Is khanacademy.org safe?

Very Likely Safe

No major red flags found. This looks like a legitimate, established website.

Popular site · #2,385 worldwideChecked Nov 13, 2026

Trust score

Why: Main reasons: domain registered 21+ years ago; not flagged by Google Safe Browsing; popular website — ranked #2,385 worldwide. Minor issues: missing HSTS; missing Content Security Policy.

Identity & Age100/100

Impersonation Risk100/100

Red Flags100/100

Transparency70/100

Security77/100

Email100/100

Positive highlights

Domain registered 21+ years agoLong-established domains are far less likely to be disposable scams.
Not flagged by Google Safe BrowsingNo malware, phishing, or unwanted-software match in Google's live threat database.
HTTPS is enforcedAll redirects stayed on HTTPS. Traffic is encrypted end-to-end.
Valid SSL / TLS certificate activeIssued by C=US, O=Amazon, CN=Amazon RSA 2048 M01, valid for 165 remaining days.
Popular website — ranked #2,385 worldwideListed in the Tranco top 1 million websites. Scam sites are almost never this popular.
Site responded with 200Final URL: https://www.khanacademy.org/. Response time 180ms.
No impersonation patterns detectedDomain doesn't look like a typosquat, doesn't embed a well-known brand, and uses ASCII characters.
Not listed on URLhaus malware blocklist
Fast response (180ms)
Not present in PhishStats phishing feed

Negative highlights

Missing HSTSTells browsers to only use HTTPS for this domain.
Missing Content Security PolicyRestricts which scripts and resources the page can load.

Note: Registered via GoDaddy.com, LLC.

Note: 1 technologies detected. Cloudflare

Note: Policy pages could not be checked. The site showed our scanner a bot-check or short page, so privacy, terms and contact pages were not verified. This is common for large sites and is not counted against them.

Key facts about khanacademy.org

Website: khanacademy.org
Popularity: #2,385 worldwide (Tranco top 1M)
Domain created: Mar 14, 2006 (20.7 years old)
Domain expires: Mar 14, 2029
Registrar: GoDaddy.com, LLC
Owner details: Public in WHOIS
IP address: 18.155.75.124
Hosting / CDN: Cloudflare
SSL certificate: Amazon · valid until Apr 27, 2027
Email security: SPF ✓ · DMARC ✓ (reject)
Threat blocklists: Not listed (clean)
Technology: Cloudflare

Summary

94/100 — trusted. Long-established domain (20.7 years old), clean threat reputation, no impersonation patterns.

No malware/phishing on feedsGood reputationHTTPS enabled

Full technical report

Domain Information

Registration timeline, age calculation, registrar details, and ICANN status.

Verified

Registrar Name: GoDaddy.com, LLC
Creation Date: March 14, 2006 (20.7 years ago)
Last Updated: August 12, 2026
Registry Expiry Date: March 14, 2029
WHOIS Privacy Protection: Publicly Visible
Domain Status Codes: client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited

ICANN Status Badges

client delete prohibitedclient renew prohibitedclient transfer prohibitedclient update prohibited

Open in standalone WHOIS / RDAP Lookup tool →

Domain registered 21+ years ago

Long-established domains are far less likely to be disposable scams.

+15

Registered via GoDaddy.com, LLC

Owner information disclosed

The domain publishes registrant contact info — a small positive transparency signal.

HTTP Headers & Security

Full HTTP response headers, HSTS, Content Security Policy (CSP), and security baselines.

Warning

Security Header Baseline

Strict-Transport-SecurityMissing

Content-Security-PolicyMissing

X-Frame-OptionsMissing

X-Content-Type-OptionsMissing

Referrer-PolicyMissing

Permissions-PolicyMissing

Recommended Missing Headers

missing: HSTSmissing: Content Security Policymissing: X-Frame-Optionsmissing: X-Content-Type-Optionsmissing: Referrer Policymissing: Permissions Policy

