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heroku.com

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

Security headers: A 100/100 (rank #7 of 461) · TLS: TLSv1.3 · Cert expires in 35 days (rank #41 of 459 soonest) · Response: 72.1 ms (rank #90 of 446)
Certificate valid for 35 more days (until Dec 6 06:03:45 2026 GMT).

TLS certificate

FieldValue
IssuerLet's Encrypt
Subject CNheroku.com
Valid untilDec 6 06:03:45 2026 GMT
Days left35
TLS versionTLSv1.3
SAN entries2

Security headers (100/100, grade A)

HeaderStatus
strict-transport-securitymax-age=31536000
content-security-policydefault-src https: data: wss://*.hotjar.com wss://*.crazyegg.com *.crazyegg.com wss://*.zo
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
referrer-policyno-referrer-when-downgrade
permissions-policyautoplay=(), camera=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), publicke
none missing 🎉

Availability & performance

FieldValue
Availability100% (3/3 probes)
Avg response72.1 ms
Fastest / slowest62.3 / 86.0 ms
HTTP status200 (https)
Servernginx

DNS & robots.txt

FieldValue
A records192.0.66.110
Nameserversdns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net
MX records1
robots.txtpresent (1 sitemap refs, 5 disallow rules)

How heroku.com compares

SiteHeadersScoreCert days leftms
cloudflare.comA10033181.2
upcloud.comA1004257.3
vercel.comB8353100.7
render.comB8347142.1
cloud.google.comB8359205.4
hetzner.comB83891179.8
vultr.comB83186215.4
linode.comC67155078.9

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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.