Verifying against the live site and live WHOIS/DNS…
Common questions
Is theknowledgeonline.com 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 theknowledgeonline.com?
Nobody has completed AboutUs's owner verification for theknowledgeonline.com. 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.
3 of 4 safety checks passed (Oct 28, 2026).
Registered 1999 · site is live · HTTPS valid
TheKnowledgeOnline.com oil gas and coffee
The Knowledge Online is a directory of over 18,000 contacts and services for the UK film, television, video, and commercial production industries, including freelance crew and technicians. Published by Hollis Publishing Ltd, it serves production professionals seeking crew, equipment, and practical production information. The directory is available in print and web formats and is regarded as a standard reference in UK production.
Checked in the last 30 daysOlder, dated recordFrom registration records
Registered 26 years ago · on AboutUs since 2006 · 3 registrar changes since Jan 4, 2011 · 3 ownership changes since 2007 · last checked Oct 23, 2026.
Registration
RegisteredDec 22, 1999theknowledgeonline.com was registered on Dec 22, 1999.Source: RDAP, fetched Aug 26, 2026
AboutUs record
AboutUs wiki pageAboutUs wiki pageJun 21, 2006 – Nov 5, 2013An AboutUs wiki page described theknowledgeonline.com from Jun 21, 2006 to Nov 5, 2013 (4 edits).Source: AboutUs wiki archive, 2006–2023
Registrar
TUCOWS, INC.Jan 4, 2011 – May 3, 2013Registrar TUCOWS, INC. in the WHOIS and RDAP records held for theknowledgeonline.com, from Jan 4, 2011 to May 3, 2013.Source: WHOIS / RDAP archive (who.is)Lexsynergy LimitedMar 7, 2014Registrar Lexsynergy Limited (IANA 1466) in the registration data recorded on Mar 7, 2014.
Ownership
Ownership recordsJun 12, 2007 – Apr 5, 2026Registration records for theknowledgeonline.com are held from Jun 12, 2007 to Apr 5, 2026 (75 records). 3 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
Zone file
Nameservers: abasoft.co.ukJan 4, 2011 – Oct 6, 2011Registration records listed abasoft.co.uk nameservers (dennis.abasoft.co.uk, jira.abasoft.co.uk) for theknowledgeonline.com from Jan 4, 2011 to Oct 6, 2011.Source: From registration records (WHOIS / RDAP archive, who.is)
Certificate
Let's EncryptApr 23, 2026 – Oct 28, 2026 (latest)Let's Encrypt issued 7 certificates for theknowledgeonline.com from Apr 23, 2026, the latest valid until Jan 18, 2027. Seen in use on Oct 7, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Oct 7, 2026
200020102020Jan ’26Oct ’26← last 12 months, drawn wider
Every dated fact on this lifeline (26)
Dec 22, 1999Registration: theknowledgeonline.com was registered on Dec 22, 1999.Source: RDAP, fetched Aug 26, 2026
Jun 21, 2006 – Nov 5, 2013AboutUs record: An AboutUs wiki page described theknowledgeonline.com from Jun 21, 2006 to Nov 5, 2013 (4 edits).Source: AboutUs wiki archive, 2006–2023
Jul 1, 2006AboutUs record: “The Knowledge, available in printed and web formats, is regarded as a 'bible' to the UK film, television, video and commercial production industries. It is packed full of all the contacts and services you will need at a…”Source: AboutUs wiki archive, 2006
Jun 12, 2007 – Apr 5, 2026Ownership: Registration records for theknowledgeonline.com are held from Jun 12, 2007 to Apr 5, 2026 (75 records). 3 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
Jan 4, 2011 – May 3, 2013Registrar: Registrar TUCOWS, INC. in the WHOIS and RDAP records held for theknowledgeonline.com, from Jan 4, 2011 to May 3, 2013.Source: WHOIS / RDAP archive (who.is)
Jan 4, 2011
Said about itself in 2006
Jul 1, 2006
“The Knowledge, available in printed and web formats, is regarded as a 'bible' to the UK film, television, video and commercial production industries. It is packed full of all the contacts and services you will need at a…”
Source: AboutUs wiki archive, 2006
Current AboutUs recordJul 12, 2026 – Aug 26, 2026 (latest)Authority and Safety last refreshed Aug 26, 2026.Source: AboutUs checks
Source: WHOIS / RDAP archive (who.is)
REGISTER S.P.A.REGISTER S.P.A.Nov 2, 2016 – Apr 5, 2026Registrar REGISTER S.P.A. (IANA 168) in the WHOIS and RDAP records held for theknowledgeonline.com, from Nov 2, 2016 to Apr 5, 2026.Source: WHOIS / RDAP archive (who.is)
Register SPAJul 24, 2026 – Oct 18, 2026 (latest)Registrar Register SPA in the registration data recorded, first on Jul 24, 2026 and most recently on Oct 18, 2026.Source: RDAP, fetched Aug 26, 2026
Ownership change
Jan 4, 2011
The registrant name or organization in the registration record changed; first recorded Jan 4, 2011. Who it changed to is in the full report.
Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Ownership changeMar 7, 2014The registrant name or organization in the registration record changed; first recorded Mar 7, 2014. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Ownership changeNov 2, 2016The registrant name or organization in the registration record changed; first recorded Nov 2, 2016. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
3 ownership changes, 2007–2026
Nameservers: rackspace.com
Oct 17, 2011 – May 15, 2013
Registration records listed rackspace.com nameservers (ns.rackspace.com, ns2.rackspace.com) for theknowledgeonline.com from Oct 17, 2011 to May 15, 2013.
Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to rackspace.comOct 17, 2011theknowledgeonline.com's nameservers moved from abasoft.co.uk to rackspace.com between Oct 6, 2011 and Oct 17, 2011. Last seen at abasoft.co.uk: Oct 6, 2011 (registration record). First seen at rackspace.com: Oct 17, 2011 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Nameservers: lexsynergy.info, lexsynergy.net, lexsynergy.usOct 18, 2013 – Mar 27, 2015lexsynergy.info, lexsynergy.net, lexsynergy.us (ns1.lexsynergy.net, ns2.lexsynergy.us, ns3.lexsynergy.info) were the nameservers listed for theknowledgeonline.com at every ICANN zone-file snapshot AboutUs holds from Oct 18, 2013 to Mar 27, 2015 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
DNS moved to lexsynergy.info, lexsynergy.net, lexsynergy.usOct 18, 2013theknowledgeonline.com's nameservers moved from rackspace.com to lexsynergy.info, lexsynergy.net, lexsynergy.us at some point between May 15, 2013 and Oct 18, 2013. Last seen at rackspace.com: May 15, 2013 (registration record). First seen at lexsynergy.info, lexsynergy.net, lexsynergy.us: Oct 18, 2013 (ICANN zone-file snapshot). 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 → ICANN zone-file snapshot)
Nameservers: phase8.netSep 23, 2015 – Apr 1, 2016phase8.net (ns0.phase8.net, ns1.phase8.net, ns2.phase8.net) were the nameservers listed for theknowledgeonline.com at every ICANN zone-file snapshot AboutUs holds from Sep 23, 2015 to Apr 1, 2016 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
DNS moved to phase8.netSep 23, 2015theknowledgeonline.com's nameservers moved from lexsynergy.info, lexsynergy.net, lexsynergy.us to phase8.net at some point between Mar 27, 2015 and Sep 23, 2015. Last seen at lexsynergy.info, lexsynergy.net, lexsynergy.us: Mar 27, 2015 (ICANN zone-file snapshot). First seen at phase8.net: Sep 23, 2015 (ICANN zone-file snapshot). AboutUs holds no nameserver records for the 6 months in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (ICANN zone-file snapshot → ICANN zone-file snapshot)
Nameservers: CloudflareNov 2, 2016 – Apr 2, 2018Registration records listed Cloudflare nameservers (arch.ns.cloudflare.com, sharon.ns.cloudflare.com) for theknowledgeonline.com from Nov 2, 2016 to Apr 2, 2018. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to CloudflareNov 2, 2016theknowledgeonline.com's nameservers moved from phase8.net to Cloudflare at some point between Apr 1, 2016 and Nov 2, 2016. Last seen at phase8.net: Apr 1, 2016 (ICANN zone-file snapshot). First seen at Cloudflare: Nov 2, 2016 (registration record). AboutUs holds no nameserver records for the 7 months in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (ICANN zone-file snapshot → registration record)
Nameservers: CloudflareApr 3, 2018Cloudflare (arch.ns.cloudflare.com, sharon.ns.cloudflare.com) were the nameservers listed for theknowledgeonline.com at every ICANN zone-file snapshot AboutUs holds from Apr 3, 2018 to Apr 3, 2018 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Nameservers: CloudflareNameservers: CloudflareApr 4, 2018 – Apr 5, 2026Registration records listed Cloudflare nameservers (arch.ns.cloudflare.com, sharon.ns.cloudflare.com) for theknowledgeonline.com from Apr 4, 2018 to Apr 5, 2026. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Seen in the .com zone fileSep 8, 2026 – Oct 23, 2026 (latest)First seen in the .com zone file records AboutUs holds on Sep 8, 2026; latest sighting Oct 23, 2026. Nameservers on Oct 23, 2026: arch.ns.cloudflare.com, sharon.ns.cloudflare.com.Source: ICANN CZDS zone file, snapshot Oct 23, 2026
Google Trust Services
Sep 25, 2026 – Oct 28, 2026
Google Trust Services issued 1 certificate for theknowledgeonline.com from Sep 25, 2026, the latest valid until Dec 24, 2026.
Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Ownership: The registrant name or organization in the registration record changed; first recorded Jan 4, 2011. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Jan 4, 2011 – Oct 6, 2011Zone file: Registration records listed abasoft.co.uk nameservers (dennis.abasoft.co.uk, jira.abasoft.co.uk) for theknowledgeonline.com from Jan 4, 2011 to Oct 6, 2011.Source: From registration records (WHOIS / RDAP archive, who.is)
Oct 17, 2011 – May 15, 2013Zone file: Registration records listed rackspace.com nameservers (ns.rackspace.com, ns2.rackspace.com) for theknowledgeonline.com from Oct 17, 2011 to May 15, 2013.Source: From registration records (WHOIS / RDAP archive, who.is)
Oct 17, 2011Zone file: theknowledgeonline.com's nameservers moved from abasoft.co.uk to rackspace.com between Oct 6, 2011 and Oct 17, 2011. Last seen at abasoft.co.uk: Oct 6, 2011 (registration record). First seen at rackspace.com: Oct 17, 2011 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Oct 18, 2013 – Mar 27, 2015Zone file: lexsynergy.info, lexsynergy.net, lexsynergy.us (ns1.lexsynergy.net, ns2.lexsynergy.us, ns3.lexsynergy.info) were the nameservers listed for theknowledgeonline.com at every ICANN zone-file snapshot AboutUs holds from Oct 18, 2013 to Mar 27, 2015 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Oct 18, 2013Zone file: theknowledgeonline.com's nameservers moved from rackspace.com to lexsynergy.info, lexsynergy.net, lexsynergy.us at some point between May 15, 2013 and Oct 18, 2013. Last seen at rackspace.com: May 15, 2013 (registration record). First seen at lexsynergy.info, lexsynergy.net, lexsynergy.us: Oct 18, 2013 (ICANN zone-file snapshot). 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 → ICANN zone-file snapshot)
Mar 7, 2014Registrar: Registrar Lexsynergy Limited (IANA 1466) in the registration data recorded on Mar 7, 2014.Source: WHOIS / RDAP archive (who.is)
Mar 7, 2014Ownership: The registrant name or organization in the registration record changed; first recorded Mar 7, 2014. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Sep 23, 2015 – Apr 1, 2016Zone file: phase8.net (ns0.phase8.net, ns1.phase8.net, ns2.phase8.net) were the nameservers listed for theknowledgeonline.com at every ICANN zone-file snapshot AboutUs holds from Sep 23, 2015 to Apr 1, 2016 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Sep 23, 2015Zone file: theknowledgeonline.com's nameservers moved from lexsynergy.info, lexsynergy.net, lexsynergy.us to phase8.net at some point between Mar 27, 2015 and Sep 23, 2015. Last seen at lexsynergy.info, lexsynergy.net, lexsynergy.us: Mar 27, 2015 (ICANN zone-file snapshot). First seen at phase8.net: Sep 23, 2015 (ICANN zone-file snapshot). AboutUs holds no nameserver records for the 6 months in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (ICANN zone-file snapshot → ICANN zone-file snapshot)
Nov 2, 2016 – Apr 5, 2026Registrar: Registrar REGISTER S.P.A. (IANA 168) in the WHOIS and RDAP records held for theknowledgeonline.com, from Nov 2, 2016 to Apr 5, 2026.Source: WHOIS / RDAP archive (who.is)
Nov 2, 2016Ownership: The registrant name or organization in the registration record changed; first recorded Nov 2, 2016. Who it changed to is in the full report.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Nov 2, 2016 – Apr 2, 2018Zone file: Registration records listed Cloudflare nameservers (arch.ns.cloudflare.com, sharon.ns.cloudflare.com) for theknowledgeonline.com from Nov 2, 2016 to Apr 2, 2018. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Nov 2, 2016Zone file: theknowledgeonline.com's nameservers moved from phase8.net to Cloudflare at some point between Apr 1, 2016 and Nov 2, 2016. Last seen at phase8.net: Apr 1, 2016 (ICANN zone-file snapshot). First seen at Cloudflare: Nov 2, 2016 (registration record). AboutUs holds no nameserver records for the 7 months in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (ICANN zone-file snapshot → registration record)
