Overview
Thesaurus.com is a premier online reference resource that has been serving users since 1995. It is owned by Dictionary.com, LLC, a leading provider of language reference products. The site offers a comprehensive database of synonyms, antonyms, and related words, making it an essential tool for writers, students, and language enthusiasts. With over 3 million entries, it is the largest free thesaurus available online. The platform also features word of the day, grammar tips, and writing tools. Its user-friendly interface and authoritative content have made it a go-to resource for improving vocabulary and enhancing writing. The site generates revenue through advertising and premium subscriptions. It is consistently ranked among the top 10,000 websites globally, reflecting its widespread use and trust. Thesaurus.com has evolved to include mobile apps and API services, catering to a diverse audience. Its content is curated by lexicographers and language experts, ensuring accuracy and relevance. The domain's long history and strong brand recognition contribute to its high authority in the reference category.
Company Profile
Dictionary.com, LLC operates Thesaurus.com and Dictionary.com, providing authoritative language reference tools. The company focuses on digital publishing and educational resources.
Online thesaurusSynonym and antonym databaseWord of the dayGrammar tipsWriting toolsMobile appsAPI services
Market PositionMarket leader in online thesaurus services, competing with Merriam-Webster, Collins, and Oxford. It is the most visited thesaurus website globally.
RevenueEstimated $10-50 million annually from advertising and subscriptions.
EmployeesApproximately 100-200 (part of Dictionary.com, LLC)
Typical Use Cases
- ▸A student uses Thesaurus.com to find synonyms for a term paper to avoid repetition.
- ▸A professional writer checks antonyms to refine a character's dialogue.
- ▸An English learner looks up word definitions and examples to expand vocabulary.
- ▸A blogger uses the word of the day feature to inspire content.
- ▸A developer integrates the Thesaurus.com API into a writing assistant app.
Infrastructure
RolePrimary website for Thesaurus.com
IP OwnerCloudflare, Inc.
Global ScaleGlobal reach with CDN via Cloudflare; DNS hosted on AWS Route 53 for reliability and scalability.
DNS Records
A Records
172.64.153.89
104.18.34.167
NS Records
ns-208.awsdns-26.com
ns-1738.awsdns-25.co.uk
ns-1293.awsdns-33.org
Related Domains
Official Website
dictionary.comSame Owner
dictionary.comthesaurus.com
Similar Services
merriam-webster.comcollinsdictionary.comoxfordlearnersdictionaries.compowerthesaurus.org
Thesaurus.com is owned by Dictionary.com, LLC, which also operates Dictionary.com. Both sites share similar infrastructure and content teams.
Identity
OwnerDictionary.com, LLC
Typeprivate
Founded1995
HQOakland, California, USA
Notability
Thesaurus.com is ranked #5985 globally by traffic, indicating a very high profile and established internet presence. It has been operating for 30 years since 1995, making it one of the oldest and most trusted online reference resources. The site is widely recognized as the leading free thesaurus, with millions of monthly visitors. Its strong brand authority, extensive content, and consistent use by educators and professionals solidify its high notability.
Known since1995
Global rank#5985
Risk & Trust
Risk: lowTrust: high
The domain is 30 years old, owned by a reputable company (Dictionary.com, LLC), and has a clean security history. No malware or phishing reports are associated with it. The site uses HTTPS and is served via Cloudflare, indicating robust security measures. Its high traffic rank and long-standing reputation further confirm its trustworthiness.
WHOIS
RegisteredMay 30, 1995
Age30 years
Registrar101domain GRS Limited
ExpiresMay 29, 2026
AI Confidence
ai_knowledgewhoisdns
This analysis is based on publicly available data and AI knowledge. Direct access to the site was not available, so some details may be inferred.