All Response Headers (12)

accept-ranges: bytes
cache-control: private, no-store
cf-cache-status: DYNAMIC
cf-ray: a59ee43f7dfa3564-CMH
connection: close
content-length: 3038
content-type: text/html; charset=utf-8
date: Fri, 13 Nov 2026 15:43:21 GMT
server: cloudflare
set-cookie: _fs_ch_st_FSBmUei20MqUiJb9=AYWapQxU4mRFR8niIDNi2-OxjlapruzUc3HBUChmNWZjCGR3yUHyNZ4YoCXXyldkDIrlDcaREBbeMcrh9J0tm2UmIhDgaRwkIrStXtVQOn7cJjPeSRvO9XIuoGfPvruA-kkrQ5IOBP4kbeWln-LZkWEuNoGyqexKEXNoazpMnxlG9wDZewzW2pK7DnO1cOLbg0CEi7Mo6LUnxsDDD3SWh4t3xbwu7pEaILdBzX9IyHz0c-CyDbXcldXs_Gqqj7YnmWs6myDuGJYGjVaH1Nk6zTo9PyWocOmODet-s5n3xOKbz0Mx9XnNgVzSAcroCkSBTFqLi2mBrQp-UOZ4qlpSHrJ6HIp8docGadPyvqOHUh7mqZvejyvA7BQbqnaydO9Pz_JT; Max-Age=10; HttpOnly; Path=/
via: 1.1 varnish
x-varnish: 1795762527

Inspect all headers in HTTP Header Checker tool →

Missing HSTS

Tells browsers to only use HTTPS for this domain.

-4

Missing Content Security Policy

Restricts which scripts and resources the page can load.

-4

Missing X-Frame-Options

Prevents clickjacking by disallowing framing.

-3

Missing X-Content-Type-Options

Blocks MIME-sniffing browser attacks.

-2

Missing Referrer Policy

Controls what referrer information is sent with requests.

-2

Missing Permissions Policy

Restricts access to powerful browser features (camera, mic, etc.).

-2

DNS Records

Encrypted DoH resolution: A, AAAA, MX mail servers, authoritative NS, and TXT verification.

Resolved

IPv4 Addresses (A): 18.155.75.124, 18.155.75.40, 18.155.75.65, 18.155.75.39
IPv6 Addresses (AAAA): None
Mail Servers (MX): aspmx.l.google.com (Priority: 1), alt1.aspmx.l.google.com (Priority: 5), alt2.aspmx.l.google.com (Priority: 5), aspmx2.googlemail.com (Priority: 10), aspmx3.googlemail.com (Priority: 10)
Authoritative Nameservers (NS): ns-125.awsdns-15.com, ns-1489.awsdns-58.org, ns-1664.awsdns-16.co.uk, ns-798.awsdns-35.net
TXT Records Found: 27 TXT verification records

A Records (IPv4)

