Verifying against the live site and live WHOIS/DNS…
Common questions
Is htmlpurifier.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 htmlpurifier.org?
Nobody has completed AboutUs's owner verification for htmlpurifier.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.
Lifeline · htmlpurifier.org over time
Checked in the last 30 daysOlder, dated recordFrom registration records
Registered 19 years ago · on AboutUs since 2007 · 1 registrar change since Jun 1, 2017 · no ownership change on record since 2017 · last checked Oct 17, 2026.
Registration
RegisteredApr 10, 2007htmlpurifier.org was registered on Apr 10, 2007.Source: RDAP, fetched Sep 28, 2026
AboutUs record
AboutUs wiki pageAboutUs wiki pageSep 28, 2007 – Nov 15, 2013An AboutUs wiki page described htmlpurifier.org from Sep 28, 2007 to Nov 15, 2013 (2 edits).Source: AboutUs wiki archive, 2006–2023Said about itself in 2007
Registrar
ENOM, INC.Jun 1, 2017 – Sep 2, 2018Registrar ENOM, INC. (IANA 48) in the WHOIS and RDAP records held for htmlpurifier.org, from Jun 1, 2017 to Sep 2, 2018.Source: WHOIS / RDAP archive (who.is)NAMECHEAP INC
Ownership
Ownership recordsJun 1, 2017 – Jun 9, 2026Registration records for htmlpurifier.org are held from Jun 1, 2017 to Jun 9, 2026 (50 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, 2017–2026
Zone file
Nameservers: NamecheapNameservers: NamecheapJun 1, 2017 – Jun 9, 2026Registration records listed Namecheap nameservers (dns1.registrar-servers.com, dns2.registrar-servers.com, dns3.registrar-servers.com…) for htmlpurifier.org from Jun 1, 2017 to Jun 9, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Certificate
Certificate from Internet2Aug 18, 2026 – Oct 17, 2026 (latest)Internet2 certificate valid Aug 18, 2026 to Mar 5, 2027, as seen on Oct 17, 2026.Source: TLS check, Oct 17, 2026
2010201520202025Jan ’26Oct ’26← last 12 months, drawn wider
Every dated fact on this lifeline (9)
Apr 10, 2007Registration: htmlpurifier.org was registered on Apr 10, 2007.Source: RDAP, fetched Sep 28, 2026
Jul 1, 2007AboutUs record: “HTML filter that guards against XSS and ensures standards-compliant output.”Source: AboutUs wiki archive, 2007
Sep 28, 2007 – Nov 15, 2013AboutUs record: An AboutUs wiki page described htmlpurifier.org from Sep 28, 2007 to Nov 15, 2013 (2 edits).Source: AboutUs wiki archive, 2006–2023
Jun 1, 2017 – Sep 2, 2018Registrar: Registrar ENOM, INC. (IANA 48) in the WHOIS and RDAP records held for htmlpurifier.org, from Jun 1, 2017 to Sep 2, 2018.Source: WHOIS / RDAP archive (who.is)
Jun 1, 2017 – Jun 9, 2026Ownership: Registration records for htmlpurifier.org are held from Jun 1, 2017 to Jun 9, 2026 (50 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
Jun 1, 2017 – Jun 9, 2026Zone file: Registration records listed Namecheap nameservers (dns1.registrar-servers.com, dns2.registrar-servers.com, dns3.registrar-servers.com…) for htmlpurifier.org from Jun 1, 2017 to Jun 9, 2026.
Jul 1, 2007
“HTML filter that guards against XSS and ensures standards-compliant output.”
Source: AboutUs wiki archive, 2007
Current AboutUs recordJul 18, 2026 – Sep 28, 2026 (latest)Authority and Safety last refreshed Sep 28, 2026.Source: AboutUs checks
NAMECHEAP INC
Oct 4, 2018 – Oct 17, 2026 (latest)
Registrar NAMECHEAP INC (IANA 1068) in the registration data recorded, first on Oct 4, 2018 and most recently on Oct 17, 2026.
Source: RDAP, fetched Sep 28, 2026
Source: From registration records (WHOIS / RDAP archive, who.is)
Oct 4, 2018 – Oct 17, 2026Registrar: Registrar NAMECHEAP INC (IANA 1068) in the registration data recorded, first on Oct 4, 2018 and most recently on Oct 17, 2026.Source: RDAP, fetched Sep 28, 2026
Jul 18, 2026 – Sep 28, 2026AboutUs record: Authority and Safety last refreshed Sep 28, 2026.Source: AboutUs checks
Aug 18, 2026 – Oct 17, 2026Certificate: Internet2 certificate valid Aug 18, 2026 to Mar 5, 2027, as seen on Oct 17, 2026.Source: TLS check, Oct 17, 2026
1 of 2 safety checks passed (Oct 29, 2026).
Registered 2007 · AboutUs could not get a response over HTTPS when it checked (Oct 29, 2026)
HTML Purifier is an open-source PHP library that filters HTML input to prevent XSS attacks while ensuring standards-compliant output. It serves developers who need to sanitize user-generated HTML in web applications.
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 Apr 10, 2007 — 19 years old.
latest result
Registrar on record: NameCheap, Inc. — unchanged since AboutUs began tracking (Oct 17, 2026).
Authority 50/100— ahead of 50% of the August 2026 scored sampleClear
Why this authority score
50 is a percentile: higher than 50% of sites we score.
How it's calculated
Prominence (Tranco rank #97,188)+7
Verified continuity: 19.6 years (RDAP registration)+10
Security & email hygiene+2
Calibration adjustment (published map)+8
Model score: 27/99 — what these reason lines add up to.
Published Authority (percentile): 50/100 — 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 30 days ago); 3/3 transport and email checks available (oldest recorded about 30 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 htmlpurifier.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
HTML filter that guards against XSS and ensures standards-compliant output.
Site history
Dated record — historical facts always carry their date.
2007
Domain registered (Apr 10, 2007).
2007
First tracked by AboutUs (Sep 28, 2007); profile edited 2 times through 2013.