sudoku.com
In its own wordsPlay Free Sudoku online - solve web sudoku puzzlesPlay free Sudoku online from Easy to Expert level on Sudoku.com. Select a difficulty level of a web sudoku puzzle to challenge yourself and enjoy the game!
sudoku
sudoku.com is ranked in the top 10,000 sites and was registered in 2000. It uses Cloudflare, Cloudflare DNS and Google Workspace; we found no traces of an AI site builder.
Popularity
Website Traffic CheckerAmong the top 10K sites.
A popularity band, not a visit count.
Top 1KTop 10KTop 100KTop 1MOutside top 1M
Tranco: #7,528 · Chrome UX Report: Top 5,000 · Majestic Million: #52,866
Each list, with its date
| Source | Says | As of |
|---|---|---|
| TrancoA research ranking that combines several traffic and link sources, published daily. | #7,528 | list of 7 Oct 2026 |
| Chrome UX ReportRank buckets from Google’s real Chrome traffic, published monthly. | Top 5,000 | Aug 2026 |
| Majestic MillionRanks sites by how many separate networks link to them (links, not visits), published daily. CC BY 3.0 | #52,866 | list of 8 Oct 2026 |
Technology
Tech Stack CheckerNo framework or CMS shows in the page; it uses CDN, DNS, Email, Analytics and more.
Everything else it uses (8)
Around it: CDN, DNS, Email, Analytics and more.
CloudflareCDNShow evidenceHide evidence
Evidence · response headerPopular sites using Cloudflare Is this wrong? Report itcf-ray: a4cc84052b3d7687-SEA
Cloudflare DNSDNSShow evidenceHide evidence
Evidence · DNS recordPopular sites using Cloudflare DNS Is this wrong? Report itsudoku.com NS olga.ns.cloudflare.com.
Google WorkspaceEmailShow evidenceHide evidence
Evidence · DNS recordPopular sites using Google Workspace Is this wrong? Report itsudoku.com MX 1 aspmx.l.google.com.
Google AnalyticsAnalyticsShow evidenceHide evidence
Evidence · page source, line 32Popular sites using Google Analytics Is this wrong? Report it<script src="https://www.googletagmanager.com/gtag/js?id=G-LKCCSV4WGG">
Meta PixelAdvertisingShow evidenceHide evidence
Evidence · page source, line 1137Popular sites using Meta Pixel Is this wrong? Report it…t', 'https://connect.facebook.net/en_US/fbevents.js'); fbq('dataProcessingOptions', ['L…Google Search ConsoleSEOShow evidenceHide evidence
Evidence · page source, line 2Popular sites using Google Search Console Is this wrong? Report it<meta name="google-site-verification" content="V5Kg0iLVBA5VdRdkMAV_kdAzyLxwizsIZdVvAnHkTyg">
TrustArcCookie consentShow evidenceHide evidence
Evidence · page source, line 48Popular sites using TrustArc Is this wrong? Report it<script src="https://consent.trustarc.com/iabasset/iabTcfStubV22.js?domain=easybr…
1PasswordBusiness toolsShow evidenceHide evidence
Evidence · DNS recordPopular sites using 1Password Is this wrong? Report itsudoku.com TXT 1password-site-verification=K5EFUBEURNDG5ORTAM7BF5ZYNM
Business tools can stay listed after a site stops using them.
Trust signals
Website Trust Checker3 of 7 trust signals found on the home page.
Signals, not a judgement: missing details are common on small, honest sites.
- Domain registered22 May 2000, 26 years agoNoted
- HTTPSLoads over HTTPS with a valid certificateFound
- Contact detailsNo email or phone on the home pageNot found
- Privacy policyLinked from the home pageFound
- TermsLinked from the home pageFound
- Security filterNot blocked by Cloudflare’s security filter and Quad9’s security filterNoted
Every signal we looked at
On the site
- Contact pageLinked from the home page, and the page opensFound
- About pageNo link found on the home pageNot found
- Privacy policyLinked from the home pageFound
- TermsLinked from the home pageFound
- Refund or returns policyNo link found on the home pageNot found
- Contact detailsNo email or phone on the home pageNot found
- Company detailsNo company name or address foundNot found
- Payment providersNone on the home pageNoted
- Trackers2 analytics and advertising tools: Google Analytics, Meta PixelNoted
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 registered22 May 2000, 26 years agoNoteddomain registry
- HTTPSLoads over HTTPS with a valid certificateFound
- Protective settings3 of 6 in placePartly
- Email protectionProtected against forged emailFoundDNS 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 SummaryIt calls itself “Play Free Sudoku online - solve web sudoku puzzles”.
In its own wordsPlay Free Sudoku online - solve web sudoku puzzlesPlay free Sudoku online from Easy to Expert level on Sudoku.com. Select a difficulty level of a web sudoku puzzle to challenge yourself and enjoy the game!
The page doesn’t show enough to say what kind of site it is (a shop, a blog, an app…).
Who is behind it
- copyright lineEasybrain
Show evidenceHide evidence
Exhibit 1 · page source, line 975
Is this wrong? Report it© 2018-2026 Easybrain. All Rights Reserved.
Each name is quoted from its source. A brand and the company that owns it often go by different names.
More about it: Wikidata, profiles, AI use, page facts
AI use
- AI training: doesn’t ask AI training crawlers to stay away.
- AI assistants: may read it for the people who ask them.
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 DetectorNo 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 Score89 of 100: strong trust signals.
How established and checkable it is; AI traces carry no weight.
TransparencyContact, policies and about page22 / 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 page22 / 30contact page linked · 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 26 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 HistoryRegistered in 2000; first archived in 2001.
- Domain registeredRDAP
- First captured by the web archiveInternet Archive
- This scanCheckAnySite
In the web archive: captured in 26 of 26 years · see the first capture
- 2001: captured
- 2002: captured
- 2003: captured
- 2004: captured
- 2005: captured
- 2006: captured
- 2007: captured
- 2008: captured
- 2009: captured
- 2010: captured
- 2011: captured
- 2012: captured
- 2013: captured
- 2014: captured
- 2015: captured
- 2016: captured
- 2017: captured
- 2018: captured
- 2019: captured
- 2020: captured
- 2021: captured
- 2022: captured
- 2023: captured
- 2024: captured
- 2025: captured
- 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 19 Oct 2026, with version 0.5.0 of our checks and version 1.1 of the score.
Questions about sudoku.com
What is sudoku.com?
sudoku.com describes itself: “Play free Sudoku online from Easy to Expert level on Sudoku.com. Select a difficulty level of a web sudoku puzzle to challenge yourself and enjoy the game!” See the evidence
How old is sudoku.com?
Its domain was registered on 22 May 2000, 26 years ago. See the evidence
What is sudoku.com built with?
It uses Cloudflare, Cloudflare DNS and Google Workspace; we found 8 technologies in all. See the evidence
How popular is sudoku.com?
It is among the top 10,000 sites, by Tranco, Chrome UX Report and Majestic Million. See the evidence
Was sudoku.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
Who is behind sudoku.com?
Its copyright line names Easybrain. See the evidence
More sites near it in popularity
Automated findings from the site’s public home page and public records, as of 19 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.
Is this your site? Ask for a correction.