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zendesk.com

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

Security headers: C 50/100 (rank #238 of 461) · TLS: TLSv1.3 · Cert expires in 82 days (rank #256 of 459 soonest) · Response: 160.8 ms (rank #203 of 446)
Certificate valid for 82 more days (until Jan 22 13:59:53 2027 GMT).

TLS certificate

FieldValue
IssuerLet's Encrypt
Subject CNzendesk.com
Valid untilJan 22 13:59:53 2027 GMT
Days left82
TLS versionTLSv1.3
SAN entries2

Security headers (50/100, grade C)

HeaderStatus
strict-transport-securitymax-age=0; preload
content-security-policydefault-src * wss://*.zopim.com 'unsafe-inline' 'unsafe-eval'; frame-ancestors 'self' *.ze
x-content-type-optionsnosniff
x-frame-optionsmissing
referrer-policymissing
permissions-policymissing

Availability & performance

FieldValue
Availability100% (3/3 probes)
Avg response160.8 ms
Fastest / slowest134.4 / 203.4 ms
HTTP status200 (https)
Servercloudflare

DNS & robots.txt

FieldValue
A records216.198.54.2, 216.198.53.2
Nameserversns-1213.awsdns-23.org, ns-1858.awsdns-40.co.uk, ns-444.awsdns-55.com, ns-754.awsdns-30.net
MX records6
robots.txtpresent (1 sitemap refs, 27 disallow rules)

How zendesk.com compares

SiteHeadersScoreCert days leftms
coda.ioB836927.2
hubspot.comB8339236.9
canva.comB8318465.0
dropbox.comB83167504.0
asana.comC6770103.4
figma.comC6794181.8
miro.comC6791256.0
clickup.comC6714225.1

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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.