Loading...
Loading...
{
"latency": 418,
"ipAddresses": [
"107.180.50.227"
],
"dns": {
"NS": [
"ns55.domaincontrol.com.",
"ns56.domaincontrol.com."
],
"A": [
"107.180.50.227"
]
}
}
[
{
"url": "https://cut-the-knot.org",
"technologies": [
{
"slug": "bootstrap",
"name": "Bootstrap",
"icon": "Bootstrap.svg",
"cpe": "cpe:2.3:a:getbootstrap:bootstrap:*:*:*:*:*:*:*:*",
"versions": [],
"categories": [
{
"id": 66,
"slug": "ui-frameworks",
"name": "UI frameworks"
}
],
"confirmedAt": 1724629937
},
{
"slug": "apache-http-server",
"name": "Apache HTTP Server",
"icon": "Apache.svg",
"cpe": "cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*",
"versions": [],
"categories": [
{
"id": 22,
"slug": "web-servers",
"name": "Web servers"
}
],
"confirmedAt": 1724629937
},
{
"slug": "jquery-cdn",
"name": "jQuery CDN",
"icon": "jQuery.svg",
"versions": [],
"categories": [
{
"id": 31,
"slug": "cdn",
"name": "CDN"
}
],
"confirmedAt": 1724629937
},
{
"slug": "jquery",
"name": "jQuery",
"icon": "jQuery.svg",
"cpe": "cpe:2.3:a:jquery:jquery:*:*:*:*:*:*:*:*",
"versions": [
"2.1.0"
],
"categories": [
{
"id": 59,
"slug": "javascript-libraries",
"name": "JavaScript libraries"
}
],
"confirmedAt": 1724629937
}
]
}
]
User-agent: Mediapartners-Google*
Disallow:
User-agent: Googlebot
Disallow:
User-agent: googlebot-image
Disallow:
User-agent: googlebot-mobile
Disallow:
User-agent: MSNBot
Disallow:
User-agent: Slurp
Disallow:
User-agent: ia_archiver
Disallow:
User-agent: yahoo-mmcrawler
Disallow:
User-agent: psbot
Disallow:
User-agent: Xenu
Disallow:
User-agent: Bingbot
Disallow:
User-agent: Adidxbot
Disallow:
User-agent: BingPreview
Disallow:
User-agent: *
Disallow: /cgi-bin/
Disallow: /everyones.shtml
Disallow: /cgi-bin/
Disallow: /try/
Disallow: /Temp/
Disallow: /temp/
Disallow: /SpecialBin/
Disallow: /pics/
Disallow: /AppletSales
Disallow: /classes
Disallow: /PHP
Disallow: /SoftwareStore
Disallow: /ftporg
Disallow: /install-tl
Disallow: /js
Disallow: /MathServer
Disallow: /moodle
Disallow: /MathJax
Crawl-delay: 120
{
"error": false,
"result": {
"success": true,
"author": "Alexander Bogomolny",
"ogTitle": "Interactive Mathematics Miscellany <br>and Puzzles",
"ogImage": [
{
"url": "alex.jpg",
"type": "jpg",
"width": 135,
"height": 178
},
{
"url": "CTKBook2020thumb.png",
"type": "png",
"width": 211,
"height": 300
}
],
"favicon": "./gifs/favicon.jpg",
"charset": "ISO-8859-1",
"requestUrl": "https://cut-the-knot.org"
},
"response": {}
}
{
"status": 200,
"statusText": "",
"headers": {
"accept-ranges": "bytes",
"connection": "Upgrade, Keep-Alive",
"content-encoding": "br",
"content-length": "9283",
"content-type": "text/html",
"date": "Fri, 31 Jan 2025 22:55:00 GMT",
"keep-alive": "timeout=5",
"server": "Apache",
"upgrade": "h2,h2c",
"vary": "Accept-Encoding"
}
}
{
"data": {
"total": 0,
"personal_emails": 0,
"generic_emails": 0,
"department": {
"executive": 0,
"it": 0,
"finance": 0,
"management": 0,
"sales": 0,
"legal": 0,
"support": 0,
"hr": 0,
"marketing": 0,
"communication": 0,
"education": 0,
"design": 0,
"health": 0,
"operations": 0
},
"seniority": {
"junior": 0,
"senior": 0,
"executive": 0
}
},
"meta": {
"params": {
"domain": "cut-the-knot.org",
"company": null,
"type": null
}
}
}
{
"Apple Whitelist": "This website domain is on the Apple TLD whitelist which may potentially mean these domains will appear in autocomplete when looking up URLs on Apple products.",
"Alexa Verify": "Allows users to customize a site's alexa profile by verifying the site.",
"Facebook Sharer": "Share this page on Facebook using a deprecated sharing syntax.",
"Imgur": "The page contains content from image sharing website imgur.",
"CrUX Dataset": "CrUX is a data collection system that gathers information about how real users interact with websites. This website is included in the user experiences data gathered from Google Chrome and thus considered sufficiently popular on the Internet.",
"CrUX Top 1m": "Relative measure of site popularity within the CrUX dataset, measured by the total number of navigations on the origin. This site is in the top 1 million.",
"CrUX Top 5m": "Relative measure of site popularity within the CrUX dataset, measured by the total number of navigations on the origin. This site is in the top 5 million.",
"Network Advertising Initiative": "NAI is a network advertising initiative that provides services, tools and resources to help businesses manage their online advertising",
"Cloudflare Radar": "The website appears on the Cloudflare Radar Top 1m sites list",
"jQuery CDN": "The jQuery Amazon S3 Content Delivery Network",
"jQuery": "JQuery is a fast, concise, JavaScript Library that simplifies how you traverse HTML documents, handle events, perform animations, and add Ajax interactions to your web pages. jQuery is designed to change the way that you write JavaScript.",
"jQuery 1.9.1": "jQuery version 1.9.1",
"jQuery 2.1.0": "jQuery version 2.1.0",
"Infolinks": "Infolinks presents the next generation of In-Text Advertising, leading the industry with the most relevant in-text advertising links and the highest revenue share - guaranteed.",
