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thesaurus.com

Scanned Fresh926 checks

81OF 100
How it adds up →
In its own wordsSynonyms and Antonyms of Words | Thesaurus.comThesaurus.com is the world's largest and most trusted online thesaurus for 25+ years. Join millions of people and grow your mastery of the English language.
PopularityTop 10KBuilt withCloudflare, Cloudflare Bot Management, reCAPTCHAAround the site; no CMS or framework visibleTrust signals2 of 7 foundDomain registered 31 years agoBuilt with AI? None foundNo traces found

thesaurus.com is ranked in the top 10,000 sites and was registered in 1995. It uses Cloudflare, Cloudflare Bot Management and reCAPTCHA; we found no traces of an AI site builder.

Popularity

Website Traffic Checker

Among the top 10K sites.

A popularity band, not a visit count.

Tranco: #6,970 · Chrome UX Report: Top 10,000 · Majestic Million: #3,469

Each list, with its date
SourceSaysAs of
TrancoA research ranking that combines several traffic and link sources, published daily.#6,970list of 7 Oct 2026
Chrome UX ReportRank buckets from Google’s real Chrome traffic, published monthly.Top 10,000Aug 2026
Majestic MillionRanks sites by how many separate networks link to them (links, not visits), published daily. CC BY 3.0#3,469list of 8 Oct 2026

Technology

Tech Stack Checker

No framework or CMS shows in the page; it uses CDN, Security, DNS, Email and more.

Everything else it uses (15)

Around it: CDN, Security, DNS, Email and more.

Business tools can stay listed after a site stops using them.

Trust signals

Website Trust Checker

2 of 7 trust signals found on the home page.

Signals, not a judgement: missing details are common on small, honest sites.

  • Domain registered30 May 1995, 31 years agoNoted
  • HTTPSLoads over HTTPS with a valid certificateFound
  • Contact detailsEmail on the home pagePartly
    Show evidenceHide evidence
    Exhibit 1 · page source, line 1667, as Cloudflare’s email protection decodes itMasked for privacy. An email address or phone number can belong to a person, and data protection law, such as the EU’s GDPR, asks us to keep only what we need: that the page lists one, and where.
    <a href="mailto:s•••@dictionary.com">Contact us</a>
    Is this wrong? Report it
  • Privacy policyLinked from the home page, and the page opensFound
  • TermsLinked from the home page, and the page opensFound
  • Security filterNot blocked by Cloudflare’s security filter and Quad9’s security filterNoted
Every signal we looked at

On the site

  • Contact pageNo link found on the home pageNot found
  • About pageNo link found on the home pageNot found
  • Privacy policyLinked from the home page, and the page opensFound
  • TermsLinked from the home page, and the page opensFound
  • Refund or returns policyNo link found on the home pageNot found
  • Contact detailsEmail on the home pagePartly
    Show evidenceHide evidence
    Exhibit 1 · page source, line 1667, as Cloudflare’s email protection decodes itMasked for privacy. An email address or phone number can belong to a person, and data protection law, such as the EU’s GDPR, asks us to keep only what we need: that the page lists one, and where.
    <a href="mailto:s•••@dictionary.com">Contact us</a>
    Is this wrong? Report it
  • Company detailsNo company name or address foundNot found
  • Payment providersNone on the home pageNoted
  • Trackers4 analytics and advertising tools: Quantcast Measure, Google Ad Manager, Amazon Ads, BlockthroughNoted

Behind the site

  • Security filterNot blocked by Cloudflare’s security filter and Quad9’s security filterNotedCloudflare’s security filter and Quad9’s security filter
  • Domain registered30 May 1995, 31 years agoNoteddomain registry
  • HTTPSLoads over HTTPS with a valid certificateFound
  • Protective settings4 of 6 in placeFound
  • Email protectionPartly protected against forged emailPartlyDNS records

A second opinion on its security setup: Mozilla’s HTTP Observatory grades the site when you open it. Ten checks before you buy · A signal looks wrong? Report it

What it is

Website Summary

It calls itself “Synonyms and Antonyms of Words | Thesaurus.com”.

