Verifying against the live site and live WHOIS/DNS…
Common questions
Is artofproblemsolving.com legit or a scam?
artofproblemsolving.com was registered May 24, 2002 (24 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 artofproblemsolving.com?
Nobody has completed AboutUs's owner verification for artofproblemsolving.com. That's true of most sites here — it isn't itself a warning sign.
When was artofproblemsolving.com registered?
artofproblemsolving.com's registration dates to May 24, 2002 (24 years old), per public registration records. Tucows Domains Inc. is the registrar on record today.
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 May 24, 2002 — 24 years old.
latest result
Registrar on record: Tucows Domains Inc. — unchanged since AboutUs began tracking (Nov 6, 2026).
latest result
HTTPS request succeeded for artofproblemsolving.com.
checked Sep 30, 2026
The site names Art of Problem Solving as the organisation behind it.
checked Sep 30, 2026
The live front page reads as an education or reference site that sells its own services, mainly for students and teachers.
Authority 78/100— ahead of 78% of the August 2026 scored sampleClear
Why this authority score
78 is a percentile: higher than 78% of sites we score.
How it's calculated
Prominence (Tranco rank #31,086)+7
Verified continuity: 24.5 years (RDAP registration)+11
Identity corroboration (capped)+4
Security & email hygiene+5
Calibration adjustment (published map)+13
Model score: 40/99 — what these reason lines add up to.
Published Authority (percentile): 78/100 — this site's rank against the August 2026 scored sample. Public Authority is capped at 99.
What artofproblemsolving.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
You find a math problem in a book, or maybe on a contest, or maybe your teacher tells you the problem. You work on it for a half-hour. Then another half-hour. It bugs you and bugs you because you know that other kid who wins all the trophies knows how to do the problem.
Site history
Dated record — historical facts always carry their date; self-description below is the 2014 record.
2002
Domain registered (May 24, 2002).
2006
First tracked by AboutUs (Sep 28, 2006); profile edited 3 times through 2014.
2014
Self-description at the time:
“ArtOfProblemSolving.com Art of Problem Solving online classes available here”
✓ domain continuity 24 years registered✓ live verified Nov 14, 2026
Safety evidence
No unexpired threat-feed result; name-similarity check available (recorded about 5 days ago); 3/3 transport and email checks available (oldest recorded about 5 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 · artofproblemsolving.com over time
Checked in the last 30 daysOlder, dated recordFrom registration records
Registered 24 years ago · on AboutUs since 2006 · 3 registrar changes since May 17, 2007 · no registrant change on record since 2007 · last checked Nov 13, 2026.
Registration
RegisteredMay 24, 2002artofproblemsolving.com was registered on May 24, 2002.Source: RDAP, fetched Nov 6, 2026
AboutUs record
AboutUs wiki pageAboutUs wiki pageSep 28, 2006 – Apr 8, 2014An AboutUs wiki page described artofproblemsolving.com from Sep 28, 2006 to Apr 8, 2014 (3 edits).Source: AboutUs wiki archive, 2006–2023
Registrar
TUCOWS, INC.TUCOWS, INC.May 17, 2007 – Sep 23, 2011Registrar TUCOWS, INC. (IANA 69) in the WHOIS and RDAP records held for artofproblemsolving.com, from May 17, 2007 to Sep 23, 2011.Source: WHOIS / RDAP archive (who.is)TUCOWS.COM CO.
