Verifying against the live site and live WHOIS/DNS…
Common questions
Is htmlref.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 htmlref.com?
Nobody has completed AboutUs's owner verification for htmlref.com. That's true of most sites here — it isn't itself a warning sign.
Checked in the last 30 daysOlder, dated recordFrom registration records
Registered 29 years ago · on AboutUs since 2006 · 1 registrar change since Mar 5, 2011 · no ownership change on record since 2011 · last checked Oct 28, 2026.
Registration
RegisteredJun 9, 1997htmlref.com was registered on Jun 9, 1997.Source: RDAP, fetched Sep 8, 2026
AboutUs record
AboutUs wiki pageAboutUs wiki pageJun 20, 2006 – Nov 9, 2013An AboutUs wiki page described htmlref.com from Jun 20, 2006 to Nov 9, 2013 (4 edits).Source: AboutUs wiki archive, 2006–2023
Registrar
TUCOWS, INC.Mar 5, 2011Registrar TUCOWS, INC. in the registration data recorded on Mar 5, 2011.Source: WHOIS / RDAP archive (who.is)GoDaddy.com, LLCGoDaddy.com, LLC
Ownership
Ownership recordsMar 5, 2011 – Jun 7, 2026Registration records for htmlref.com are held from Mar 5, 2011 to Jun 7, 2026 (34 records). None shows a change of registrant. Privacy-service and redaction changes are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
No ownership changes recorded, 2011–2026
Zone file
No nameserver records held, Mar 2011 – Oct 2013No nameserver records held, Jan 2022 – May 2023Nameservers: UltraDNS (Neustar/Vercara)Mar 5, 2011Registration records listed UltraDNS (Neustar/Vercara) nameservers (pdns1.ultradns.net, pdns2.ultradns.net) for htmlref.com from Mar 5, 2011 to Mar 5, 2011.Source: From registration records (WHOIS / RDAP archive, who.is)
Certificate
Let's EncryptApr 26, 2026 – Oct 29, 2026Let's Encrypt issued 6 certificates for htmlref.com from Apr 26, 2026, the latest valid until Jan 21, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)Google Trust ServicesOct 11, 2026 – Oct 29, 2026
200020102020Jan ’26Oct ’26← last 12 months, drawn wider
Every dated fact on this lifeline (16)
Jun 9, 1997Registration: htmlref.com was registered on Jun 9, 1997.Source: RDAP, fetched Sep 8, 2026
Jun 20, 2006 – Nov 9, 2013AboutUs record: An AboutUs wiki page described htmlref.com from Jun 20, 2006 to Nov 9, 2013 (4 edits).Source: AboutUs wiki archive, 2006–2023
Jul 1, 2006AboutUs record: “The fourth edition of this book represents a significant change in order to fully embrace XHTML. Although the previous edition presented XHTML, most of the examples were still in HTML 4 with explanations about differenc…”Source: AboutUs wiki archive, 2006
Mar 5, 2011Registrar: Registrar TUCOWS, INC. in the registration data recorded on Mar 5, 2011.Source: WHOIS / RDAP archive (who.is)
Mar 5, 2011 – Jun 7, 2026Ownership: Registration records for htmlref.com are held from Mar 5, 2011 to Jun 7, 2026 (34 records). None shows a change of registrant. Privacy-service and redaction changes are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Mar 5, 2011Zone file: Registration records listed UltraDNS (Neustar/Vercara) nameservers (pdns1.ultradns.net, pdns2.ultradns.net) for htmlref.com from Mar 5, 2011 to Mar 5, 2011.
Said about itself in 2006
Jul 1, 2006
“The fourth edition of this book represents a significant change in order to fully embrace XHTML. Although the previous edition presented XHTML, most of the examples were still in HTML 4 with explanations about differenc…”
Source: AboutUs wiki archive, 2006
Current AboutUs recordJun 27, 2026 – Aug 17, 2026 (latest)Authority and Safety last refreshed Aug 17, 2026.Source: AboutUs checks
Dec 2, 2016 – Sep 8, 2026 (latest)
Registrar GoDaddy.com, LLC (IANA 146) in the registration data recorded, first on Dec 2, 2016 and most recently on Sep 8, 2026.
