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Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
89
GRADE
B
FIX
0
REVIEW
3
PASS
6
INFO
0
Probed from Santa Clara, United States
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
Crawlability
no robots.txt, no sitemap
REVIEW
no robots.txt, no sitemap
Info::
No robots.txt found
robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
Info::
No sitemap.xml found
A sitemap helps search engines discover and index your pages more efficiently.

robots.txt is optional but recommended. It tells search engine crawlers which pages to index.

Why this matters

No robots.txt — crawlers fetch /robots.txt and get 404; not breaking but means default crawl behavior with no directives or sitemap reference.

Learn more

A minimal robots.txt with `User-agent: * / Allow: / / Sitemap: https://example.com/sitemap.xml` covers the basics. Without it, crawlers behave fine but lose the sitemap signal and can't be selectively blocked from crawl-traps.

Source: robotstxt.org

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

robots.txt No robots.txt found

No robots.txt found

This is fine for most sites — a missing robots.txt allows all crawling by default.

sitemap.xml No sitemap found

No sitemap found

Adding a sitemap helps search engines discover your pages.

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

Certificate validity

320
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, 24 ms lookup
PASS
4 A records, 24 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 13.249.74.48, 13.249.74.97, 13.249.74.100, 13.249.74.86
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-1227.awsdns-25.org, ns-139.awsdns-17.com, ns-1580.awsdns-05.co.uk, ns-769.awsdns-32.net
Info::
2 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: 24 ms
Got: 24 ms
A13.249.74.48, 13.249.74.97, 13.249.74.100, 13.249.74.86
AAAA
CNAME
NSns-1227.awsdns-25.org, ns-139.awsdns-17.com, ns-1580.awsdns-05.co.uk, ns-769.awsdns-32.net
MX
10 mxa-0032f701.gslb.pphosted.com
10 mxb-0032f701.gslb.pphosted.com
TXT
MS=ms72521120
Token: SFMC-48BHHFc3__TGFOIlUzHwZNVsAvJyXfq9Syls-gYl
ZOOM_verify_k_dnAddbSziOpsMEkmXiLQ
atlassian-domain-verification=9lkPCUXoZo9/uK7odGq6udvvCzWRQIIdJ14UCe0W4WOLmRsHYY...
atlassian-domain-verification=SOB5ZdyvwZb3NLiO6urLakx6J8pgXMVNbxzNLZLSvqKSSwQEsK...
atlassian-domain-verification=lX5Q/Ll/nrj/C4e6cySytCHKdx1H80MurTN7TPd8TMQVY4o9uz...
brave-ledger-verification=dffd0dcc07a6b671c80a0755b0370c40d229b926b5afb95b8e660c...
dell-technologies-domain-verification=npr.org_3f6b9445-a976-4474-830b-a246552bcd...
docker-verification=0d5c5383-6c1d-4a60-add5-62a69e08c89c
docusign=d1000a20-f346-4e9d-81d7-5c0b6c470c9b
e2ma-verification=3smcb
e2ma-verification=9g1fb
e2ma-verification=ah1fb
e2ma-verification=bv1fb
e2ma-verification=d19fb
e2ma-verification=dv1fb
e2ma-verification=ssagb
e2ma-verification=zt1fb
facebook-domain-verification=vffcg5c4iyq78of04zvynnxb1ledtk
google-site-verification=GhCa0MtDUMedDVVtFoDlMUCMRtcagJcLFhNAqaePPQo
google-site-verification=ZZkj28LUEc29MPzvM7j02U8Qkg3t8CH3JlDO1cnWbdA
intersight=2d6b360329c8f7aca93c0f56037a7d8725e68324554e462abb4f5830ea828310
lucidlink-verification=PBFDTWTMX79GYV1PPBAN5P92SC
lucidlink-verification=RNJ13EA4S94GPXG4KQ65WFW00W
miro-verification=a8d2cf7f81ffcb34f4a909a74956170e23a969cd
stripe-verification=E0F516ADAE7EE0E0407C68E60E87A2E95306A5239F48BD9A102237AB9BCE...
stripe-verification=f163e5dc5b397fea4a815142393ae096a34704dfce3888cf910a800ea33f...
tollbit-domain-verification=6704e51d63e08bdc808332677183132f9cd8ba2185c40c102d67...
tollbit-domain-verification=b382b8a9ab8071b8854c2a7b73773ea7017b866daa54db7747ac...
SPF v=spf1 include:spf-0032f701.pphosted.com include:spf.protection.outlook.com incl...
CAALookup not available with standard resolver
Resolved in 24 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
0 redirect(s), 16 ms total
PASS
0 redirect(s), 16 ms total

https://npr.org

16 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://npr.org30116 msHTTP/1.1AmazonS3
A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

https://www.npr.org/
200https://npr.org/

HTTP → HTTPS

301http://npr.org/ https://npr.org/

Consistent

A+
Domain Intelligence
npr.org — via MarkMonitor Inc., 32 years, 9 months old, hosted on AWS
PASS
npr.org — via MarkMonitor Inc., 32 years, 9 months old, hosted on AWS
Info::
Domain registered until Dec 12, 2027 (1 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: MarkMonitor 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.
Info::
Hosting: AWS
Got: AS16509
Domain expiry

518 days

December 12, 2027

SSL certificate

320 days

Issued by Amazon

Domain age

32 years, 9 months

Registered December 13, 1993

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

AWS

ASN AS16509

13.249.74.97

Registrar

MarkMonitor Inc.

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 MarkMonitor Inc.
Created December 13, 1993 (32 years, 9 months ago)
Expires December 12, 2027 (1 years, 8 months)
Last Updated August 25, 2025
Name Servers ns-1227.awsdns-25.org, ns-139.awsdns-17.com, ns-1580.awsdns-05.co.uk, ns-769.awsdns-32.net
DNSSEC Not enabled
Hosting
IP Address 13.249.74.97
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Provider AWS
Data source: rdap (0.2s)

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

Connection waterfall

DNS Lookup 7 ms TCP Connect 3 ms TLS Handshake 7 ms Server Processing 6 ms Content Transfer 0 ms
A+
CDN & Delivery
AWS CloudFront (Hit from cloudfront)
PASS
AWS CloudFront (Hit from cloudfront)
Info::
Site is served via AWS CloudFront CDN (edge: SFO53-P8)
Got: x-amz-cf-id: JgW2qWxB9vPYVCVcPDFZWvgXzrGfKxjacgeUHZqPEjdc2jofx3VSOw==
Info::
CDN cache status: Hit from cloudfront
CDN Detected: AWS CloudFront
Provider AWS CloudFront Cache Status Hit from cloudfront Evidence x-amz-cf-id: JgW2qWxB9vPYVCVcPDFZWvgXzrGfKxjacgeUHZqPEjdc2jofx3VSOw==
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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