18.155.75.12418.155.75.4018.155.75.6518.155.75.39

TXT Verification Records

MS=ms10049948

ZOOM_verify_G7FwqtyEKLkoQGhA3ifQq5

_globalsign-domain-verification=Ca9ol7KyPTrPtyGjL1BqGx_wv6SymozDmCXhHJveUr

_globalsign-domain-verification=Prrz12gznJzJiHaajX3CnPfpqK6hhLae0miMSZ_BGa

_globalsign-domain-verification=e70UZqvudGByIeilV8oO0gubBZi0P7QLakTxKub-zS

anthropic-domain-verification-4va7p1=Uuz4j8MkpGFjBjYBqvNGNuK46

apple-domain-verification=FBF7Yx9o3htFHZ7m

botify-site-verification=sGRcFNKzIkHzx1jtsQ7YkiT8hgWB6RiU

canva-site-verification=JW5MeXNqA7ezvjIRgLOPaQ

cl_verification=a568671a-6112-4bc5-997d-1f06d8389b2e

cursor-domain-verification-dc9ngn=XEN4zLZD2K4p5yMB2JFUNxGIk

facebook-domain-verification=8kvuco8ljlv8t1aedswjypctrp1pk3

globalsign-domain-verification=qV_5Us2mt6FO1Ig5hnG4kYHESYAxuH5-qZ0cRXC-Ig

google-site-verification=7kTMmLFa8kfzTFffAv659zZAhSvDX5lqnB_yuST-xLY

google-site-verification=BUF9CkP4-zm7sN2rDSq6NGRiEkrvvh2k3UdQxwSusrU

google-site-verification=JML6gcy7DbE1dA3JB9W4O6EB9uQ8bpOlJTyniVCgd-o

google-site-verification=Jiabx8hC-zV0E8-hAj40dHCY_oWNIvfqkNe7VFnGbCs

google-site-verification=SprWzGYoIdXdFrUCSyBhXJtHzFjE8FAQNlTamgKenhU

google-site-verification=sHrvDlgokhtbjBWsn8Dhu616EFRRv8GD0C1AU4_1gl4

google-site-verification=y1w1HGdtmQcg92Uy4JtubYkFtDDshCwmDXTFCgjpr-Y

hibp-verify=dweb_9nibj6s7woei7t5h43qd3yni

onetrust-domain-verification=4bc2331ed4d24c81b7be278e6e1fb58b

openai-domain-verification=dv-E4EGw5ZIgYd9B3mwA3dPV5zY

spf2.0/pra include:_spf.google.com include:sendgrid.net include:aspmx.sailthru.com -all

stripe-verification=332820F9A5BCCCACBF2F5D8636496EB723C4062C9B878B8BAB77E99A2522E947

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

yahoo-verification-key=h5B5VELNOFcyiRDJQWEiNChg+SeClI9Bk9k9daiRPR4=

Run live DNS resolution in DNS Lookup tool →

4 address record(s) resolved

4 authoritative nameservers

WHOIS & Identity Lookup

Domain ownership status, registry lifecycle, nameservers, and privacy redaction.

Found

Registrable Domain: khanacademy.org
Registrar Organization: GoDaddy.com, LLC
WHOIS Privacy Status: Public Registration Data
Registry Status Codes: client delete prohibited, client renew prohibited, client transfer prohibited, client update prohibited
Delegated Authoritative Nameservers: ns-1489.awsdns-58.org, ns-125.awsdns-15.com, ns-1664.awsdns-16.co.uk, ns-798.awsdns-35.net
Registration Lifecycle: Registered: 2006 → Expires: 2029

Nameservers (NS)

ns-1489.awsdns-58.orgns-125.awsdns-15.comns-1664.awsdns-16.co.ukns-798.awsdns-35.net

Run dedicated WHOIS query for khanacademy.org →

Domain registered 21+ years ago

Long-established domains are far less likely to be disposable scams.

+15

Registered via GoDaddy.com, LLC

Owner information disclosed

The domain publishes registrant contact info — a small positive transparency signal.

Email Security & Deliverability

SPF record validation, DMARC policy enforcement, DKIM selectors, and MX reputation.

Protected

SPF Record: 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 Policy Mode: Policy: REJECT
DMARC Raw Record: v=DMARC1; p=reject; rua=mailto:dmarc-reports@khanacademy.org; ruf=mailto:dmarc-reports@khanacademy.org
DKIM Selectors Detected: google, s1, s2

Email Protection Summary: This domain has strong email authentication configured to prevent spammers from sending emails impersonating this brand.

Test email deliverability in Email Reputation tool →

SPF record published

DMARC published (reject)

DKIM configured (google, s1, s2)

Threat Intelligence & Blocklists

Multi-source malware feeds (URLhaus), phishing checks (PhishStats, Safe Browsing), and typosquats.

Clean

URLhaus Malware

Clean / Not Listed

PhishStats Feed

Clean / Not Listed

Google Safe Browsing

Clean / Verified

Root Domain Label: khanacademy
Top-Level Domain (TLD): .org (Standard TLD)
Punycode Obfuscation: No (Standard ASCII)
Homoglyph / Lookalike Script: No mixed scripts
Brand Match Analysis: No recognized brand impersonation
Typosquatting Risk: Clean

No impersonation patterns detected

Domain doesn't look like a typosquat, doesn't embed a well-known brand, and uses ASCII characters.

Technology Stack & Metadata

Detected CMS, JavaScript frameworks, analytics tags, CDN providers, and page metadata.

Detected

Detected Technologies by Category

cdn

Cloudflare

Page Metadata & Fingerprint

HTML Title: Client Challenge
Meta Description: —
Document Language: en
Character Encoding: utf-8
Viewport Setting: width=device-width, initial-scale=1
Generator Software: —

Fingerprint tech stack in Technology Detector tool →

1 technologies detected

Cloudflare

Mobile viewport configured

Missing meta description

-2

Page Performance & Compression

Server response time, content payload size, Brotli/Gzip compression, and caching rules.