Source: RDAP, fetched Sep 8, 2026
Nameservers: Oracle DynOct 18, 2013 – Apr 3, 2018Oracle Dyn (ns1.p27.dynect.net, ns2.p27.dynect.net, ns3.p27.dynect.net…) were the nameservers listed for htmlref.com at every ICANN zone-file snapshot AboutUs holds from Oct 18, 2013 to Apr 3, 2018 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
DNS moved to Oracle DynOct 18, 2013htmlref.com's nameservers moved from UltraDNS (Neustar/Vercara) to Oracle Dyn at some point between Mar 5, 2011 and Oct 18, 2013. Last seen at UltraDNS (Neustar/Vercara): Mar 5, 2011 (registration record). First seen at Oracle Dyn: Oct 18, 2013 (ICANN zone-file snapshot). AboutUs holds no nameserver records for the about 3 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 → ICANN zone-file snapshot)
Nameservers: Oracle DynApr 4, 2018 – Jan 28, 2022Registration records listed Oracle Dyn nameservers (ns1.p27.dynect.net, ns2.p27.dynect.net, ns3.p27.dynect.net…) for htmlref.com from Apr 4, 2018 to Jan 28, 2022. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Nameservers: CloudflareNameservers: CloudflareMay 31, 2023 – Jun 7, 2026Registration records listed Cloudflare nameservers (rob.ns.cloudflare.com, zara.ns.cloudflare.com) for htmlref.com from May 31, 2023 to Jun 7, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to CloudflareMay 31, 2023htmlref.com's nameservers moved from Oracle Dyn to Cloudflare at some point between Jan 28, 2022 and May 31, 2023. Last seen at Oracle Dyn: Jan 28, 2022 (registration record). First seen at Cloudflare: May 31, 2023 (registration record). AboutUs holds no nameserver records for the 16 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)
Seen in the .com zone fileSep 8, 2026 – Oct 28, 2026 (latest)First seen in the .com zone file records AboutUs holds on Sep 8, 2026; latest sighting Oct 28, 2026. Nameservers on Oct 28, 2026: rob.ns.cloudflare.com, zara.ns.cloudflare.com.Source: ICANN CZDS zone file, snapshot Oct 28, 2026
Google Trust Services issued 2 certificates for htmlref.com from Oct 11, 2026, the latest valid until Jan 9, 2027.
Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Source: From registration records (WHOIS / RDAP archive, who.is)
Oct 18, 2013 – Apr 3, 2018Zone file: Oracle Dyn (ns1.p27.dynect.net, ns2.p27.dynect.net, ns3.p27.dynect.net…) were the nameservers listed for htmlref.com at every ICANN zone-file snapshot AboutUs holds from Oct 18, 2013 to Apr 3, 2018 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Oct 18, 2013Zone file: htmlref.com's nameservers moved from UltraDNS (Neustar/Vercara) to Oracle Dyn at some point between Mar 5, 2011 and Oct 18, 2013. Last seen at UltraDNS (Neustar/Vercara): Mar 5, 2011 (registration record). First seen at Oracle Dyn: Oct 18, 2013 (ICANN zone-file snapshot). AboutUs holds no nameserver records for the about 3 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 → ICANN zone-file snapshot)
Dec 2, 2016 – Sep 8, 2026Registrar: Registrar GoDaddy.com, LLC (IANA 146) in the registration data recorded, first on Dec 2, 2016 and most recently on Sep 8, 2026.Source: RDAP, fetched Sep 8, 2026
Apr 4, 2018 – Jan 28, 2022Zone file: Registration records listed Oracle Dyn nameservers (ns1.p27.dynect.net, ns2.p27.dynect.net, ns3.p27.dynect.net…) for htmlref.com from Apr 4, 2018 to Jan 28, 2022. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
May 31, 2023 – Jun 7, 2026Zone file: Registration records listed Cloudflare nameservers (rob.ns.cloudflare.com, zara.ns.cloudflare.com) for htmlref.com from May 31, 2023 to Jun 7, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
May 31, 2023Zone file: htmlref.com's nameservers moved from Oracle Dyn to Cloudflare at some point between Jan 28, 2022 and May 31, 2023. Last seen at Oracle Dyn: Jan 28, 2022 (registration record). First seen at Cloudflare: May 31, 2023 (registration record). AboutUs holds no nameserver records for the 16 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)
Apr 26, 2026 – Oct 29, 2026Certificate: Let's Encrypt issued 6 certificates for htmlref.com from Apr 26, 2026, the latest valid until Jan 21, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Jun 27, 2026 – Aug 17, 2026AboutUs record: Authority and Safety last refreshed Aug 17, 2026.Source: AboutUs checks
Sep 8, 2026 – Oct 28, 2026Zone file: First seen in the .com zone file records AboutUs holds on Sep 8, 2026; latest sighting Oct 28, 2026. Nameservers on Oct 28, 2026: rob.ns.cloudflare.com, zara.ns.cloudflare.com.Source: ICANN CZDS zone file, snapshot Oct 28, 2026
Oct 11, 2026 – Oct 29, 2026Certificate: Google Trust Services issued 2 certificates for htmlref.com from Oct 11, 2026, the latest valid until Jan 9, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Automated safety checks
DNS (passed)
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 Jun 9, 1997 — 29 years old.
latest result
Registrar on record: GoDaddy.com, LLC — unchanged since AboutUs began tracking (Sep 8, 2026).
checked Sep 30, 2026
The live front page reads as an education or reference site, mainly for specialists in its field.
We withhold an authority number until independent evidence (global rank, link-graph presence) has accrued. The facts we do have about this site are shown below — we'd rather say “not enough signals yet” than invent a low score.
Safety evidence
No unexpired threat-feed result; name-similarity check available (recorded about 72 days ago); 3/3 transport and email checks available (oldest recorded about 72 days ago). This is evidence coverage, not a probability that a website is safe.
No MX and no DMARC (mild)
What htmlref.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 fourth edition of this book represents a significant change in order to fully embrace XHTML. Although the previous edition presented XHTML, most of the examples were still in HTML 4 with explanations about differences with XHTML. Today the situation is reversed with the primary focus on the future of markup with XHTML, CSS and XML rather than the past, filled with tricks and messy table code.
Site history
Dated record — historical facts always carry their date.