Verifying against the live site and live WHOIS/DNS…
Common questions
Is constitutioncenter.org legit or a scam?
constitutioncenter.org was registered Jun 19, 1997 (29 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 constitutioncenter.org?
Nobody has completed AboutUs's owner verification for constitutioncenter.org. That's true of most sites here — it isn't itself a warning sign.
When was constitutioncenter.org registered?
constitutioncenter.org's registration dates to Jun 19, 1997 (29 years old), per public registration records. Cloudflare, Inc. is the registrar on record today.
Correct a description, link or other detail. Submissions are reviewed before publication.
Lifeline · constitutioncenter.org over time
Checked in the last 30 daysOlder, dated recordFrom registration records
Registered 29 years ago · on AboutUs since 2013 · 2 registrar changes since Aug 25, 2016 · 1 registrant change since 2016 · last checked Nov 7, 2026.
Registration
RegisteredJun 19, 1997constitutioncenter.org was registered on Jun 19, 1997.Source: RDAP, fetched Nov 7, 2026
AboutUs record
AboutUs wiki pageNov 6, 2013An AboutUs wiki page described constitutioncenter.org from Nov 6, 2013 to Nov 6, 2013 (1 edit).Source: AboutUs wiki archive, 2006–2023Said about itself in 2013Jul 1, 2013
Registrar
Register.com, Inc.Aug 25, 2016 – Apr 15, 2021Registrar Register.com, Inc. (IANA 9) in the WHOIS and RDAP records held for constitutioncenter.org, from Aug 25, 2016 to Apr 15, 2021.Source: WHOIS / RDAP archive (who.is)Squarespace Domains II LLC
Registrant
Registrant recordsAug 25, 2016 – Jun 15, 2026Registration records for constitutioncenter.org are held from Aug 25, 2016 to Jun 15, 2026 (91 records). 1 change of registrant name or organization is 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: register.comAug 25, 2016 – Oct 5, 2016Registration records listed register.com nameservers (dns01.gpn.register.com, dns02.gpn.register.com, dns03.gpn.register.com…) for constitutioncenter.org from Aug 25, 2016 to Oct 5, 2016.Source: From registration records (WHOIS / RDAP archive, who.is)Nameservers: Cloudflare
Certificate
AmazonAmazonAug 12, 2025 – Nov 13, 2026Amazon issued 4 certificates for constitutioncenter.org from Aug 12, 2025, the latest valid until May 4, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)DigiCert Inc
200020102020Jan ’26Oct ’26← last 12 months, drawn wider
Every dated fact on this lifeline (16)
Jun 19, 1997Registration: constitutioncenter.org was registered on Jun 19, 1997.Source: RDAP, fetched Nov 7, 2026
Jul 1, 2013AboutUs record: “The National Constitution Center is an independent, non-partisan, and non-profit organization dedicated to increasing public understanding of, and apprecia...”Source: AboutUs wiki archive, 2013
Nov 6, 2013AboutUs record: An AboutUs wiki page described constitutioncenter.org from Nov 6, 2013 to Nov 6, 2013 (1 edit).Source: AboutUs wiki archive, 2006–2023
Aug 25, 2016 – Apr 15, 2021Registrar: Registrar Register.com, Inc. (IANA 9) in the WHOIS and RDAP records held for constitutioncenter.org, from Aug 25, 2016 to Apr 15, 2021.Source: WHOIS / RDAP archive (who.is)
Aug 25, 2016 – Jun 15, 2026Registrant: Registration records for constitutioncenter.org are held from Aug 25, 2016 to Jun 15, 2026 (91 records). 1 change of registrant name or organization is 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
Aug 25, 2016 – Oct 5, 2016
“The National Constitution Center is an independent, non-partisan, and non-profit organization dedicated to increasing public understanding of, and apprecia...”
Source: AboutUs wiki archive, 2013
Current AboutUs recordJun 22, 2026 – Nov 7, 2026 (latest)Authority and Safety last refreshed Nov 7, 2026.Source: AboutUs checks
May 16, 2021 – Sep 23, 2023
Registrar Squarespace Domains II LLC (IANA 895) in the WHOIS and RDAP records held for constitutioncenter.org, from May 16, 2021 to Sep 23, 2023.