Registrant
Registrant recordsMay 17, 2007 – Jan 20, 2026Registration records for artofproblemsolving.com are held from May 17, 2007 to Jan 20, 2026 (142 records). None shows a change of registrant. 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
No registrant changes recorded, 2007–2026
Zone file
Nameservers: safesecureweb.comNameservers: safesecureweb.comMay 17, 2007 – Oct 17, 2013Registration records listed safesecureweb.com nameservers (ns1.safesecureweb.com, ns2.safesecureweb.com) for artofproblemsolving.com from May 17, 2007 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)
Certificate
AmazonAmazonJun 16, 2025 – Nov 14, 2026Amazon issued 57 certificates for artofproblemsolving.com from Jun 16, 2025, the latest valid until May 28, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)Sectigo Limited
20052010201520202025Apr ’26← last 12 months, drawn wider
Every dated fact on this lifeline (19)
May 24, 2002Registration: artofproblemsolving.com was registered on May 24, 2002.Source: RDAP, fetched Nov 6, 2026
Jul 1, 2006AboutUs record: “You find a math problem in a book, or maybe on a contest, or maybe your teacher tells you the problem. You work on it for a half-hour. Then another half-hour. It bugs you and bugs you because you know that other kid who…”Source: AboutUs wiki archive, 2006
Sep 28, 2006 – Apr 8, 2014AboutUs record: An AboutUs wiki page described artofproblemsolving.com from Sep 28, 2006 to Apr 8, 2014 (3 edits).Source: AboutUs wiki archive, 2006–2023
May 17, 2007 – Sep 23, 2011Registrar: Registrar TUCOWS, INC. (IANA 69) in the WHOIS and RDAP records held for artofproblemsolving.com, from May 17, 2007 to Sep 23, 2011.Source: WHOIS / RDAP archive (who.is)
May 17, 2007 – Jan 20, 2026Registrant: Registration records for artofproblemsolving.com are held from May 17, 2007 to Jan 20, 2026 (142 records). None shows a change of registrant. 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
Said about itself in 2006
Jul 1, 2006
“You find a math problem in a book, or maybe on a contest, or maybe your teacher tells you the problem. You work on it for a half-hour. Then another half-hour. It bugs you and bugs you because you know that other kid who…”
Source: AboutUs wiki archive, 2006
Current AboutUs recordJul 3, 2026 – Nov 9, 2026 (latest)Authority and Safety last refreshed Nov 9, 2026.Source: AboutUs checks
Nov 20, 2011
Registrar TUCOWS.COM CO. in the registration data recorded on Nov 20, 2011.
Source: WHOIS / RDAP archive (who.is)
TUCOWS, INC.TUCOWS, INC.Dec 9, 2011 – Jan 20, 2026Registrar TUCOWS, INC. (IANA 69) in the WHOIS and RDAP records held for artofproblemsolving.com, from Dec 9, 2011 to Jan 20, 2026.Source: WHOIS / RDAP archive (who.is)
Tucows Domains Inc.Nov 6, 2026 – Nov 14, 2026 (latest)Registrar Tucows Domains Inc. in the registration data recorded, first on Nov 6, 2026 and most recently on Nov 14, 2026.Source: RDAP, fetched Nov 6, 2026
Nameservers: safesecureweb.comOct 18, 2013 – Mar 27, 2015safesecureweb.com (ns1.safesecureweb.com, ns2.safesecureweb.com) were the nameservers listed for artofproblemsolving.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)
Nameservers: CloudflareSep 23, 2015 – Apr 3, 2018Cloudflare (emma.ns.cloudflare.com, ray.ns.cloudflare.com) were the nameservers listed for artofproblemsolving.com at every ICANN zone-file snapshot AboutUs holds from Sep 23, 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 CloudflareSep 23, 2015artofproblemsolving.com's nameservers moved from safesecureweb.com to Cloudflare at some point between Mar 27, 2015 and Sep 23, 2015. Last seen at safesecureweb.com: Mar 27, 2015 (ICANN zone-file snapshot). First seen at Cloudflare: 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: CloudflareNameservers: CloudflareApr 4, 2018 – Jan 20, 2026Registration records listed Cloudflare nameservers (emma.ns.cloudflare.com, ray.ns.cloudflare.com) for artofproblemsolving.com from Apr 4, 2018 to Jan 20, 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 fileJul 28, 2026 – Nov 13, 2026 (latest)First seen in the .com zone file records AboutUs holds on Jul 28, 2026; latest sighting Nov 13, 2026. Nameservers on Nov 13, 2026: emma.ns.cloudflare.com, ray.ns.cloudflare.com.Source: ICANN CZDS zone file, snapshot Nov 13, 2026
Sectigo Limited
Sep 9, 2025 – Nov 14, 2026
Sectigo Limited issued 2 certificates for artofproblemsolving.com from Sep 9, 2025, the latest valid until Apr 25, 2027.
Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Let's EncryptApr 1, 2026 – Nov 14, 2026Let's Encrypt issued 95 certificates for artofproblemsolving.com from Apr 1, 2026, the latest valid until Feb 10, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Google Trust ServicesApr 20, 2026 – Nov 14, 2026 (latest)Google Trust Services issued 44 certificates for artofproblemsolving.com from Apr 20, 2026, the latest valid until Feb 2, 2027. Seen in use on Nov 6, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Nov 6, 2026
May 17, 2007 – Oct 17, 2013
Zone file: Registration records listed safesecureweb.com nameservers (ns1.safesecureweb.com, ns2.safesecureweb.com) for artofproblemsolving.com from May 17, 2007 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)
Nov 20, 2011Registrar: Registrar TUCOWS.COM CO. in the registration data recorded on Nov 20, 2011.Source: WHOIS / RDAP archive (who.is)
Dec 9, 2011 – Jan 20, 2026Registrar: Registrar TUCOWS, INC. (IANA 69) in the WHOIS and RDAP records held for artofproblemsolving.com, from Dec 9, 2011 to Jan 20, 2026.Source: WHOIS / RDAP archive (who.is)
Oct 18, 2013 – Mar 27, 2015Zone file: safesecureweb.com (ns1.safesecureweb.com, ns2.safesecureweb.com) were the nameservers listed for artofproblemsolving.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)
Sep 23, 2015 – Apr 3, 2018Zone file: Cloudflare (emma.ns.cloudflare.com, ray.ns.cloudflare.com) were the nameservers listed for artofproblemsolving.com at every ICANN zone-file snapshot AboutUs holds from Sep 23, 2015 to Apr 3, 2018 (snapshots exist for only part of 2013–2018).Source: ICANN zone-file snapshots, 2013–2018 (legacy archive)
Sep 23, 2015Zone file: artofproblemsolving.com's nameservers moved from safesecureweb.com to Cloudflare at some point between Mar 27, 2015 and Sep 23, 2015. Last seen at safesecureweb.com: Mar 27, 2015 (ICANN zone-file snapshot). First seen at Cloudflare: 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)
Apr 4, 2018 – Jan 20, 2026Zone file: Registration records listed Cloudflare nameservers (emma.ns.cloudflare.com, ray.ns.cloudflare.com) for artofproblemsolving.com from Apr 4, 2018 to Jan 20, 2026. Days a zone file covers are shown from the zone file instead.Source: From registration records (WHOIS / RDAP archive, who.is)
Jun 16, 2025 – Nov 14, 2026Certificate: Amazon issued 57 certificates for artofproblemsolving.com from Jun 16, 2025, the latest valid until May 28, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Sep 9, 2025 – Nov 14, 2026Certificate: Sectigo Limited issued 2 certificates for artofproblemsolving.com from Sep 9, 2025, the latest valid until Apr 25, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Apr 1, 2026 – Nov 14, 2026Certificate: Let's Encrypt issued 95 certificates for artofproblemsolving.com from Apr 1, 2026, the latest valid until Feb 10, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Apr 20, 2026 – Nov 14, 2026Certificate: Google Trust Services issued 44 certificates for artofproblemsolving.com from Apr 20, 2026, the latest valid until Feb 2, 2027. Seen in use on Nov 6, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Nov 6, 2026
Jul 3, 2026 – Nov 9, 2026AboutUs record: Authority and Safety last refreshed Nov 9, 2026.Source: AboutUs checks
Jul 28, 2026 – Nov 13, 2026Zone file: First seen in the .com zone file records AboutUs holds on Jul 28, 2026; latest sighting Nov 13, 2026. Nameservers on Nov 13, 2026: emma.ns.cloudflare.com, ray.ns.cloudflare.com.Source: ICANN CZDS zone file, snapshot Nov 13, 2026
Nov 6, 2026 – Nov 14, 2026Registrar: Registrar Tucows Domains Inc. in the registration data recorded, first on Nov 6, 2026 and most recently on Nov 14, 2026.Source: RDAP, fetched Nov 6, 2026