSSL GmbH issued 3 certificates for boskalis.com from May 19, 2026, the latest valid until Dec 30, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
AmazonOct 9, 2026 – Nov 13, 2026Amazon issued 1 certificate for boskalis.com from Oct 9, 2026, the latest valid until Apr 24, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Registrant:
Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Apr 17, 2008 – Feb 7, 2012Zone file: Registration records listed site4u.com nameservers (ns1.site4u.com, ns2.site4u.com, ns3.site4u.com) for boskalis.com from Apr 17, 2008 to Feb 7, 2012.Source: From registration records (WHOIS / RDAP archive, who.is)
Jul 25, 2011 – Feb 7, 2012Registrar: Registrar PSI-USA, Inc. dba Domain Robot (IANA 151) in the WHOIS and RDAP records held for boskalis.com, from Jul 25, 2011 to Feb 7, 2012.Source: WHOIS / RDAP archive (who.is)
Jul 3, 2012Registrar: Registrar TUCOWS.COM CO. in the registration data recorded on Jul 3, 2012.Source: WHOIS / RDAP archive (who.is)
Jul 3, 2012 – Oct 17, 2013Zone file: Registration records listed kpn.net nameservers (ns1.kpn.net, ns2.kpn.net) for boskalis.com from Jul 3, 2012 to Oct 17, 2013. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Jul 3, 2012Zone file: boskalis.com's nameservers moved from site4u.com to kpn.net at some point between Feb 7, 2012 and Jul 3, 2012. Last seen at site4u.com: Feb 7, 2012 (registration record). First seen at kpn.net: Jul 3, 2012 (registration record). AboutUs holds no nameserver records for the 5 months 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)
Jan 28, 2013 – Jun 9, 2014Registrar: Registrar TUCOWS, INC. (IANA 69) in the WHOIS and RDAP records held for boskalis.com, from Jan 28, 2013 to Jun 9, 2014.Source: WHOIS / RDAP archive (who.is)
Jan 28, 2013Registrant: The registrant name or organization in the registration record changed; first recorded Jan 28, 2013. That can be a rename, a new contact or a sale; the record alone does not say which.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Oct 18, 2013 – Jun 1, 2014Zone file: kpn.net (ns1.kpn.net, ns2.kpn.net) were the nameservers listed for boskalis.com at every ICANN zone-file snapshot AboutUs holds from Oct 18, 2013 to Jun 1, 2014 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Jun 2, 2014 – Jun 9, 2014Zone file: Registration records listed kpn.net nameservers (ns1.kpn.net, ns2.kpn.net) for boskalis.com from Jun 2, 2014 to Jun 9, 2014. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Jan 24, 2015 – Apr 3, 2018Zone file: firstfind.net, firstfind.nl (ns3.firstfind.nl, ns4.firstfind.nl, ns5.firstfind.net) were the nameservers listed for boskalis.com at every ICANN zone-file snapshot AboutUs holds from Jan 24, 2015 to Apr 3, 2018 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Jan 24, 2015Zone file: boskalis.com's nameservers moved from kpn.net to firstfind.net, firstfind.nl at some point between Jun 9, 2014 and Jan 24, 2015. Last seen at kpn.net: Jun 9, 2014 (registration record). First seen at firstfind.net, firstfind.nl: Jan 24, 2015 (ICANN zone-file snapshot). AboutUs holds no nameserver records for the 8 months in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (registration record → ICANN zone-file snapshot)
Jun 20, 2017 – Nov 13, 2026Registrar: Registrar REALTIME REGISTER B.V. (IANA 839) in the registration data recorded, first on Jun 20, 2017 and most recently on Nov 13, 2026.Source: RDAP, fetched Nov 11, 2026
Jun 20, 2017Registrant: The registrant name or organization in the registration record changed; first recorded Jun 20, 2017. That can be a rename, a new contact or a sale; the record alone does not say which.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Apr 4, 2018 – Mar 9, 2022Zone file: Registration records listed firstfind.net, firstfind.nl nameservers (ns3.firstfind.nl, ns4.firstfind.nl, ns5.firstfind.net) for boskalis.com from Apr 4, 2018 to Mar 9, 2022. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Apr 13, 2022 – Jun 25, 2026Zone file: Registration records listed Microsoft Azure DNS nameservers (ns1-09.azure-dns.com, ns2-09.azure-dns.net, ns3-09.azure-dns.org…) for boskalis.com from Apr 13, 2022 to Jun 25, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Apr 13, 2022Zone file: boskalis.com's nameservers moved from firstfind.net, firstfind.nl to Microsoft Azure DNS between Mar 9, 2022 and Apr 13, 2022. Last seen at firstfind.net, firstfind.nl: Mar 9, 2022 (registration record). First seen at Microsoft Azure DNS: Apr 13, 2022 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Oct 7, 2025 – Nov 13, 2026Certificate: Sectigo Limited issued 32 certificates for boskalis.com from Oct 7, 2025, the latest valid until May 21, 2027. The check on Oct 29, 2026 saw it, expired Nov 7, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Oct 29, 2026
Mar 8, 2026 – Nov 13, 2026Certificate: DigiCert Inc issued 54 certificates for boskalis.com from Mar 8, 2026, the latest valid until May 2, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Mar 28, 2026 – Nov 13, 2026Certificate: Let's Encrypt issued 73 certificates for boskalis.com from Mar 28, 2026, the latest valid until Feb 7, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Apr 11, 2026 – Nov 13, 2026Certificate: Google Trust Services issued 22 certificates for boskalis.com from Apr 11, 2026, the latest valid until Dec 24, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
May 18, 2026 – Nov 13, 2026Certificate: GoDaddy.com issued 2 certificates for boskalis.com from May 18, 2026, the latest valid until May 17, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
May 19, 2026 – Nov 13, 2026Certificate: ZeroSSL GmbH issued 3 certificates for boskalis.com from May 19, 2026, the latest valid until Dec 30, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Jul 7, 2026 – Nov 11, 2026AboutUs record: Authority and Safety last refreshed Nov 11, 2026.Source: AboutUs checks
Sep 8, 2026 – Nov 13, 2026Zone file: First seen in the .com zone file records AboutUs holds on Sep 8, 2026; latest sighting Nov 13, 2026. Nameservers on Nov 13, 2026: ns1-09.azure-dns.com, ns2-09.azure-dns.net, ns3-09.azure-dns.org, ns4-09.azure-dns.info.Source: ICANN CZDS zone file, snapshot Nov 13, 2026
Oct 9, 2026 – Nov 13, 2026Certificate: Amazon issued 1 certificate for boskalis.com from Oct 9, 2026, the latest valid until Apr 24, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)