"Events Page": "The website contains a link to an \"Events\" or \"Calendar\" page.",
"Facebook": "The website mentions facebook.com in some form.",
"Twitter": "The website mentions twitter.com in some form.",
"API Developer": "This website contains a link to an API or Developer page.",
"SSL by Default": "The website redirects traffic to an HTTPS/SSL version by default.",
"GoDaddy SSL": "Certificate provided by GoDaddy.",
"GoDaddy DNS": "DNS services provided by GoDaddy.",
"GoDaddy": "Global hosting and domain registration provider led by Bob Parsons.",
"U.S. Server Location": "The web server is located in the United States.",
"Apache": "Apache has been the most popular web server on the Internet since April 1996.",
"Content Delivery Network": "This page contains links that give the impression that some of the site contents are stored on a content delivery network.",
"Google Webmaster": "Webmaster tools provide you with a free and easy way to make your site more Google-friendly.",
"MSN/Bing Webmaster": "Site registered at MSN/Bing Webmaster.",
"Yahoo Site Explorer": "[url] has been registered at Yahoo Site Explorer.",
"Copyright Year 2018": "Webpage has a copyright year of 2018 with no detectable mention of the current year."
}
{
"whois.pir.org": {
"Domain Status": [
"clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited",
"clientRenewProhibited https://icann.org/epp#clientRenewProhibited",
"clientTransferProhibited https://icann.org/epp#clientTransferProhibited",
"clientUpdateProhibited https://icann.org/epp#clientUpdateProhibited"
],
"Name Server": [
"ns55.domaincontrol.com",
"ns56.domaincontrol.com"
],
"Domain Name": "cut-the-knot.org",
"Registry Domain ID": "5fa5db41ae4844d0bcc0cd0c9e379083-LROR",
"Registrar WHOIS Server": "http://whois.godaddy.com",
"Registrar URL": "http://www.whois.godaddy.com",
"Updated Date": "2024-07-27T12:41:51Z",
"Created Date": "2001-11-06T20:05:04Z",
"Expiry Date": "2025-11-06T20:05:04Z",
"Registrar": "GoDaddy.com, LLC",
"Registrar IANA ID": "146",
"Registrar Abuse Contact Email": "[email protected]",
"Registrar Abuse Contact Phone": "+1.4806242505",
"Registry Registrant ID": "",
"Registrant Name": "",
"Registrant Organization": "Domains By Proxy, LLC",
"Registrant Street": "",
"Registrant City": "",
"Registrant State/Province": "Arizona",
"Registrant Postal Code": "",
"Registrant Country": "US",
"Registrant Phone": "",
"Registrant Phone Ext": "",
"Registrant Fax": "",
"Registrant Fax Ext": "",
"Registrant Email": "Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.",
"Registry Admin ID": "",
"Admin Name": "",
"Admin Organization": "",
"Admin Street": "",
"Admin City": "",
"Admin State/Province": "",
"Admin Postal Code": "",
"Admin Country": "",
"Admin Phone": "",
"Admin Phone Ext": "",
"Admin Fax": "",
"Admin Fax Ext": "",
"Admin Email": "Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.",
"Registry Tech ID": "",
"Tech Name": "",
"Tech Organization": "",
"Tech Street": "",
"Tech City": "",
"Tech State/Province": "",
"Tech Postal Code": "",
"Tech Country": "",
"Tech Phone": "",
"Tech Phone Ext": "",
"Tech Fax": "",
"Tech Fax Ext": "",
"Tech Email": "Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.",
"DNSSEC": "unsigned",
"URL of the ICANN Whois Inaccuracy Complaint Form": "https://www.icann.org/wicf/",
">>> Last update of WHOIS database": "2025-01-31T22:55:00Z <<<",
"text": [
"For more information on Whois status codes, please visit https://icann.org/epp",
"",
"Terms of Use: Access to Public Interest Registry WHOIS information is provided to assist persons in determining the contents of a domain name registration record in the Public Interest Registry registry database. The data in this record is provided by Public Interest Registry for informational purposes only, and Public Interest Registry does not guarantee its accuracy. This service is intended only for query-based access. You agree that you will use this data only for lawful purposes and that, under no circumstances will you use this data to (a) allow, enable, or otherwise support the transmission by e-mail, telephone, or facsimile of mass unsolicited, commercial advertising or solicitations to entities other than the data recipient's own existing customers; or (b) enable high volume, automated, electronic processes that send queries or data to the systems of Registry Operator, a Registrar, or Identity Digital except as reasonably necessary to register domain names or modify existing registrations. All rights reserved. Public Interest Registry reserves the right to modify these terms at any time. By submitting this query, you agree to abide by this policy. The Registrar of Record identified in this output may have an RDDS service that can be queried for additional information on how to contact the Registrant, Admin, or Tech contact of the queried domain name."
]
},
"whois.godaddy.com": {
"Domain Status": [],
"Name Server": [],
"Rate limit exceeded. Try again after": "10s",
"text": [
""
]
}
}