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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
90
GRADE
A
FIX
0
REVIEW
2
PASS
6
INFO
1
Probed from Santa Clara, United States
301 Moved Permanently
Checks
9
6 PASS 2 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
TLS Certificate Expiry & Recommendations
122 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

122
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: 18.155.202.95, 18.155.202.81, 18.155.202.60, 18.155.202.36
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-1199.awsdns-21.org, ns-1897.awsdns-45.co.uk, ns-318.awsdns-39.com, ns-965.awsdns-56.net
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
A18.155.202.95, 18.155.202.81, 18.155.202.60, 18.155.202.36
AAAA—
CNAME—
NSns-1199.awsdns-21.org, ns-1897.awsdns-45.co.uk, ns-318.awsdns-39.com, ns-965.awsdns-56.net
MX
10 aspmx.l.google.com
20 alt1.aspmx.l.google.com
20 alt2.aspmx.l.google.com
30 alt4.aspmx.l.google.com
30 alt3.aspmx.l.google.com
TXT
ZOOM_verify_Dk3gIev3Sjy6v0NI9nZbjw
_globalsign-domain-verification=IpuQaKjAZHBK8Np3vVZijMQNk6uo5aGbtzustuhGaD
_globalsign-domain-verification=kciTRJkslWv8ffW-mLos3S-5xprxazuk8YiF7qtqi2
aCsMqpRg9n07uIGM2LZwdaQ0QxYLuzOG
google-site-verification=QMQQ7Qo0pBUfYnoKTP7mDC3fVnHs1bc4tn5AbWxZaLc
google-site-verification=llGv3_7xBF0c-IR6ZkOgdvZ4iZVMMnnlLnr1UktE_rY
linkedin-site-verification=6b303d4c-27fb-45e2-8c0f-bb7f6491f171
SPF v=spf1 mx ip4:216.235.196.0/22 ip4:216.235.200.0/21 ip4:205.139.104.0/22 ip4:206...
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), 346 ms total
PASS
1 redirect(s), 346 ms total
Info::
Single redirect
Got: https://nationalgeographic.org → https://www.nationalgeographic.org/society/ (301)
Info::
WWW normalization redirect

https://nationalgeographic.org

100 ms · HTTP/1.1

301

https://www.nationalgeographic.org/socie...

246 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://nationalgeographic.org301100 msHTTP/1.1nginx
2https://www.nationalgeographic.org/socie...200246 msHTTP/1.1nginx

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 3 URLs
PASS
robots.txt present, sitemap with 3 URLs
Info::
robots.txt is present
Got: 915 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 3 entries
Info::
Sitemap index with 3 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 915 B Sitemaps referenced 1 User-agents CCBot, Claude-Web, GoogleOther-Video, GPTBot, Diffbot, Amazonbot, FacebookBot, GoogleOther, GoogleOther-Image, cohere-ai, omgili, anthropic-ai, Bytespider, ChatGPT-User, PerplexityBot, omgilibot, ImagesiftBot, Applebot-Extended, Google-Extended, dotbot, rogerbot Blocking No — crawling allowed
# Disallow Directives for AI Web Crawlers

User-agent: Amazonbot
Disallow: /

User-agent: anthropic-ai
Disallow: /

User-agent: Bytespider
Disallow: /

User-agent: CCBot
Disallow: /

User-agent: ChatGPT-User
Disallow: /

User-agent: Claude-Web
Disallow: /

User-agent: FacebookBot
Disallow: /

User-agent: Google-Extended
Disallow: /

User-agent: GoogleOther
Disallow: /

User-agent: GoogleOther-Image
Disallow: /

User-agent: GoogleOther-Video
Disallow: /

User-agent: GPTBot
Disallow: /

User-Agent: PerplexityBot
Disallow: /

User-Agent: cohere-ai 
Disallow: /

User-agent: omgili
Disallow: /

User-agent: omgilibot
Disallow: /

User-agent: Diffbot
Disallow: /

User-agent: ImagesiftBot
Disallow: /

User-agent: Applebot-Extended
Disallow: /

User-agent: dotbot
Disallow: /

User-agent: rogerbot
Disallow: /



# Announce Sitemap Locations
Sitemap: https://www.nationalgeographic.org/society/sitemap_index.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 3 entries Valid XML Yes
Child Sitemaps:
A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: non-www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

301https://www.nationalgeographic.org/
200https://nationalgeographic.org/

Preferred variant: non-www

HTTP → HTTPS

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

Consistent

A
HTTP Probe Timing
Total 436 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
9 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
3 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
9 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
436 ms
Total Time Total request time from DNS lookup through full response.
437 ms

Connection waterfall

DNS Lookup 9 ms TCP Connect 3 ms TLS Handshake 9 ms Server Processing 415 ms Content Transfer 0 ms
A
CDN & Delivery
AWS CloudFront (Miss from cloudfront)
PASS
AWS CloudFront (Miss from cloudfront)
Info::
Site is served via AWS CloudFront CDN (edge: SFO53-P2)
Got: x-amz-cf-id: dKHFRC2OVer_z_eN_ivL73WguSG-ND6qI03D4xDVlf7mDmnmn3SlvA==
Info::
CDN cache status: Miss from cloudfront
CDN Detected: AWS CloudFront
Provider AWS CloudFront Cache Status Miss from cloudfront Evidence x-amz-cf-id: dKHFRC2OVer_z_eN_ivL73WguSG-ND6qI03D4xDVlf7mDmnmn3SlvA==
Domain Intelligence
Domain intelligence data not available
INFO
Domain intelligence data not available

RDAP and WHOIS lookup both failed

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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