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https://gentoo.org

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
90
GRADE
A
FIX
0
REVIEW
3
PASS
6
INFO
0
Probed from Sao Paulo, Brazil
301 Moved Permanently
Checks
9
6 PASS 3 REVIEW
B
Crawlability
robots.txt present, no sitemap
REVIEW
robots.txt present, no sitemap
Info::
robots.txt is present
Got: 2441 bytes
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

A sitemap helps search engines discover and index your pages more efficiently.

Why this matters

No sitemap.xml — Google relies on crawl-graph discovery alone, slowing indexing of deep or fresh URLs.

Learn more ▾

A sitemap accelerates Google's discovery of new and updated content. Most CMSes auto-generate one; static-site frameworks need a build-step plugin. Reference it from robots.txt and submit in Search Console to confirm Google can fetch it.

Source: sitemaps.org / Google Search Central

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK
Size 2441 B Sitemaps referenced 0 User-agents FriendlyCrawler, GoogleAgent-Mariner, LinerBot, OAI-SearchBot, PanguBot, PhindBot, SBIntuitionsBot, Andibot, CCBot, GoogleOther-Image, SemrushBot-SWA, TikTokSpider, bigsur.ai, Gemini-Deep-Research, meta-externalfetcher, PerplexityBot, quillbot.com, WARDBot, Amazonbot, Applebot-Extended, Cotoyogi, facebookexternalhit, AhrefsBot, Applebot, ClaudeBot, cohere-ai, GoogleOther, MyCentralAIScraperBot, Poseidon Research Crawler, anthropic-ai, Factset_spyderbot, Meta-ExternalFetcher, omgili, Panscient, Thinkbot, YandexAdditional, YandexAdditionalBot, Claude-Web, Crawlspace, FacebookBot, ImagesiftBot, MistralAI-User, Operator, PetalBot, QualifiedBot, AddSearchBot, AI2Bot, Brightbot 1.0, ChatGPT-User, Claude-SearchBot, Claude-User, ICC-Crawler, Meta-ExternalAgent, CloudVertexBot, DuckAssistBot, FirecrawlAgent, netEstate Imprint Crawler, NovaAct, omgilibot, Perplexity-User, Sidetrade indexer bot, Ai2Bot-Dolma, Awario, Bytespider, GPTBot, ISSCyberRiskCrawler, YouBot, *, EchoboxBot, iaskspider/2.0, QuillBot, Webzio-Extended, wpbot, Devin, Echobot Bot, ChatGPT Agent, Diffbot, img2dataset, OpenAI, Scrapy, bedrockbot, Datenbank Crawler, Google-CloudVertexBot, Kangaroo Bot, SemrushBot-OCOB, Timpibot, YaK, cohere-training-data-crawler, Google-Extended, MistralAI-User/1.0, panscient.com, VelenPublicWebCrawler, aiHitBot, GoogleOther-Video, meta-externalagent Blocking No — crawling allowed
User-agent: AhrefsBot
Disallow: /

User-agent: AddSearchBot
User-agent: AI2Bot
User-agent: Ai2Bot-Dolma
User-agent: aiHitBot
User-agent: Amazonbot
User-agent: Andibot
User-agent: anthropic-ai
User-agent: Applebot
User-agent: Applebot-Extended
User-agent: Awario
User-agent: bedrockbot
User-agent: bigsur.ai
User-agent: Brightbot 1.0
User-agent: Bytespider
User-agent: CCBot
User-agent: ChatGPT Agent
User-agent: ChatGPT-User
User-agent: Claude-SearchBot
User-agent: Claude-User
User-agent: Claude-Web
User-agent: ClaudeBot
User-agent: CloudVertexBot
User-agent: cohere-ai
User-agent: cohere-training-data-crawler
User-agent: Cotoyogi
User-agent: Crawlspace
User-agent: Datenbank Crawler
User-agent: Devin
User-agent: Diffbot
User-agent: DuckAssistBot
User-agent: Echobot Bot
User-agent: EchoboxBot
User-agent: FacebookBot
User-agent: facebookexternalhit
User-agent: Factset_spyderbot
User-agent: FirecrawlAgent
User-agent: FriendlyCrawler
User-agent: Gemini-Deep-Research
User-agent: Google-CloudVertexBot
User-agent: Google-Extended
User-agent: GoogleAgent-Mariner
User-agent: GoogleOther
User-agent: GoogleOther-Image
User-agent: GoogleOther-Video
User-agent: GPTBot
User-agent: iaskspider/2.0
User-agent: ICC-Crawler
User-agent: ImagesiftBot
User-agent: img2dataset
User-agent: ISSCyberRiskCrawler
User-agent: Kangaroo Bot
User-agent: LinerBot
User-agent: meta-externalagent
User-agent: Meta-ExternalAgent
User-agent: meta-externalfetcher
User-agent: Meta-ExternalFetcher
User-agent: MistralAI-User
User-agent: MistralAI-User/1.0
User-agent: MyCentralAIScraperBot
User-agent: netEstate Imprint Crawler
User-agent: NovaAct
User-agent: OAI-SearchBot
User-agent: omgili
User-agent: omgilibot
User-agent: OpenAI
User-agent: Operator
User-agent: PanguBot
User-agent: Panscient
User-agent: panscient.com
User-agent: Perplexity-User
User-agent: PerplexityBot
User-agent: PetalBot
User-agent: PhindBot
User-agent: Poseidon Research Crawler
User-agent: QualifiedBot
User-agent: QuillBot
User-agent: quillbot.com
User-agent: SBIntuitionsBot
User-agent: Scrapy
User-agent: SemrushBot-OCOB
User-agent: SemrushBot-SWA
User-agent: Sidetrade indexer bot
User-agent: Thinkbot
User-agent: TikTokSpider
User-agent: Timpibot
User-agent: VelenPublicWebCrawler
User-agent: WARDBot
User-agent: Webzio-Extended
User-agent: wpbot
User-agent: YaK
User-agent: YandexAdditional
User-agent: YandexAdditionalBot
User-agent: YouBot
Disallow: /

