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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
87
GRADE
B
FIX
0
REVIEW
3
PASS
6
INFO
0
Probed from New York, United Stated
301 Moved Permanently
Checks
9
6 PASS 3 REVIEW
C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

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.ranker.com/
200https://ranker.com/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://ranker.com/ https://www.ranker.com/

Consistent

B
TLS Certificate Expiry & Recommendations
153 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

153
days left
0d 30d 60d 90d+

Recommended actions

  • Enable HSTS: Strict-Transport-Security: max-age=31536000; includeSubDomains
  • Enable DNSSEC on your domain for DNS spoofing protection
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
A+
DNS Records
4 A records, 8 ms lookup
PASS
4 A records, 8 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 151.101.195.11, 151.101.131.11, 151.101.3.11, 151.101.67.11
Info::
No IPv6 (AAAA) records
Info::
2 nameserver(s) configured
Got: elsa.ns.cloudflare.com, ian.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: 8 ms
Got: 8 ms
A151.101.195.11, 151.101.131.11, 151.101.3.11, 151.101.67.11
AAAA
CNAME
NSelsa.ns.cloudflare.com, ian.ns.cloudflare.com
MX
1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 alt4.aspmx.googlemail.com
10 alt3.aspmx.googlemail.com
TXT
5931c6cbe5d34a8ba3e3df1f6df54354
_globalsign-domain-verification=R1bvWDvJUF1gpXlmc7Q3deFwpZciil5dpJR4t-a8XM
_globalsign-domain-verification=SQONiBgTxRVzPPtIHjei_IUGCiAa0KxoVWFw1QfVes
_globalsign-domain-verification=mgS7wKROK2_MMsG_5_Qd4dKIGuTLXbCuOEHzfFAaDu
apple-domain-verification=edykha2YhibLXlct
atlassian-domain-verification=aue17bMlckop0yJT92alkaO3fRnBcGpjLxQiPPC6axDLkPXu-1...
facebook-domain-verification=w5xu8gdevyd7v4wqvm9qibon7dvhh5
globalsign-domain-verification=8frsHcE2ag-0ccaaP5BTpPmUJC8ob8pdjDQchfAWzD
google-site-verification=DuJOGvTjO_yyqB6rGW6lzOOqUE-o_xLhfQeBHf415fQ
google-site-verification=_XSw0m_pkesvita5g68cVTl9GIDfvUlj8AkaoJ-M1B8
google-site-verification=jqHABK4Jkg-lEBRepYp99T1QQQXCC26kLj6yPjYZEeg
qp53mbb5h00qmj19w91jz0g3wrs5j0zv
SPF v=spf1 ip4:173.193.210.57 include:_spf.google.com include:aspmx.sailthru.com -al...
yahoo-verification-key=zlsEByKn+Okxqt7fH1B8SKCIxyH/QUT8UFt7q6imi6k=
CAALookup not available with standard resolver
Resolved in 8 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), 31 ms total
PASS
1 redirect(s), 31 ms total
Info::
Single redirect
Got: https://ranker.com → https://www.ranker.com/ (301)
Info::
WWW normalization redirect

https://ranker.com

16 ms · HTTP/1.1

301

https://www.ranker.com/

14 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://ranker.com30116 msHTTP/1.1Varnish
2https://www.ranker.com/20014 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 4 URLs
PASS
robots.txt present, sitemap with 4 URLs
Info::
robots.txt is present
Got: 3406 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 4 entries
Info::
Sitemap index with 4 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 3406 B Sitemaps referenced 4 User-agents Applebot, Googlebot, meta-webindexer, Twitterbot, cohere-ai, GPTBot, Googlebot-Video, BingPreview, LinkedInBot, CCBot, omgili, Claude-User, GoogleOther, AliyunSecBot, anthropic-ai, cohere-training-data-crawler, FacebookBot, GrokBot, iAskBot, Amazonbot, DeepseekBot, ImagesiftBot, meta-externalagent, omgilibot, Googlebot-Image, BingBot, ChatGPT-User, DuckDuckBot, facebookexternalhit, Grok-DeepSearch, meta-externalfetcher, MistralAI-User, bigsur.ai, OAI-SearchBot, Slackbot, AI2Bot, AI2Bot-Dolma, Petalbot, webzio-extended, *, Claude-SearchBot, Perplexity-User, Applebot-Extended, Bytespider, Diffbot, webzio, PerplexityBot, xAI-Grok, ClaudeBot, Timpibot Blocking No — crawling allowed
# Ranker content is made available for your personal, non-commercial
# use subject to our Terms of Service here: https://www.ranker.com/terms
# Use of any device, tool, or process designed to data mine or scrape the
# content using automated means is prohibited without prior written permission.
# from Ranker, Inc.
# Prohibited uses include but are not limited to:
# (1) text and data mining activities under Art. 4 of the EU Directive on
# Copyright in the Digital Single Market;
# (2) the development of any software, machine learning, artificial
# intelligence (AI), and/or large language models (LLMs);
# (3) creating or providing archived or cached data sets containing our
# content to others; and/or
# (4) any commercial purposes.
# Contact https://business.ranker.com/contact for assistance.


