khanacademy.org 200
🔒 SSL Valid
HTTP Status A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
200
SSL Expires When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 112d
Domain Expires When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 937d
Hosting The company and location where this website's server is physically located.Read more →
AWS
Security Score based on key HTTP security headers: HSTS, Content-Security-Policy, and X-Frame-Options.Read more →
0/3
IP Address The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
3.167.88.54
Tech Stack Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools. 2
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⚡ Cache
Varnish
☁️ Hosting
AWS
Screenshot 2026-08-20
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Captured: 2026-08-20 03:11:21 · 1.7 KB
DNS Records DNS translates domain names to IP addresses. Records control where the site, email, and services are directed.Read more →
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| A (IPv4) | 3.167.88.133.167.88.273.167.88.543.167.88.86 |
| NS | ns-1664.awsdns-16.co.ukns-798.awsdns-35.netns-125.awsdns-15.comns-1489.awsdns-58.org |
| MX | 5 alt1.aspmx.l.google.com5 alt2.aspmx.l.google.com1 aspmx.l.google.com10 aspmx2.googlemail.com10 aspmx3.googlemail.com |
| TXT | v=spf1 include:_spf.google.com include:sendgrid.net include:aspmx.sailthru.com include:mail.zendesk.com exists:%{i}._spf.mta.salesforce.com include:mg-spf.greenhouse.io -all google-site-verification=7kTMmLFa8kfzTFffAv659zZAhSvDX5lqnB_yuST-xLY botify-site-verification=sGRcFNKzIkHzx1jtsQ7YkiT8hgWB6RiU google-site-verification=JML6gcy7DbE1dA3JB9W4O6EB9uQ8bpOlJTyniVCgd-o google-site-verification=Jiabx8hC-zV0E8-hAj40dHCY_oWNIvfqkNe7VFnGbCs facebook-domain-verification=8kvuco8ljlv8t1aedswjypctrp1pk3 spf2.0/pra include:_spf.google.com include:sendgrid.net include:aspmx.sailthru.com -all openai-domain-verification=dv-E4EGw5ZIgYd9B3mwA3dPV5zY ZOOM_verify_G7FwqtyEKLkoQGhA3ifQq5 google-site-verification=BUF9CkP4-zm7sN2rDSq6NGRiEkrvvh2k3UdQxwSusrU _globalsign-domain-verification=Ca9ol7KyPTrPtyGjL1BqGx_wv6SymozDmCXhHJveUr cursor-domain-verification-dc9ngn=XEN4zLZD2K4p5yMB2JFUNxGIk apple-domain-verification=FBF7Yx9o3htFHZ7m _globalsign-domain-verification=e70UZqvudGByIeilV8oO0gubBZi0P7QLakTxKub-zS globalsign-domain-verification=qV_5Us2mt6FO1Ig5hnG4kYHESYAxuH5-qZ0cRXC-Ig cl_verification=a568671a-6112-4bc5-997d-1f06d8389b2e onetrust-domain-verification=4bc2331ed4d24c81b7be278e6e1fb58b MS=ms10049948 yahoo-verification-key=h5B5VELNOFcyiRDJQWEiNChg+SeClI9Bk9k9daiRPR4= google-site-verification=sHrvDlgokhtbjBWsn8Dhu616EFRRv8GD0C1AU4_1gl4 google-site-verification=SprWzGYoIdXdFrUCSyBhXJtHzFjE8FAQNlTamgKenhU stripe-verification=332820F9A5BCCCACBF2F5D8636496EB723C4062C9B878B8BAB77E99A2522E947 anthropic-domain-verification-4va7p1=Uuz4j8MkpGFjBjYBqvNGNuK46 _globalsign-domain-verification=Prrz12gznJzJiHaajX3CnPfpqK6hhLae0miMSZ_BGa canva-site-verification=JW5MeXNqA7ezvjIRgLOPaQ google-site-verification=y1w1HGdtmQcg92Uy4JtubYkFtDDshCwmDXTFCgjpr-Y hibp-verify=dweb_9nibj6s7woei7t5h43qd3yni |
WHOIS / RDAP Public registration data: who registered the domain, when, and when it expires.Read more →
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| Registrar | GoDaddy.com, LLC |
| Registered | 2006-03-14 |
| Expires | 2029-03-14 (in 937 days) |
| Last Updated | 2026-08-12 |
| Status | client delete prohibitedclient renew prohibitedclient transfer prohibitedclient update prohibited |
SSL Certificate Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
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| Subject (CN) | khanacademy.org |
| Issuer | Amazon |
| Valid From | 2025-11-11 |
| Valid Until | 2026-12-10 (112 days left) |
| SANs (35) | khanacademy.orgsalkhan.comwww.youcanlearnanything.orgwww.conacademy.comes.pixarinabox.orgwww.kahnacademy.compt.pixarinabox.comyoucanlearnanything.orgconacademy.compixarinabox.comwww.salkhan.comcamp.khankids.orgwww.khanacademy.esconacademy.orgwww.pixarinabox.orgkahnacademy.orgwww.khankids.orgsendgrid.khanacademy.orgkasandbox.orgwww.khanacademy.com +15 more |
HTTP Headers Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
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| Status | 200 |
| Server | N/A |
| Content-Type | text/html; charset=utf-8 |
| Final URL | https://www.khanacademy.org/ |
| cache-control | private, no-store |
| via | 1.1 varnish |
Security headers HTTP headers that protect visitors from attacks. HSTS forces HTTPS, CSP controls resource loading, X-Frame-Options prevents clickjacking.Read more →
Hosting Physical infrastructure: where the server is, who operates it, and what network it belongs to.Read more →
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| IP Address | 3.167.88.54 |
| Provider | AWS |
| Organization | Amazon.com, Inc. |
| ASN | AS16509 |
| Country | US |
| City | Dulles Town Center |
Security Score
F (1/7)
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Sitemap & Robots
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| robots.txt | Found Open |
| Sitemap | Not found |
Social & Meta Tags
Missing
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| Title | Client Challenge |
| Language | en |
Mail Security Email authentication records (SPF & DMARC) that prevent spoofing and phishing from this domain.Read more →
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| SPF | ✓ Present v=spf1 include:_spf.google.com include:sendgrid.net include:aspmx.sailthru.com include:mail.zendesk.com exists:%{i}._spf.mta.salesforce.com include:mg-spf.greenhouse.io -all |
| DMARC | ✓ Present v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected] |
| MX Records | 5 → alt1.aspmx.l.google.com 5 → alt2.aspmx.l.google.com 1 → aspmx.l.google.com 10 → aspmx2.googlemail.com 10 → aspmx3.googlemail.com |