User-agent: *
Allow: /
sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

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.gentoo.org/
200https://gentoo.org/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://gentoo.org/ → https://gentoo.org/

Consistent

B
TLS Certificate Expiry & Recommendations
46 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

46
days left
0d 30d 60d 90d+

Recommended actions

  • Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
  • Add includeSubDomains to the HSTS directive
  • Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+
DNS Records
6 A records, 189 ms lookup
PASS
6 A records, 189 ms lookup
Info::
Resolves to 6 IPv4 address(es)
Got: 146.75.109.91, 151.101.1.91, 151.101.65.91, 151.101.129.91, 151.101.193.91, 151.101.213.91
Info::
Has 6 IPv6 (AAAA) record(s)
Got: 2a04:4e42::347, 2a04:4e42:32::347, 2a04:4e42:8b::347, 2a04:4e42:200::347, 2a04:4e42:400::347, 2a04:4e42:600::347
Info::
4 nameserver(s) configured
Got: ns1.gentoo.org, ns2.gentoo.org, ns3.gentoo.org, ns4.gentoo.org
Info::
1 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: 189 ms
Got: 189 ms
A146.75.109.91, 151.101.1.91, 151.101.65.91, 151.101.129.91, 151.101.193.91, 151.101.213.91
AAAA2a04:4e42::347, 2a04:4e42:32::347, 2a04:4e42:8b::347, 2a04:4e42:200::347, 2a04:4e42:400::347, 2a04:4e42:600::347
CNAME—
NSns1.gentoo.org, ns2.gentoo.org, ns3.gentoo.org, ns4.gentoo.org
MX
10 mail.gentoo.org
TXT
hibp-verify=dweb_tb9fks1uzgj4gl7mh1cvlazr
have-i-been-pwned-verification=6b3f8fa57575612e2a08a985549020c9
google-site-verification=STcs6DxN7jSUEFJzJ7O9KzcsuHxX3Oq1jk_ua2xV64E
google-site-verification=TghnZBoJySbGjLcdxG0LaQW4CEySKKUn-joa4u72Z2Q
google-site-verification=WjowzRhWnytv0y7RnR9sAJFzAP5KDikCubfMt83FaCo
SPF v=spf1 a:smtp.gentoo.org a:lists.gentoo.org a:liststest.gentoo.org include:_netb...
CAALookup not available with standard resolver
Resolved in 189 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), 966 ms total
PASS
1 redirect(s), 966 ms total
Info::
Single redirect
Got: https://gentoo.org → https://www.gentoo.org/ (301)
Info::
WWW normalization redirect
Info::
Redirect overhead: 966 ms total
Got: 966 ms

https://gentoo.org

677 ms · HTTP/1.1

301

https://www.gentoo.org/

289 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://gentoo.org301677 msHTTP/1.1nginx
2https://www.gentoo.org/200289 msHTTP/1.1nginx

See the visual redirect chain in the HTTP Probe tab →

A+
IPv6 Readiness
IPv6 reachable (1 ms)
PASS
IPv6 reachable (1 ms)
Info::
IPv6 is configured and reachable at 2a04:4e42::347, 2a04:4e42:32::347, 2a04:4e42:8b::347, 2a04:4e42:200::347, 2a04:4e42:400::347, 2a04:4e42:600::347
Got: 1 ms connect
IPv6 Ready
AAAA Records 2a04:4e42::347, 2a04:4e42:32::347, 2a04:4e42:8b::347, 2a04:4e42:200::347, 2a04:4e42:400::347, 2a04:4e42:600::347 Connection Reachable (1 ms)
A+
Domain Intelligence
gentoo.org — via Amazon Registrar, Inc., 26 years, 11 months old
PASS
gentoo.org — via Amazon Registrar, Inc., 26 years, 11 months old
Info::
Domain registered until Oct 4, 2029 (3 years, 6 months remaining)
Info::
DNSSEC is enabled
Info::
Registrar: Amazon Registrar, 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

1174 days

October 4, 2029

SSL certificate

46 days

Issued by Let's Encrypt

Domain age

26 years, 11 months

Registered October 4, 1999

DNSSEC

Enabled

Protects against DNS spoofing

Hosting

Unknown

2a04:4e42::347

Registrar

Amazon Registrar, Inc.

Unlocked 4 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 Amazon Registrar, Inc.
Created October 4, 1999 (26 years, 11 months ago)
Expires October 4, 2029 (3 years, 6 months)
Last Updated April 21, 2026
Name Servers ns4.gentoo.org, ns3.gentoo.org, ns2.gentoo.org, ns1.gentoo.org
DNSSEC Enabled
Hosting
IP Address 2a04:4e42::347
Data source: rdap (0.4s)

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 772 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
196 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
189 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
196 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
772 ms
Total Time Total request time from DNS lookup through full response.
773 ms

Connection waterfall

DNS Lookup 196 ms TCP Connect 189 ms TLS Handshake 196 ms Server Processing 191 ms Content Transfer 0 ms
A+
CDN & Delivery
Fastly (HIT)
PASS
Fastly (HIT)
Info::
Site is served via Fastly CDN
Got: x-served-by: cache-yyc1430028-YYC
Info::
CDN cache status: HIT
CDN Detected: Fastly
Provider Fastly Cache Status HIT Evidence x-served-by: cache-yyc1430028-YYC
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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