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https://www.bitwarden.com

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
92
GRADE
A
FIX
0
REVIEW
3
PASS
6
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
6 PASS 3 REVIEW
B
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.bitwarden.com/
200https://bitwarden.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://www.bitwarden.com/ → https://www.bitwarden.com/

Consistent

B
TLS Certificate Expiry & Recommendations
47 days until leaf cert expires — 2 issues to address
REVIEW

Certificate validity

47
days left
0d 30d 60d 90d+

Recommended actions

  • Submit your domain to hstspreload.org to be added to the Chrome preload list
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
B
CDN & Delivery
Cloudflare
REVIEW
Cloudflare
Info::
Site is served via Cloudflare CDN (edge: CDG)
Got: cf-ray: 9e8bb2183f92d121-CDG
CDN Detected: Cloudflare
Provider Cloudflare Evidence cf-ray: 9e8bb2183f92d121-CDG
A
DNS Records
2 A records, 32 ms lookup
PASS
2 A records, 32 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 172.66.171.37, 104.20.29.114
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700:10::6814:1d72, 2606:4700:10::ac42:ab25
Info::
No NS records found
Info::
No MX records — email not configured via DNS
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
No SPF record found in TXT records
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Info::
DNS resolution time: 32 ms
Got: 32 ms
A172.66.171.37, 104.20.29.114
AAAA2606:4700:10::6814:1d72, 2606:4700:10::ac42:ab25
CNAME—
NS—
MX—
TXT—
CAALookup not available with standard resolver
Resolved in 32 ms

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

Why this matters

Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.

SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.

Why this matters

Without SPF, receiving servers can't validate sending IPs — your domain is easier to spoof in phishing.

Learn more ▾

SPF complements DMARC. Both should be published. SPF records list authorized sending IPs (e.g., `v=spf1 include:_spf.google.com ~all` for Google Workspace). After publishing, verify in Google Postmaster Tools or mxtoolbox.

Source: RFC 7208 (SPF)

A
Redirect Chain
1 redirect(s), 99 ms total
PASS
1 redirect(s), 99 ms total
Info::
Single redirect
Got: https://www.bitwarden.com → https://bitwarden.com/ (301)
Info::
WWW normalization redirect

https://www.bitwarden.com

63 ms · HTTP/1.1

301

https://bitwarden.com/

35 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://www.bitwarden.com30163 msHTTP/1.1cloudflare
2https://bitwarden.com/20035 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

A+
IPv6 Readiness
IPv6 reachable (17 ms)
PASS
IPv6 reachable (17 ms)
Info::
IPv6 is configured and reachable at 2606:4700:10::6814:1d72, 2606:4700:10::ac42:ab25
Got: 17 ms connect
IPv6 Ready
AAAA Records 2606:4700:10::6814:1d72, 2606:4700:10::ac42:ab25 Connection Reachable (17 ms)
A+
Crawlability
robots.txt present, sitemap with 7 URLs
PASS
robots.txt present, sitemap with 7 URLs
Info::
robots.txt is present
Got: 526 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 7 entries
Info::
Sitemap index with 7 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 526 B Sitemaps referenced 1 User-agents GPTBot, ClaudeBot, PerplexityBot, anthropic-ai, CCBot, *, OAI-SearchBot, Claude-SearchBot, Amazonbot, Bytespider Blocking No — crawling allowed
User-agent: *
Allow: /
Disallow: /*.md$
Disallow: /*.pdf$

Sitemap: https://bitwarden.com/sitemap-index.xml
Host: https://bitwarden.com

User-agent: GPTBot
User-agent: OAI-SearchBot
User-agent: ClaudeBot
User-agent: Claude-SearchBot
User-agent: PerplexityBot
User-agent: Amazonbot
User-agent: anthropic-ai
User-agent: Bytespider
User-agent: CCBot

Allow: /llms.txt
Allow: /blog/llms-full.txt
Allow: /help/llms-full.txt
Allow: /resources/llms-full.txt
Allow: /*.md$
Disallow: /*.pdf$
Disallow: */careers/*
Disallow: */events/*
sitemap.xml 200 OK
Type Sitemap Index URLs 7 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
bitwarden.com — via Cloudflare, Inc., 10 years, 6 months old, hosted on Fastly
PASS
bitwarden.com — via Cloudflare, Inc., 10 years, 6 months old, hosted on Fastly
Info::
Domain registered until Nov 16, 2027 (1 years, 7 months remaining)
Info::
DNSSEC is enabled
Info::
Registrar: Cloudflare, Inc.
Info::
Hosting: Fastly
Got: AS54113
Domain expiry

521 days

November 16, 2027

SSL certificate

47 days

Issued by Google Trust Services

Domain age

10 years, 6 months

Registered November 16, 2015

DNSSEC

Enabled

Protects against DNS spoofing

Hosting

Fastly

ASN AS54113

151.101.129.91

Registrar

Cloudflare, Inc.

Lock status unknown 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar Cloudflare, Inc.
Created November 16, 2015 (10 years, 6 months ago)
Expires November 16, 2027 (1 years, 7 months)
Last Updated September 1, 2022
Name Servers igor.ns.cloudflare.com, rose.ns.cloudflare.com
DNSSEC Enabled
Hosting
IP Address 151.101.129.91
ASN AS54113 (FASTLY - Fastly, Inc., US)
Provider Fastly
Data source: rdap (0.3s)
A+
HTTP Probe Timing
Total 92 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
32 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
17 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
22 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
92 ms
Total Time Total request time from DNS lookup through full response.
92 ms

Connection waterfall

DNS Lookup 32 ms TCP Connect 17 ms TLS Handshake 22 ms Server Processing 21 ms Content Transfer 0 ms
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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