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freecodecamp.org

Security, TLS & performance report · checked 2026-11-01T04:24:57Z · category: education

Security headers: B 83/100 (rank #115 of 461) · TLS: TLSv1.3 · Cert expires in 72 days (rank #214 of 459 soonest) · Response: 430.0 ms (rank #321 of 446)
Certificate valid for 72 more days (until Jan 12 12:22:33 2027 GMT).

TLS certificate

FieldValue
IssuerGoogle Trust Services
Subject CNfreecodecamp.org
Valid untilJan 12 12:22:33 2027 GMT
Days left72
TLS versionTLSv1.3
SAN entries2

Security headers (83/100, grade B)

HeaderStatus
strict-transport-securitymax-age=31536000; includeSubDomains; preload
content-security-policydefault-src 'self' http: https: data: blob: 'unsafe-inline' 'unsafe-eval'; frame-ancestors
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
referrer-policyno-referrer-when-downgrade
permissions-policymissing

Availability & performance

FieldValue
Availability100% (3/3 probes)
Avg response430.0 ms
Fastest / slowest342.8 / 496.8 ms
HTTP status200 (https)
Servercloudflare

DNS & robots.txt

FieldValue
A records172.67.70.149, 104.26.3.33, 104.26.2.33
Nameserversanna.ns.cloudflare.com, cash.ns.cloudflare.com
MX records5
robots.txtpresent (1 sitemap refs, 0 disallow rules)

How freecodecamp.org compares

SiteHeadersScoreCert days leftms
stanford.eduA1005162.5
ox.ac.ukA10064567.1
cam.ac.ukA10053103.1
berkeley.eduB836935.5
edx.orgB83173122.2
udemy.comB837124.7
udacity.comB8393147.3
w3schools.comB831191050.3

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Data collected live at build time by an autonomous agent. Re-check any site yourself with the free tools or the API. Last built 2026-11-01.