Apr 3, 2018Zone file: Cloudflare (arch.ns.cloudflare.com, sharon.ns.cloudflare.com) were the nameservers listed for theknowledgeonline.com at every ICANN zone-file snapshot AboutUs holds from Apr 3, 2018 to Apr 3, 2018 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Apr 4, 2018 – Apr 5, 2026Zone file: Registration records listed Cloudflare nameservers (arch.ns.cloudflare.com, sharon.ns.cloudflare.com) for theknowledgeonline.com from Apr 4, 2018 to Apr 5, 2026. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Apr 23, 2026 – Oct 28, 2026Certificate: Let's Encrypt issued 7 certificates for theknowledgeonline.com from Apr 23, 2026, the latest valid until Jan 18, 2027. Seen in use on Oct 7, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Oct 7, 2026
Jul 12, 2026 – Aug 26, 2026AboutUs record: Authority and Safety last refreshed Aug 26, 2026.Source: AboutUs checks
Jul 24, 2026 – Oct 18, 2026Registrar: Registrar Register SPA in the registration data recorded, first on Jul 24, 2026 and most recently on Oct 18, 2026.Source: RDAP, fetched Aug 26, 2026
Sep 8, 2026 – Oct 23, 2026Zone file: First seen in the .com zone file records AboutUs holds on Sep 8, 2026; latest sighting Oct 23, 2026. Nameservers on Oct 23, 2026: arch.ns.cloudflare.com, sharon.ns.cloudflare.com.Source: ICANN CZDS zone file, snapshot Oct 23, 2026
Sep 25, 2026 – Oct 28, 2026Certificate: Google Trust Services issued 1 certificate for theknowledgeonline.com from Sep 25, 2026, the latest valid until Dec 24, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Automated safety checks
DNS (passed)
HTTPS (passed)
Page metadata (passed)
Security headers (failed)
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 Dec 22, 1999 — 26 years old.
latest result
Registrar on record: Register SPA — unchanged since AboutUs began tracking (Jul 24, 2026).
latest result
HTTPS request succeeded for theknowledgeonline.com.
checked Sep 30, 2026
The live front page reads as a business-services site that runs a marketplace.
Authority 46/100— ahead of 46% of the August 2026 scored sampleClear
Why this authority score
46 is a percentile: higher than 46% of sites we score.
How it's calculated
Prominence (Tranco rank #613,794)+5
Verified continuity: 26.9 years (RDAP registration)+11
Security & email hygiene+3
Calibration adjustment (published map)+6
Model score: 25/99 — what these reason lines add up to.
Published Authority (percentile): 46/100 — 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 63 days ago); 3/3 transport and email checks available (oldest recorded about 63 days ago). This is evidence coverage, not a probability that a website is safe.
What theknowledgeonline.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
The Knowledge, available in printed and web formats, is regarded as a 'bible' to the UK film, television, video and commercial production industries. It is packed full of all the contacts and services you will need at any stage in the production process. The Knowledge contains over 18,000 entries, including over 10,100 freelance crew & technicians, spanning 1,082 classifications.
Site history
Dated record — historical facts always carry their date.