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capitalone.com

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

Security headers: C 67/100 (rank #178 of 461) · TLS: TLSv1.3 · Cert expires in 53 days (rank #112 of 459 soonest) · Response: 1045.7 ms (rank #409 of 446)

Certificate valid for 53 more days (until Dec 24 23:59:59 2026 GMT).

TLS certificate

Field	Value
Issuer	DigiCert Inc
Subject CN	capitalone.com
Valid until	Dec 24 23:59:59 2026 GMT
Days left	53
TLS version	TLSv1.3
SAN entries	7

Security headers (67/100, grade C)

Header	Status
`strict-transport-security`	max-age=31536000
`x-frame-options`	SAMEORIGIN
`x-content-type-options`	nosniff
`referrer-policy`	strict-origin-when-cross-origin
`content-security-policy`	missing
`permissions-policy`	missing

Availability & performance

Field	Value
Availability	100% (3/3 probes)
Avg response	1045.7 ms
Fastest / slowest	911.1 / 1117.1 ms
HTTP status	200 (https)
Server	n/a

DNS & robots.txt

Field	Value
A records	184.31.10.229, 23.1.106.229
Nameservers	ns4.capitalone.com, ns3.capitalone.com, ns5.capitalone.com, a4-67.akam.net
MX records	2
robots.txt	present (1 sitemap refs, 60 disallow rules)

How capitalone.com compares

Site	Headers	Score	Cert days left	ms
hsbc.com	B	83	99	4138.2
citi.com	B	83	160	1253.5
americanexpress.com	B	83	143	2665.7
robinhood.com	B	83	67	464.9
chase.com	C	67	144	905.1
wellsfargo.com	C	67	192	1010.8
discover.com	C	67	87	503.1
fidelity.com	C	67	37	1027.6

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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.