In its own wordsSynonyms and Antonyms of Words | Thesaurus.comThesaurus.com is the world's largest and most trusted online thesaurus for 25+ years. Join millions of people and grow your mastery of the English language.

The page doesn’t show enough to say what kind of site it is (a shop, a blog, an app…).

More about it: Wikidata, profiles, AI use, page facts

Find them on

The profiles its home page links. We haven’t checked who runs them.

AI use

  • AI training: asks GPTBot, CCBot and Applebot-Extended to stay away.
  • AI assistants: may read it for the people who ask them.
Show evidence (3)Hide evidence
Exhibit 1 · robots.txt, line 3
User-agent: GPTBot · Disallow: /
Exhibit 2 · robots.txt, line 6
User-agent: CCBot · Disallow: /
Exhibit 3 · robots.txt, line 15
User-agent: Applebot-Extended · Disallow: /
Is this wrong? Report it

What its robots.txt and robots tags ask of AI crawlers. Each crawler chooses whether to follow it.

Site name
Not given
Language
English (en)
What it tells search engines
None

Read from what the page says about itself; we haven’t checked whether it’s true.

Built with AI?

AI Website Detector

No AI builder traces found.

Coding tools such as Cursor leave no traces, so this doesn’t mean a person made it.

AI traces: None found

How we know

AI site builders leave traces in the sites they make. We look for the traces of 53 of them and show every match with the line it came from, so you can check it yourself.

We test this on 2,312 sites whose makers we know, and publish what we get wrong.

How we test it · Every builder we know · How to tell if a site was built with AI

Score breakdown

Site Score

81 of 100: strong trust signals.

How established and checkable it is; AI traces carry no weight.

81OF 100
TransparencyContact, policies and about page14 / 30
Track recordHow long the domain has existed25 / 25
PopularityIts place in public rankings20 / 20
Security and setupHTTPS and standard protections15 / 15
ConsistencyName, description and what it tells search engines7 / 10
Why each part scored what it did
TransparencyContact, policies and about page14 / 30no contact page link · email and phone not both given · privacy policy linked · terms linked · no payments seen, so no refund policy needed · no about page link
Track recordHow long the domain has existed25 / 25domain registered 31 years ago
PopularityIts place in public rankings20 / 20Top 10K in a popularity list
Security and setupHTTPS and standard protections15 / 15loads over HTTPS · sends visitors to HTTPS · always uses HTTPS · protective settings
ConsistencyName, description and what it tells search engines7 / 10site name matches the domain · describes itself · doesn’t tell search engines what it is

A high score isn’t a promise that a business is honest. How the score works.

Domain history

Domain History

Registered in 1995; first archived in 1997.

  1. Domain registeredRDAP
  2. First captured by the web archiveInternet Archive
  3. This scanCheckAnySite

In the web archive: captured in 30 of 30 years · see the first capture

  1. 1997: captured
  2. 1998: captured
  3. 1999: captured
  4. 2000: captured
  5. 2001: captured
  6. 2002: captured
  7. 2003: captured
  8. 2004: captured
  9. 2005: captured
  10. 2006: captured
  11. 2007: captured
  12. 2008: captured
  13. 2009: captured
  14. 2010: captured
  15. 2011: captured
  16. 2012: captured
  17. 2013: captured
  18. 2014: captured
  19. 2015: captured
  20. 2016: captured
  21. 2017: captured
  22. 2018: captured
  23. 2019: captured
  24. 2020: captured
  25. 2021: captured
  26. 2022: captured
  27. 2023: captured
  28. 2024: captured
  29. 2025: captured
  30. 2026: captured
Changes, earlier scans and alerts
Since our previous scan
This is our first scan of the site.

How we scanned it

Only from what anyone can see: the site’s public pages and public records.

