geeksforgeeks.org
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Your All-in-One Learning Portal. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.
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Updated: 2026-09-21 09:32
Language: English (default)
Access: Normal
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Website Overview
An established domain and managed infrastructure suggest continuity of operations and may support dependable delivery, although neither guarantees service quality.
Domain and Registration
Registered in 2009, this domain has about 17 years of history. That suggests continuity, although ownership and purpose may have changed. Transfer-protection status is present, helping reduce the risk of unauthorized domain transfers. The domain uses the common .org extension, which is not an independent safety signal.
DNS and Email
The lowest TTL is 23 seconds, supporting rapid record changes at the cost of more frequent lookups. Nameservers are provided by Amazon Route 53, indicating managed DNS hosting. DNS and provider evidence indicate traffic passes through the Amazon CloudFront CDN, which may support caching and traffic distribution. MX records point to the Google Workspace email service. CAA records restrict which certificate authorities are authorized to issue certificates.
TLS and Certificates
The certificate uses an RSA 2048-bit public key, offering broad client compatibility. The server supplied a complete certificate chain. No organization name is present in the certificate; the available fields are consistent with domain validation. The certificate is valid for about 198 days in total, with 92 days remaining. The SAN includes a wildcard covering multiple hostnames at the same subdomain level. Shared private keys can increase the impact of a compromise.
HTTP and Browser Security
X-Powered-By exposes backend information: Next.js. All six checked browser-security headers are present. Their effectiveness still depends on the policy values and application behavior. The x-cache, via response header indicates a CDN or caching proxy in the delivery path. No obvious internal addresses or debug information were found in the headers. The Server header identifies nginx without an exact version.
Technology Stack Analysis
The public page identifies WordPress, Next.js, Google Tag Manager, Google Analytics, Amazon CloudFront, nginx without precise versions, leaving fewer clues for version-specific scanning.
Search and Social Sharing
The meta description has 207 characters and may be shortened in search results. JSON-LD includes Organization data, helping describe the organization as an entity. The title has 47 characters, within a common display range. The observed directives allow indexing and link following. No Generator meta tag is publicly exposed.
Hosting and Email
Amazon Route 53
Hosting
Google Workspace
Location
United States
Pages, Search and Sharing
| Meta description | Your All-in-One Learning Portal. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. |
|---|---|
| Canonical URL | https://www.geeksforgeeks.org/ |
| Language | English (default) |
| Twitter Card | Not detected |
Social Sharing Preview
10 fields
Sharing metadata
| og:url | https://www.geeksforgeeks.org/undefined |
|---|---|
| og:type | object |
| og:image | https://media.geeksforgeeks.org/wp-content/cdn-uploads/gfg_200x200-min.png |
| og:title | GeeksforGeeks |
| og:locale | en_US |
| og:site_name | GeeksforGeeks |
| og:image:type | image/png |
| og:description | Your All-in-One Learning Portal. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. |
| og:image:width | 200 |
| og:image:height | 200 |
robots.txt (opens in a new tab)
12 rulesAll bots 0 allowed · 6 disallowed
All bots
/wp-admin//community//search//wp-content/plugins//connect//content-override.php
ccbot 0 allowed · 1 disallowed
/
anthropic-ai 0 allowed · 1 disallowed
/
applebot 0 allowed · 2 disallowed
/tag//category/
cohere-ai 0 allowed · 1 disallowed
/
bytespider 0 allowed · 1 disallowed
/
No matching rules.
