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udemy.com

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

Security headers: B 83/100 (rank #112 of 461) · TLS: TLSv1.3 · Cert expires in 71 days (rank #210 of 459 soonest) · Response: 24.7 ms (rank #7 of 446)

Certificate valid for 71 more days (until Jan 11 05:59:35 2027 GMT).

TLS certificate

Field	Value
Issuer	Google Trust Services
Subject CN	udemy.com
Valid until	Jan 11 05:59:35 2027 GMT
Days left	71
TLS version	TLSv1.3
SAN entries	4

Security headers (83/100, grade B)

Header	Status
`content-security-policy`	default-src 'none'; script-src 'nonce-HcY2sJyK1Kdg7oaaW6LpMB' 'unsafe-eval' https://challe
`x-frame-options`	SAMEORIGIN
`x-content-type-options`	nosniff
`referrer-policy`	same-origin
`permissions-policy`	accelerometer=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(
`strict-transport-security`	missing

Availability & performance

Field	Value
Availability	100% (3/3 probes)
Avg response	24.7 ms
Fastest / slowest	21.8 / 28.3 ms
HTTP status	403 (https)
Server	cloudflare

DNS & robots.txt

Field	Value
A records	104.16.143.237, 104.16.142.237
Nameservers	anna.ns.cloudflare.com, pete.ns.cloudflare.com
MX records	1
robots.txt	absent (n/a sitemap refs, n/a disallow rules)

How udemy.com compares

Site	Headers	Score	Cert days left	ms
stanford.edu	A	100	5	162.5
ox.ac.uk	A	100	64	567.1
cam.ac.uk	A	100	53	103.1
berkeley.edu	B	83	69	35.5
edx.org	B	83	173	122.2
udacity.com	B	83	93	147.3
w3schools.com	B	83	119	1050.3
freecodecamp.org	B	83	72	430.0

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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.