  • Politely. Our scanner, CheckAnySiteBot, says who it is and follows the site’s robots.txt.
  • With sources. Every fact above says where it came from and when.
  • Without guessing. When we couldn’t check something, we say so.
This scan, in numbers

926 checks on 18 Oct 2026, with version 0.5.0 of our checks and version 1.1 of the score.

How we work · What each version changed · About our scanner

Quick look

Built with AI?

None foundWe found no AI builder traces.

“None found” never means “made by a person”: coding assistants leave no traces.

All the evidence →

Related

Quick look

How popular is it?

Top 10KBy the best of 3 public lists.

  • Tranco#6,970list of 7 Oct 2026
  • Chrome UX ReportTop 10,000Aug 2026
  • Majestic Million#3,469list of 8 Oct 2026

A popularity band, never a visit count.

The popularity section →

Related

Quick look

What is it built with?

CDN
Cloudflare
Security
Cloudflare Bot Management, reCAPTCHA
DNS
Cloudflare DNS
Email
Microsoft 365
Analytics
Quantcast Measure
Tag manager
Google Tag Manager
Advertising
Google Ad Manager, Amazon Ads, Blockthrough
SEO
Google Search Console
Fonts
Google Fonts
Business tools
Meta Business, Apple Business, Yahoo
Each with its evidence →

Related

Quick look

Which trust signals does it show?

On the site

  • Contact pageNot found
  • About pageNot found
  • Privacy policyFound
  • TermsFound
  • Refund or returns policyNot found
  • Contact detailsPartly
  • Company detailsNot found
  • Payment providersNoted
  • TrackersNoted

Behind the site

  • Security filterNoted
  • Domain registeredNoted
  • HTTPSFound
  • Security headersFound
  • Software versionsNoted
  • NetworkNoted
  • Email setupPartly
  • First certificateCouldn’t check
  • DNSSECNot found
  • Certificate authoritiesNot found
  • Security contactNot found

Signals, not a judgement: missing details are common on small, honest sites.

Every signal with its source →

Related

How has it changed? →
Quick look

How does it add up?

81OF 100

Strong trust signals. An open formula (v1.1): every point comes from a finding above. AI traces carry no weight.

TransparencyContact, policies and about page14 / 30
Track recordHow long the domain has existed25 / 25
PopularityIts place in public rankings20 / 20
Security and setupHTTPS and standard protections15 / 15
ConsistencyName, description and what it tells search engines7 / 10
Why each part scored what it did →

Related

Questions about thesaurus.com

What is thesaurus.com?

thesaurus.com describes itself: “Thesaurus.com is the world's largest and most trusted online thesaurus for 25+ years. Join millions of people and grow your mastery of the English language.” See the evidence

How old is thesaurus.com?

Its domain was registered on 30 May 1995, 31 years ago. See the evidence

What is thesaurus.com built with?

It uses Cloudflare, Cloudflare Bot Management and reCAPTCHA; we found 15 technologies in all. See the evidence

How popular is thesaurus.com?

It is among the top 10,000 sites, by Tranco, Chrome UX Report and Majestic Million. See the evidence

Was thesaurus.com made with AI?

We found no traces of an AI site builder. That doesn’t prove a person built it: AI coding assistants leave no traces. See the evidence

More sites near it in popularity

Automated findings from the site’s public home page and public records, as of 18 Oct 2026. They describe what we found, not the people or business behind the site, and they may be incomplete or out of date. This is information, not advice. Terms · Report an error

What this scan can’t tell you
  • Whether the business is real, honest or delivers what it sells.
  • Whether a site was made with AI when no traces were left: coding assistants and hand edits leave none.
  • How many people visit: we show popularity bands from public lists, not visits.
  • Anything beyond the home page as it was at the time of the scan.

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The result describes what we found on 18 Oct 2026, with evidence.

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One scan answers everything: AI traces, popularity, technology, trust signals, how the site describes itself, a score and its history. A quick check only decides which answer comes first. We read public pages as CheckAnySiteBot and follow robots.txt.