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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 Sao Paulo, Brazil
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.oecd.org/
200https://oecd.org/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://oecd.org/ https://oecd.org/

Consistent

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

Certificate validity

209
days left
0d 30d 60d 90d+

Recommended actions

  • Add includeSubDomains to the HSTS directive
  • Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
  • 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, 7 ms lookup
PASS
4 A records, 7 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 151.101.3.10, 151.101.67.10, 151.101.131.10, 151.101.195.10
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns1-03.azure-dns.com, ns2-03.azure-dns.net, ns3-03.azure-dns.org, ns4-03.azure-dns.info
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: 7 ms
Got: 7 ms
A151.101.3.10, 151.101.67.10, 151.101.131.10, 151.101.195.10
AAAA
CNAME
NSns1-03.azure-dns.com, ns2-03.azure-dns.net, ns3-03.azure-dns.org, ns4-03.azure-dns.info
MX
10 oecd-org.mail.protection.outlook.com
TXT
SPF v=spf1 ip4:78.41.128.0/22 include:spf.protection.outlook.com -all
d122tnk0lmcb7fw4lzdcvqmw9jdf4qqb
3f6aa5c46d2a4da482b5cb56af96dec1
v/l2fKfgQ+sfAM7ZccgEU41dgW0s412pftzTh7XJzyim4AUo1Wi2WVai364FALz09lut6gJWcS8YLtAj...
adobe-idp-site-verification=fe3732a56cceead6122113a39f9385a693c3367314cdad48789e...
MS=ms12713444
google-site-verification=ywMTwu2FAsfR60NR80rZ3jMdv8Ku-rr1NVnMGvor75k
docusign=26a8c1aa-ac33-45f2-9a60-8d2cd96d4b3d
docusign=4a7be657-e630-44fc-87ba-b68287ac2a3d
cisco-ci-domain-verification=295dc971d1c6be2b5403477737c89eac7ec07601440a1e0855e...
apple-domain-verification=Z7TTmRtTMuoxrVa2
2b065714-2fc1-4d13-b11f-08fbc02c7626
_c4vs31pucag8knkqzie5i90hhnstnug
google-site-verification=SDEWojQdWXNif-TLtOo9erhxfQLpv29GSU6XhHK1r68
openai-domain-verification=dv-TmLkx83mPP4k3cYF7dEcKasX
CAALookup not available with standard resolver
Resolved in 7 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), 210 ms total
PASS
1 redirect(s), 210 ms total
Info::
Single redirect
Got: https://oecd.org → https://www.oecd.org/ (301)
Info::
WWW normalization redirect

https://oecd.org

18 ms · HTTP/1.1

301

https://www.oecd.org/

192 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://oecd.org30118 msHTTP/1.1
2https://www.oecd.org/200192 msHTTP/1.1cloudflare

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 758 URLs
PASS
robots.txt present, sitemap with 758 URLs
Info::
robots.txt is present
Got: 237 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 758 entries
Info::
Sitemap index with 758 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 237 B Sitemaps referenced 1 User-agents *, Twitterbot, Googlebot, Spacecat/1.0 Blocking No — crawling allowed
User-agent: *

Disallow: /content/dam/oecd/

Disallow: /adobe/dynamicmedia/deliver/


User-agent: Twitterbot

Allow: /


User-agent: Googlebot

Allow: /


User-agent: Spacecat/1.0

Allow: /


Sitemap: https://www.oecd.org/sitemap.xml
sitemap.xml 200 OK
Type Sitemap Index URLs 758 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
oecd.org — via Network Solutions, LLC, 31 years, 9 months old, hosted on Fastly
PASS
oecd.org — via Network Solutions, LLC, 31 years, 9 months old, hosted on Fastly
Info::
Domain registered until Dec 12, 2029 (3 years, 8 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: Network Solutions, 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

1247 days

December 12, 2029

SSL certificate

209 days

Issued by DigiCert Inc

Domain age

31 years, 9 months

Registered December 13, 1994

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Fastly

ASN AS54113

151.101.195.10

Registrar

Network Solutions, LLC

Unlocked 4 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 Network Solutions, LLC
Created December 13, 1994 (31 years, 9 months ago)
Expires December 12, 2029 (3 years, 8 months)
Last Updated June 20, 2025
Name Servers ns3-03.azure-dns.org, ns1-03.azure-dns.com, ns2-03.azure-dns.net, ns4-03.azure-dns.info
DNSSEC Not enabled
Hosting
IP Address 151.101.195.10
ASN AS54113 (FASTLY - Fastly, Inc., US)
Provider Fastly
Data source: rdap (0.5s)

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 257 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
6 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.
7 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
257 ms
Total Time Total request time from DNS lookup through full response.
258 ms

Connection waterfall

DNS Lookup 6 ms TCP Connect 1 ms TLS Handshake 7 ms Server Processing 244 ms Content Transfer 0 ms
A
CDN & Delivery
Fastly (MISS)
PASS
Fastly (MISS)
Info::
Site is served via Fastly CDN
Got: x-served-by: cache-gru-sbsp2090022-GRU
Info::
CDN cache status: MISS
CDN Detected: Fastly
Provider Fastly Cache Status MISS Evidence x-served-by: cache-gru-sbsp2090022-GRU
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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