180ms

Items to Fix & Optimize

Text compression (Brotli/Gzip)

MUCH NEEDEDEnable on server or CDN

Modern image formats (WebP/AVIF/SVG)

OPTIONALConvert heavy images to WebP/AVIF

Protocol

HTTP/2

Binary framing, multiplexed

Compression

NONE

No compression detected

Optimization Signals (From Detectable Headers & Assets)

Image Formats

Legacy / Unchecked

Transfer

Uncompressed

Transport

HTTP/2

These are server-side signals. Actual Core Web Vitals (LCP, INP, CLS) require real-user measurement via PageSpeed Insights.

Detected Asset & Image Formats

WebPAVIFSVGJPEGPNG

HTTP Response Time: 180 ms
Payload Body Size: 3 KB
Compression Status: Uncompressed
Cache Directives: private, no-store

No findings.

AI Content Safety & Red Flags

High-pressure language, payment gateway safety, disposable domain analysis, and deceptive tactics.

Safe

AI Content Evaluation

94/100 — trusted. Long-established domain (20.7 years old), clean threat reputation, no impersonation patterns. Main reasons: domain registered 21+ years ago; not flagged by Google Safe Browsing; popular website — ranked #2,385 worldwide. Minor issues: missing HSTS; missing Content Security Policy.

Payment Red Flags: None (No suspicious payment requests)
High-Pressure Language: None (No artificial urgency detected)
Disposable Domain Risk: No (Established infrastructure)
Text Scanned Depth: 305 characters verified

No scam-correlated language found on the home page

No crypto-only / gift-card / wire-only payment demands, and no obvious urgency tactics.

Server & Hosting Infrastructure

Primary IP address, web server software, CDN edge network, and redirect hop chain.

cloudflare

Primary Web Server: cloudflare
CDN / Cloud Provider: Cloudflare
Primary IP Address: 18.155.75.124
HTTP Status Code: 200 OK
Final Landing Destination: https://www.khanacademy.org/
Redirect Hop Count: 1 hop

Redirect Hop Chain

1.https://khanacademy.org/ → https://www.khanacademy.org/

Lookup IP & ASN in IP Lookup tool →Trace redirects in URL Expander tool →

Site responded with 200

Final URL: https://www.khanacademy.org/. Response time 180ms.

HTTPS is enforced

All redirects stayed on HTTPS. Traffic is encrypted end-to-end.

+10

Fast response (180ms)

Served through Cloudflare

Sites behind a major CDN benefit from DDoS protection and edge caching.

SSL / TLS Certificate

Active Certificate Authority, Common Name, validity period, expiration countdown, and SANs.

Secure

Certificate Authority (Issuer): C=US, O=Amazon, CN=Amazon RSA 2048 M01
Subject Common Name (CN): camp.khankids.org
Validity Period: 165 days remaining (Expires: 2027-04-27T23:59:59Z)
Subject Alternative Names (SANs): 40 domains protected
Certificates Logged (CT): 100 certs recorded

Subject Alternative Names (Sample)

camp.khankids.orgconacademy.comconacademy.orges.pixarinabox.comes.pixarinabox.orgkahnacademy.comkahnacademy.orgkasandbox.orgkhan.cokhanacademy.comkhanacademy.com.brkhanacademy.eskhanacademy.orgkhankids.comkhankids.orgpixarinabox.compixarinabox.orgpt.pixarinabox.compt.pixarinabox.orgsalkhan.comsendgrid.khanacademy.orgwww.conacademy.comwww.conacademy.orgwww.kahnacademy.comwww.kahnacademy.orgwww.khanacademy.comwww.khanacademy.eswww.khankids.comwww.khankids.orgwww.pixarinabox.comwww.pixarinabox.orgwww.salkhan.comwww.youcanlearnanything.orgycla.khanacademy.orgyoucanlearnanything.orgcloud.e.khanacademy.orgview.e.khanacademy.orgcontent.khanacademy.orgfastly.kastatic.orgzero.khanacademy.org+20 more

Check certificate history in SSL Checker tool →

Valid SSL / TLS certificate active

Issued by C=US, O=Amazon, CN=Amazon RSA 2048 M01, valid for 165 remaining days.