Source: WHOIS / RDAP archive (who.is)
Cloudflare, Inc.Cloudflare, Inc.Oct 25, 2023 – Nov 12, 2026 (latest)Registrar Cloudflare, Inc. (IANA 1910) in the registration data recorded, first on Oct 25, 2023 and most recently on Nov 12, 2026.Source: RDAP, fetched Nov 7, 2026
Registrant changeOct 8, 2020The registrant name or organization in the registration record changed; first recorded Oct 8, 2020. 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
1 registrant change, 2016–2026
Nameservers: CloudflareOct 8, 2016 – Jun 15, 2026Registration records listed Cloudflare nameservers (jake.ns.cloudflare.com, kate.ns.cloudflare.com) for constitutioncenter.org from Oct 8, 2016 to Jun 15, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to CloudflareOct 8, 2016constitutioncenter.org's nameservers moved from register.com to Cloudflare between Oct 5, 2016 and Oct 8, 2016. Last seen at register.com: Oct 5, 2016 (registration record). First seen at Cloudflare: Oct 8, 2016 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Feb 21, 2026 – Nov 13, 2026
DigiCert Inc issued 75 certificates for constitutioncenter.org from Feb 21, 2026, the latest valid until May 29, 2027.
Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Let's EncryptMar 28, 2026 – Nov 13, 2026Let's Encrypt issued 51 certificates for constitutioncenter.org from Mar 28, 2026, the latest valid until Feb 7, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Google Trust ServicesMay 1, 2026 – Nov 13, 2026 (latest)Google Trust Services issued 29 certificates for constitutioncenter.org from May 1, 2026, the latest valid until Jan 31, 2027. Seen in use on Nov 2, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Nov 2, 2026
Zone file: Registration records listed register.com nameservers (dns01.gpn.register.com, dns02.gpn.register.com, dns03.gpn.register.com…) for constitutioncenter.org from Aug 25, 2016 to Oct 5, 2016.Source: From registration records (WHOIS / RDAP archive, who.is)
Oct 8, 2016 – Jun 15, 2026Zone file: Registration records listed Cloudflare nameservers (jake.ns.cloudflare.com, kate.ns.cloudflare.com) for constitutioncenter.org from Oct 8, 2016 to Jun 15, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Oct 8, 2016Zone file: constitutioncenter.org's nameservers moved from register.com to Cloudflare between Oct 5, 2016 and Oct 8, 2016. Last seen at register.com: Oct 5, 2016 (registration record). First seen at Cloudflare: Oct 8, 2016 (registration record).Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Oct 8, 2020Registrant: The registrant name or organization in the registration record changed; first recorded Oct 8, 2020. 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
May 16, 2021 – Sep 23, 2023Registrar: Registrar Squarespace Domains II LLC (IANA 895) in the WHOIS and RDAP records held for constitutioncenter.org, from May 16, 2021 to Sep 23, 2023.Source: WHOIS / RDAP archive (who.is)
Oct 25, 2023 – Nov 12, 2026Registrar: Registrar Cloudflare, Inc. (IANA 1910) in the registration data recorded, first on Oct 25, 2023 and most recently on Nov 12, 2026.Source: RDAP, fetched Nov 7, 2026
Aug 12, 2025 – Nov 13, 2026Certificate: Amazon issued 4 certificates for constitutioncenter.org from Aug 12, 2025, the latest valid until May 4, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Feb 21, 2026 – Nov 13, 2026Certificate: DigiCert Inc issued 75 certificates for constitutioncenter.org from Feb 21, 2026, the latest valid until May 29, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Mar 28, 2026 – Nov 13, 2026Certificate: Let's Encrypt issued 51 certificates for constitutioncenter.org from Mar 28, 2026, the latest valid until Feb 7, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
May 1, 2026 – Nov 13, 2026Certificate: Google Trust Services issued 29 certificates for constitutioncenter.org from May 1, 2026, the latest valid until Jan 31, 2027. Seen in use on Nov 2, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader); TLS check, Nov 2, 2026
Jun 22, 2026 – Nov 7, 2026AboutUs record: Authority and Safety last refreshed Nov 7, 2026.Source: AboutUs checks
Registered 1997 · site is live · HTTPS valid
The National Constitution Center is an independent, non-partisan nonprofit dedicated to increasing public understanding of the U.S. Constitution, its history, and contemporary relevance. It operates an interactive facility within Independence National Historic Park in Philadelphia and offers national educational outreach programs.
Authority 83/100— ahead of 83% of the August 2026 scored sampleClear
Why this authority score
83 is a percentile: higher than 83% of sites we score.
How it's calculated
Prominence (Tranco rank #22,169)+7
Verified continuity: 29.4 years (RDAP registration)+11
Identity corroboration (capped)+4
Security & email hygiene+5
Calibration adjustment (published map)+15
Model score: 42/99 — what these reason lines add up to.
Published Authority (percentile): 83/100 — this site's rank against the August 2026 scored sample. Public Authority is capped at 99.
What constitutioncenter.org said about itself, 2013
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
2013
The National Constitution Center is an independent, non-partisan, and non-profit organization dedicated to increasing public understanding of, and apprecia...
Site history
Dated record — historical facts always carry their date.
✓ name continuity same company name for 13 years✓ domain continuity 29 years registered✓ live verified Nov 13, 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