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https://raspberrypi.org

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
94
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.raspberrypi.org/
200https://raspberrypi.org/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://raspberrypi.org/ → https://www.raspberrypi.org/

Consistent

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

Certificate validity

73
days left
0d 30d 60d 90d+

Recommended actions

  • Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
  • 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: 9eff0e297cedf83c-CDG
CDN Detected: Cloudflare
Provider Cloudflare Evidence cf-ray: 9eff0e297cedf83c-CDG
A+
DNS Records
2 A records, 48 ms lookup
PASS
2 A records, 48 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 104.20.23.243, 172.66.149.158
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700:10::6814:17f3, 2606:4700:10::ac42:959e
Info::
2 nameserver(s) configured
Got: tony.ns.cloudflare.com, april.ns.cloudflare.com
Info::
5 mail exchanger(s) configured
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
SPF record present in TXT
Info::
DNS resolution time: 48 ms
Got: 48 ms
A104.20.23.243, 172.66.149.158
AAAA2606:4700:10::6814:17f3, 2606:4700:10::ac42:959e
CNAME—
NStony.ns.cloudflare.com, april.ns.cloudflare.com
MX
1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 alt4.aspmx.l.google.com
10 alt3.aspmx.l.google.com
TXT
SPF v=spf1 include:_spf.google.com include:aspmx.pardot.com include:mail.zendesk.com...
pardot800983=c44249c9f5da1bfbf33a10a397235d219b4be95e98457f7d4652d3bf374e9784
0ed1fe018af8dc85cf7c7248b38c5d99c7c16a8d3f
cursor-domain-verification-zk8d33=e13JxdZX9VUWNfxzdRhTPWP5x
apple-domain-verification=Eb1jiiZT9U7Gbcrq
openai-domain-verification=dv-BPbxA2vBQDwvlQ6F0XMR8ABA
security_policy=https://www.raspberrypi.org/contact/security/
docusign=d8ff0ddb-5029-434e-a283-e1988b187710
google-site-verification=KmsnTP6T5_z55dGozUBNTaSoLzJTRbOedayCBLN7CPA
facebook-domain-verification=wqki2a0ywwv9og53cciqrgjbmacrqs
onetrust-domain-verification=42e0b0ebebca4b958dc4bd5308713ee9
uber-domain-verification=5c327d91-2402-4dee-b998-9f79e37efa9a
security_contact=mailto:security@raspberrypi.org
security_contact=https://keybase.io/rpfwebteam
CAALookup not available with standard resolver
Resolved in 48 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.

A
Redirect Chain
1 redirect(s), 292 ms total
PASS
1 redirect(s), 292 ms total
Info::
Single redirect
Got: https://raspberrypi.org → https://www.raspberrypi.org/ (301)
Info::
WWW normalization redirect

https://raspberrypi.org

110 ms · HTTP/1.1

301

https://www.raspberrypi.org/

183 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://raspberrypi.org301110 msHTTP/1.1cloudflare
2https://www.raspberrypi.org/200183 msHTTP/1.1cloudflare

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::6814:17f3, 2606:4700:10::ac42:959e
Got: 17 ms connect
IPv6 Ready
AAAA Records 2606:4700:10::6814:17f3, 2606:4700:10::ac42:959e Connection Reachable (17 ms)
A+
Crawlability
robots.txt present, sitemap with 11 URLs
PASS
robots.txt present, sitemap with 11 URLs
Info::
robots.txt is present
Got: 165 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 11 entries
Info::
Sitemap index with 11 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 165 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
User-agent: *
Disallow: /forms/*
Disallow: /esi/*
Disallow: /wp/wp-admin/
Allow: /wp/wp-admin/admin-ajax.php

Sitemap: https://www.raspberrypi.org/sitemap_index.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 11 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
raspberrypi.org — via Tucows Domains Inc., 17 years, 10 months old
PASS
raspberrypi.org — via Tucows Domains Inc., 17 years, 10 months old
Info::
Domain registered until Sep 15, 2029 (3 years, 5 months remaining)
Info::
DNSSEC is enabled
Info::
Registrar: Tucows Domains Inc.
Warning::
Registrar lock is NOT enabled
The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.
Domain expiry

1188 days

September 15, 2029

SSL certificate

73 days

Issued by Let's Encrypt

Domain age

17 years, 10 months

Registered September 15, 2008

DNSSEC

Enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700:10::6814:17f3

Registrar

Tucows Domains Inc.

Unlocked 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Tucows Domains Inc.
Created September 15, 2008 (17 years, 10 months ago)
Expires September 15, 2029 (3 years, 5 months)
Last Updated April 26, 2023
Name Servers april.ns.cloudflare.com, tony.ns.cloudflare.com
DNSSEC Enabled
Hosting
IP Address 2606:4700:10::6814:17f3
Data source: rdap (0.6s)

The domain can be transferred without an unlock step. Enable registrar lock (clientTransferProhibited) in your registrar's control panel to protect against unauthorized or accidental transfers.

Why this matters

Without registrar lock, an attacker who phishes your registrar credentials can transfer the domain in minutes — total brand hijack.

Learn more ▾

Registrar lock (clientTransferProhibited, clientUpdateProhibited, clientDeleteProhibited) requires extra verification before any transfer/update/delete. Every major registrar offers it free. Combined with 2FA on your registrar account, it's the strongest defense against domain hijacking.

Source: ICANN / domain-security best practice

A+
HTTP Probe Timing
Total 139 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.
16 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.
139 ms
Total Time Total request time from DNS lookup through full response.
139 ms

Connection waterfall

DNS Lookup 32 ms TCP Connect 16 ms TLS Handshake 22 ms Server Processing 69 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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