Sitemaps
1
Registration details RDAP / WHOIS
| Registrar | PDR Ltd. d/b/a PublicDomainRegistry.com |
|---|---|
| Registered | 2009-03-19 |
| Expires | 2030-03-19 |
| Domain status | client transfer prohibited |
| Nameservers | ns-1520.awsdns-62.org、ns-1569.awsdns-04.co.uk、ns-245.awsdns-30.com、ns-869.awsdns-44.net |
| DNSSEC | unsigned |
DNS records
| Type | Name | Value | TTL | Priority |
|---|---|---|---|---|
| A | d1t2f3swasxi04.cloudfront.net | 108.138.64.101 | 46 | — |
| A | d1t2f3swasxi04.cloudfront.net | 108.138.64.13 | 46 | — |
| A | d1t2f3swasxi04.cloudfront.net | 108.138.64.52 | 46 | — |
| A | d1t2f3swasxi04.cloudfront.net | 108.138.64.6 | 46 | — |
| AAAA | d1t2f3swasxi04.cloudfront.net | 2600:9000:2508:4000:16:97f7:5900:93a1 | 23 | — |
| AAAA | d1t2f3swasxi04.cloudfront.net | 2600:9000:2508:4c00:16:97f7:5900:93a1 | 23 | — |
| AAAA | d1t2f3swasxi04.cloudfront.net | 2600:9000:2508:5800:16:97f7:5900:93a1 | 23 | — |
| AAAA | d1t2f3swasxi04.cloudfront.net | 2600:9000:2508:7a00:16:97f7:5900:93a1 | 23 | — |
| AAAA | d1t2f3swasxi04.cloudfront.net | 2600:9000:2508:8000:16:97f7:5900:93a1 | 23 | — |
| AAAA | d1t2f3swasxi04.cloudfront.net | 2600:9000:2508:b200:16:97f7:5900:93a1 | 23 | — |
| AAAA | d1t2f3swasxi04.cloudfront.net | 2600:9000:2508:d400:16:97f7:5900:93a1 | 23 | — |
| AAAA | d1t2f3swasxi04.cloudfront.net | 2600:9000:2508:f600:16:97f7:5900:93a1 | 23 | — |
| MX | geeksforgeeks.org | aspmx.l.google.com | 300 | 1 |
| MX | geeksforgeeks.org | alt1.aspmx.l.google.com | 300 | 5 |
| MX | geeksforgeeks.org | alt2.aspmx.l.google.com | 300 | 5 |
| MX | geeksforgeeks.org | alt3.aspmx.l.google.com | 300 | 10 |
| MX | geeksforgeeks.org | alt4.aspmx.l.google.com | 300 | 10 |
| NS | geeksforgeeks.org | ns-1520.awsdns-62.org | 17280 | — |
| NS | geeksforgeeks.org | ns-1569.awsdns-04.co.uk | 17280 | — |
| NS | geeksforgeeks.org | ns-245.awsdns-30.com | 17280 | — |
| NS | geeksforgeeks.org | ns-869.awsdns-44.net | 17280 | — |
| TXT | geeksforgeeks.org | 3gar00r028hle9v71pd8u024e | 300 | — |
| TXT | geeksforgeeks.org | 6kkkujeil47ub8hq3b56k4urg9 | 300 | — |
| TXT | geeksforgeeks.org | 76he63411ql8pn97fc0g4ie3fd | 300 | — |
| TXT | geeksforgeeks.org | fob1m1abcdp777bf2ncvnjm08n | 300 | — |
| TXT | geeksforgeeks.org | google-site-verification=tmF7l3Cu1Fl4fFFwuKUWJFFjHBYIWVSEfCrh97n5Xpc | 300 | — |
| TXT | geeksforgeeks.org | linkedin-site-verification=9b197b2a-3cf7-4f2c-aabf-a8bb10f969ae | 300 | — |
| TXT | geeksforgeeks.org | v=spf1 include:zoho.in include:amazonses.com include:_spf.google.com ip4:167.89.66.115 include:transmail.net.in include:1278314a1.spf2.netcorecloud.net -all | 300 | — |
| CNAME | www.geeksforgeeks.org | d1t2f3swasxi04.cloudfront.net | 1800 | — |
| CAA | geeksforgeeks.org | 0 issue "comodoca.com" | 300 | — |
| CAA | geeksforgeeks.org | 0 issue "godaddy.com" | 300 | — |
| CAA | geeksforgeeks.org | 0 issue "letsencrypt.org" | 300 | — |
| DMARC | _dmarc.geeksforgeeks.org | v=DMARC1; p=quarantine; rua=mailto:[email protected] | 300 | — |
TLS and certificates
| Assessment | Normal configuration |
|---|---|
| Supported protocols | TLSv1.2、TLSv1.3 |
| Negotiated protocol | TLSv1.3 |
| Certificate subject | *.geeksforgeeks.org |
| Issuer | GoDaddy.com, Inc. |
| Valid until | 2026-12-23T05:43 · Remaining when checked: 92 days |
| Verification details | Certificate trust: Passed · Hostname match: Passed |
HTTP response headers
| Header | Value |
|---|---|
| content-type | text/html; charset=utf-8 |
| cache-control | s-maxage=61239, max-age=0 |
| server | nginx |
| strict-transport-security | max-age=31536000; includeSubDomains |
| content-security-policy | default-src 'self' http: https: ws: wss: data: blob: 'unsafe-eval' 'unsafe-inline'; frame-ancestors 'self'; |
| x-content-type-options | nosniff |
| referrer-policy | no-referrer-when-downgrade |
| permissions-policy | interest-cohort=() |
| set-cookie | Redacted |
Identified technologies
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