+10

Content & Transparency Policies

Linked privacy policy, terms of service, about page, social channels, and published contacts.

Warning

Key Legal & Transparency Pages

privacy PageNot linked

terms PageNot linked

contact PageNot linked

about PageNot linked

refund PageNot linked

shipping PageNot linked

cookies PageNot linked

Policy pages could not be checked

The site showed our scanner a bot-check or short page, so privacy, terms and contact pages were not verified. This is common for large sites and is not counted against them.

Robots.txt & Sitemap Discoverability

Search engine crawler directives, indexability, and declared XML sitemaps.

Present

Robots.txt Directives: Present & Configured
Sitemaps Declared: None in robots.txt
Disallow Rules Count: 0 rules

View Raw robots.txt

<!doctype html>
<html lang="en">
  <head>
    <meta
      http-equiv="Content-Security-Policy"
      content="default-src 'self'; img-src 'self' data:; media-src 'self' data:; object-src 'none'; style-src 'self' 'sha256-o4vzfmmUENEg4chMjjRP9EuW9ucGnGIGVdbl8d0SHQQ='; script-src 'self' 'sha256-a9bHdQGvRzDwDVzx8m+Rzw+0FHZad8L0zjtBwkxOIz4=';"
    />
    <link
      href="/_fs-ch-1T1wmsGaOgGaSxcX/assets/inter-var.woff2"
      rel="preload"
      as="font"
      type="font/woff2"
      crossorigin
    />
    <link href="/_fs-ch-1T1wmsGaOgGaSxcX/assets/styles.css" rel="stylesheet" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <title>Client Challenge</title>
    <style>
      #loading-error {
        font-size: 16px;
        font-family: 'Inter', sans-serif;
        margin-top: 10px;
        margin-left: 10px;
        display: none;
      }
    </style>
  </head>
  <body>
    <noscript>
      <div class="noscript-container">
        <div class="noscript-content">
          <img
            src="/_fs-ch-1T1wmsGaOgGaSxcX/assets/errorIcon.svg"
            alt=""
            role="presentation"
            class="error-icon"
          />
          <span class="noscript-span"
            >JavaScript is disabled in your browser.</span
          >
          <p>Please enable JavaScript to proceed.</p>
        </div>
      </div>
    </noscript>
    <div id="loading-error" role="alert" aria-live="polite">
      A required part of this site couldn’t load. This may be due to a browser
      extension, network issues, or browser settings. Please check your
      connection, disable any ad blockers, or try using a different browser.
    </div>
    <script>
      function loadScript(src) {
        return new Promise((resolve, reject) => {
          const script = document.createElement('script');
          script.onload = resolve;
          script.onerror = (event) => {
            console.error('Script load error event:', event);
            document.getElementById('loading-error').style.display = 'block';
            reject(
              new Error(
                `Failed to load script: ${src}, Please contact the service administrator.`
              )
            );
          };
          script.src = src;
          document.body.appendChild(script);
        });
      }

      loadScript('/_fs-ch-1T1wmsGaOgGaSxcX/errors.js')
        .then(() => {
          const script = document.createElement('script');
          script.src = '/_fs-ch-1T1wmsGaOgGaSxcX/script.js?reload=true';
          script.onerror = (event) => {
            console.error('Script load error event:', event);
            const errorMsg = new Error(
              `Failed to load script: ${script.src}. Please contact the service administrator.`
            );
            console.error(errorMsg);
            handleScriptError();
          };
          document.body.appendChild(script);
        })
        .catch((error) => {
          console.error(error);
        });
    </script>
  </body>
</html>

robots.txt published

Export & Share Intelligence

Download the complete official PDF verification report (all sections and technical signals expanded), or export raw JSON telemetry.

Scan Engine Performance

Automated multi-signal inspection pipeline

v5.1.0 Engine

Signals Analyzed

This scan

Sources Checked

Live security feeds

Scan Duration

4.69s

Full live scan

Last Scan

11/13/2026

Live timestamp

Overall Risk

Low Risk

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