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https://creativecommons.org

Infrastructure

· 17 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
89
GRADE
B
FIX
0
REVIEW
5
PASS
12
INFO
0
Probed from Madrid, Spain
200 OK
Checks
17
12 PASS 5 REVIEW
C
DNSSEC
Action
Zone signed but parent has no DS record
REVIEW
Zone signed but parent has no DS record
Warning::
DNSSEC keys published but parent zone has no DS record
The zone publishes DNSKEY records but the registry has not been updated with the corresponding DS record. From a validating resolver's perspective the domain is unsigned. Submit the DS record to your registrar to complete the delegation.
B
CAA Records
No CAA records (any CA may issue certificates)
REVIEW
No CAA records (any CA may issue certificates)
Info::
No CAA records published
Without CAA records, any publicly-trusted CA can issue certificates for this domain. Adding a CAA record (`yourdomain. IN CAA 0 issue "letsencrypt.org"`) restricts issuance to CAs you authorize. Required by CAB Forum baseline since 2017; the default of 'any CA' is widely supported but is the broader attack surface for issuance fraud.
C
Reverse DNS
Action
0/4 IPs match cert SAN
REVIEW
0/4 IPs match cert SAN
Info::
PTR lookup failed for 104.20.6.134: lookup 104.20.6.134: no such host
No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
Info::
PTR lookup failed for 104.20.5.134: lookup 104.20.5.134: no such host
No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
Info::
PTR lookup failed for 2606:4700:10::6814:686: lookup 2606:4700:10::6814:686: no such host
No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
Info::
PTR lookup failed for 2606:4700:10::6814:586: lookup 2606:4700:10::6814:586: no such host
No reverse DNS record set for this IP. Common on bare cloud-VM IPs without provider-side PTR; not a security issue.
B
TLS Certificate Expiry & Recommendations
73 days until leaf cert expires — 3 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 DNSSEC on your domain for DNS spoofing protection
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
B
Operational Status Page
No status page link detected
REVIEW
No status page link detected
Info::
No operational status page link detected
Status pages communicate planned maintenance and incidents to users -- a hallmark of operationally-mature services. Most SaaS teams publish one via Atlassian Statuspage, Instatus, BetterUptime, or a self-hosted Cachet. Smaller sites legitimately don't need one; flagged as Info, not a failure.
A+
DNS Records
2 A records, 29 ms lookup
PASS
2 A records, 29 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 104.20.6.134, 104.20.5.134
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2606:4700:10::6814:686, 2606:4700:10::6814:586
Info::
2 nameserver(s) configured
Got: isaac.ns.cloudflare.com, fiona.ns.cloudflare.com
Info::
8 mail exchanger(s) configured
Info::
SPF record present in TXT
Info::
DNS resolution time: 29 ms
Got: 29 ms
A104.20.6.134, 104.20.5.134
AAAA2606:4700:10::6814:686, 2606:4700:10::6814:586
CNAME—
NSisaac.ns.cloudflare.com, fiona.ns.cloudflare.com
MX
1 aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com
10 alt3.aspmx.l.google.com
50 aspmx2.googlemail.com
60 aspmx3.googlemail.com
70 aspmx4.googlemail.com
80 aspmx5.googlemail.com
TXT
MS=ms27657674
SPF v=spf1 include:_spf.google.com include:sendgrid.net ~all
blitz=mu-fbea1d1e-91b715ef-04876bbd-270e0140
CAALookup not available with standard resolver
Resolved in 29 ms
A+
Subdomain Takeover
No subdomain takeover risk detected
PASS
No subdomain takeover risk detected
Info::
No CNAME record present
A+
Multi-Resolver DNS Speed
Mean 16ms across 3 resolvers (spread 26ms)
PASS
Mean 16ms across 3 resolvers (spread 26ms)
Info::
Quad9: 2ms
Got: 2ms via 9.9.9.9:53
Info::
Cloudflare: 19ms
Got: 19ms via 1.1.1.1:53
Info::
Google: 28ms
Got: 28ms via 8.8.8.8:53
A+
Redirect Chain
No redirects — direct access
PASS
No redirects — direct access
Info::
No redirects — direct access
Got: https://creativecommons.org

https://creativecommons.org

112 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://creativecommons.org200112 msHTTP/1.1cloudflare
A+
IPv6 Readiness
IPv6 reachable (17 ms)
PASS
IPv6 reachable (17 ms)
Info::
IPv6 is configured and reachable at 2606:4700:10::6814:686, 2606:4700:10::6814:586
Got: 17 ms connect
IPv6 Ready
AAAA Records 2606:4700:10::6814:686, 2606:4700:10::6814:586 Connection Reachable (17 ms)
A+
Crawlability
robots.txt present, sitemap with 18 URLs
PASS
robots.txt present, sitemap with 18 URLs
Info::
robots.txt is present
Got: 177 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 18 entries
Info::
Sitemap index with 18 child sitemaps
Info::
robots.txt references sitemap
robots.txt 200 OK
Size 177 B Sitemaps referenced 1 User-agents * Blocking No — crawling allowed
# START YOAST BLOCK
# ---------------------------
User-agent: *
Disallow:

Sitemap: https://creativecommons.org/sitemap_index.xml
# ---------------------------
# END YOAST BLOCK
sitemap.xml 200 OK
Type Sitemap Index URLs 18 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)
Warning::
HTTP→HTTPS redirect uses 302 instead of 301
Got: 302 temporary redirect Expected: 301 permanent redirect

www / non-www

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

Preferred variant: non-www

HTTP → HTTPS

302http://creativecommons.org/ → https://creativecommons.org/

Use 301 (permanent) instead of 302 (temporary)

A+
Domain Intelligence
creativecommons.org — via Gandi SAS, 25 years, 10 months old
PASS
creativecommons.org — via Gandi SAS, 25 years, 10 months old
Info::
Domain registered until Jan 15, 2028 (1 years, 6 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: Gandi SAS
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

542 days

January 15, 2028

SSL certificate

73 days

Issued by Google Trust Services

Domain age

25 years, 10 months

Registered January 15, 2001

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2606:4700:10::6814:686

Registrar

Gandi SAS

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 Gandi SAS
Created January 15, 2001 (25 years, 10 months ago)
Expires January 15, 2028 (1 years, 6 months)
Last Updated January 11, 2026
Name Servers fiona.ns.cloudflare.com, isaac.ns.cloudflare.com
DNSSEC Not enabled
Hosting
IP Address 2606:4700:10::6814:686
Data source: rdap (0.4s)

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

Connection waterfall

DNS Lookup 29 ms TCP Connect 17 ms TLS Handshake 23 ms Server Processing 28 ms Content Transfer 1 ms
A+
CDN & Delivery
Cloudflare (HIT)
PASS
Cloudflare (HIT)
Info::
Site is served via Cloudflare CDN (edge: CDG)
Got: cf-ray: a1e211480d8ed0a2-CDG
Info::
CDN cache status: HIT
CDN Detected: Cloudflare
Provider Cloudflare Cache Status HIT Evidence cf-ray: a1e211480d8ed0a2-CDG
A+
CDN Cache Observability
Cache state: HIT
PASS
Cache state: HIT
Info::
CDN cache state observable via 2 header(s)
Got: age=2683, cf-cache-status=HIT
A+
Health Check Endpoint
Health endpoint at https://creativecommons.org/health (HTTP 200)
PASS
Health endpoint at https://creativecommons.org/health (HTTP 200)
Info::
Public health endpoint at https://creativecommons.org/health
Got: https://creativecommons.org/health
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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