# (A) ALLOW: SOCIAL PREVIEWS & SEARCH AI (RAG / Citations)
# We allow these for real-time user-requested citations and link previews.
User-agent: Applebot
User-agent: BingBot
User-agent: BingPreview
User-agent: ChatGPT-User
User-agent: Claude-SearchBot
User-agent: Claude-User
User-agent: DuckDuckBot
User-agent: facebookexternalhit
User-agent: Grok-DeepSearch
User-agent: Googlebot
User-agent: GoogleOther
User-agent: LinkedInBot
User-agent: meta-externalfetcher
User-agent: meta-webindexer
User-agent: MistralAI-User
User-agent: OAI-SearchBot
User-agent: PerplexityBot
User-agent: Perplexity-User
User-agent: Slackbot
User-agent: Twitterbot
User-agent: xAI-Grok
Disallow: /app
Disallow: /commentary
Disallow: /listcommentary
Disallow: /extlink
Disallow: /node
Disallow: /suggestions
Disallow: /widget
Disallow: /pics
Disallow: /review
Disallow: /amp
Disallow: /*US_CENSUS_NAME*
Allow: /


# (B) BLOCK: AI TRAINING & DATA AGGREGATORS
# These bots are known to scrape for LLM training or commercial data reselling.
User-agent: AI2Bot
User-agent: AI2Bot-Dolma
User-agent: AliyunSecBot
User-agent: Amazonbot
User-agent: anthropic-ai
User-agent: Applebot-Extended
User-agent: bigsur.ai
User-agent: Bytespider
User-agent: CCBot
User-agent: ClaudeBot
User-agent: cohere-ai
User-agent: cohere-training-data-crawler
User-agent: DeepseekBot
User-agent: Diffbot
User-agent: FacebookBot
User-agent: GPTBot
User-agent: GrokBot
User-agent: iAskBot
User-agent: ImagesiftBot
User-agent: meta-externalagent
User-agent: omgili
User-agent: omgilibot
User-agent: Petalbot
User-agent: Timpibot
User-agent: webzio
User-agent: webzio-extended
Disallow: /


# (C) MEDIA CRAWLERS (Images & Video)
# Note: /pics is intentionally allowed here for media indexing.
User-agent: Googlebot-Image 
User-agent: Googlebot-Video 
Disallow: /app 
Disallow: /commentary 
Disallow: /listcommentary 
Disallow: /extlink 
Disallow: /node 
Disallow: /suggestions 
Disallow: /widget 
Disallow: /review 
Disallow: /amp 
Disallow: /*US_CENSUS_NAME*
Allow: /  


# (D) GENERAL SEARCH ENGINES & SEO TOOLS
User-agent: *
Disallow: /app
Disallow: /commentary
Disallow: /listcommentary
Disallow: /extlink
Disallow: /node
Disallow: /suggestions
Disallow: /widget
Disallow: /pics
Disallow: /review
Disallow: /amp
Disallow: /*US_CENSUS_NAME*


# Sitemaps
Sitemap: https://www.ranker.com/sitemaps/list/sitemap-list-index.xml
Sitemap: https://www.ranker.com/sitemaps/user/sitemap-user-index.xml
Sitemap: https://www.ranker.com/sitemaps/google-news/sitemap-google-news-index.xml
Sitemap: https://www.ranker.com/sitemaps/collection/sitemap-collection-index.xml
A+
Domain Intelligence
ranker.com — via GoDaddy.com, LLC, 26 years, 5 months old, hosted on Fastly
PASS
ranker.com — via GoDaddy.com, LLC, 26 years, 5 months old, hosted on Fastly
Info::
Domain registered until Apr 8, 2027 (11 months remaining)
Info::
DNSSEC is not enabled
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
Info::
Registrar: GoDaddy.com, LLC
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.
Info::
Hosting: Fastly
Got: AS54113
Domain expiry

296 days

April 8, 2027

SSL certificate

153 days

Issued by Sectigo Limited

Domain age

26 years, 5 months

Registered April 8, 2000

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Fastly

ASN AS54113

151.101.195.11

Registrar

GoDaddy.com, LLC

Unlocked 2 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar GoDaddy.com, LLC
Created April 8, 2000 (26 years, 5 months ago)
Expires April 8, 2027 (11 months)
Last Updated April 8, 2025
Name Servers elsa.ns.cloudflare.com, ian.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 151.101.195.11
ASN AS54113 (FASTLY - Fastly, Inc., US)
Provider Fastly
Data source: rdap (0.1s)

DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.

Why this matters

Without DNSSEC, an attacker who can poison your DNS can hijack your domain — and SSL certs alone don't stop them.

Learn more

DNSSEC adds cryptographic signatures to DNS records, preventing forged responses from poisoning resolver caches. Without it, an attacker who controls the network path can redirect your domain to a malicious server before any HTTPS handshake happens. Most modern registrars (Cloudflare, Google Domains, Route 53) enable it with one toggle.

Source: ICANN / RFC 4033

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

Connection waterfall

DNS Lookup 12 ms TCP Connect 1 ms TLS Handshake 5 ms Server Processing 1 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-lga21976-LGA
Info::
CDN cache status: HIT
CDN Detected: Fastly
Provider Fastly Cache Status HIT Evidence x-served-by: cache-lga21976-LGA
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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