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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
1
REVIEW
3
PASS
5
INFO
0
Probed from Santa Clara, United States
301 Moved Permanently
Checks
9
5 PASS 3 REVIEW 1 FIX
D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

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
170 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

170
days left
0d 30d 60d 90d+

Recommended actions

  • Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
  • 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
2 A records, 156 ms lookup
PASS
2 A records, 156 ms lookup
Info::
Resolves to 2 IPv4 address(es)
Got: 34.195.76.65, 54.209.39.187
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns-1029.awsdns-00.org, ns-1701.awsdns-20.co.uk, ns-487.awsdns-60.com, ns-887.awsdns-46.net
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: 156 ms
Got: 156 ms
A34.195.76.65, 54.209.39.187
AAAA
CNAME
NSns-1029.awsdns-00.org, ns-1701.awsdns-20.co.uk, ns-487.awsdns-60.com, ns-887.awsdns-46.net
MX
10 discovery-com.mail.protection.outlook.com
TXT
+cZoNJlEdITO/FEf/3QoKhZHbeMUwHHrEuA/4NklVDsi+CR1oEsPlTOQ2USM8kq2ecFlVjS7ZEP5VIRo...
0ed1fe018af97b0281310c41399317a3b318219bae
1zc4cr50d51xyh1xtg07dj163gn5wg0v
6rv4ky2b39mr6mm45wn9pzsvfn48288w
8Llcqzr/o7jO9rbppa0jdZe2ESPEWbH6Q9UKiwJlb14=
MS=ms36845212
MS=ms70384928
XM630dvLKEbJzSzSFp2xOWE0FVedH5bnkO+WDL1cUgE=
ZzgNfbnyO1SNw9vM1XYgFFXrGaEEKnFUpLYhDM2n0TU=
_blddjlumu02a1o83g7xaro5vqc9cl0u
_globalsign-domain-verification=L-XV3D4OEYOaUhAoxEQIZQOR7lgafdH_601-AJY76v
adobe-idp-site-verification=30a83e41982349d4ad07b4452032d42b2e1ae2e6294336e3b56e...
adobe-sign-verification=55a65e89d141717e30e740789b947d2f
amazonses:IFkO1GF1OEoaGJsWKoEFq27ohjaVdzIQTUT987u1/kk=
amazonses:ibBFIq81Kxq5T1WsDi6cD3SIF5F6NcOw1bz9cs28dng=
apple-domain-verification=B65wRAxZG0SRwTTC
apple-domain-verification=s2cWlvYJEavwQqC3
atlassian-domain-verification=joqe6L8dNi+aisGbB1XHQa0pDc53V2l0GQQRUtLEcr2997x0+r...
atlassian-sending-domain-verification=5435b926-8647-4fed-84aa-3351a675cb14
autodesk-domain-verification=ym5EYdpGBiwdsykmwdLG
canva-site-verification=Sk0tp_3gWeq5TfKhv1fYOw
cisco-ci-domain-verification=5cbdf6b96fc2179e607427db03aa7f2986e9ee7a4f936528e61...
d18nsta7prg5yw.cloudfront.net
d2ucehxhtik1wi.cloudfront.net
docker-verification=5dd105be-3b0d-4d78-b71d-bc3bed7aa08d
docusign=54144bba-6f1d-40c3-837f-8187fa31e58d
docusign=efcdaa22-c105-409a-a6cd-6b8a26b0e10c
dropbox-domain-verification=dunk3u3d5v9u
facebook-domain-verification=x6n1evurloz8vds9d6jxtjdaa8byug
flexera-domain-verification-ggdnjkzkxfxexvbs
globalsign-domain-verification=AC3ECAE7585C62144BC5818B6C544F9D
google-site-verification=3DKdob3tZjiAUJgelZ4J3FIScpXHm0HdrFZu-BSrDdk
google-site-verification=7J1nFROGNl6AvL9ZtJwvHNyBdfFSXQtG98BzbhqO6JM
google-site-verification=9FDJi7bDcrcbXxE1ipLCIC7kPA4LI-mTmnw5ZyB7wHI
google-site-verification=HsmtjtMf4nm1c_2lgQJG_8OJDcLCBmQW_NYZ-Rsz2yc
google-site-verification=QRLNPD2x6gJpXNlyzE1CmSAQgMcYGcwdE6MTUUlghHE
google-site-verification=ba_1j4qNCApR16lCfInXV0vfPHpWVIbar62rTPT0lrM
google-site-verification=q8S4dYAtVpt6uUfaiPbtPyFjA2u2xKqBJU-HnQzXmMs
intersight=3eed01f1c0a0298999a24f5524196023d6685681853a25e41f16b4b1589152a0
lucid-verification=buX5hl#V8fUHRs%c
lucidlink-verification=W481Z85DPY1PCGX05VP44SJBWW
lucidlink-verification=WVETECAHN0ST2G1QZ78P6F8AVM
miro-verification=1e01f8da769be1241fceefd9abf2c317dcd68323
mongodb-site-verification=LEN6UD3xmzX1D2p8py6V8mYOIQXsJBlK
mongodb-site-verification=RsxPABkPHiD1b91sl269f57Vh0w2vkaT
onetrust-domain-verification=cc826873d78845889ada9335c8836a8a
postman-domain-verification=10d52f237bcec58347f02e63a8363c4bc8459e741a18387f99e6...
prowly-verification=37a5b6539ab07a0e45f55a0254ef9bbc88e1ae239f90cea437258514cac5...
smartsheet-site-validation=6p4IocZ0Et_YqWi1W9528MJcZHY22h2t
spf2.0/pra
v=msv1 t=6911AFCD-8577-4DCA-A486-857FE32804AB
SPF v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:_spf.createsend....
CAALookup not available with standard resolver
Resolved in 156 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), 360 ms total
PASS
1 redirect(s), 360 ms total
Info::
Single redirect
Got: https://discovery.com → https://www.discovery.com/?aid=223833&cid=5624825&crid=273056967&event=start (301)
Info::
WWW normalization redirect

https://discovery.com

306 ms · HTTP/1.1

301

https://www.discovery.com/?aid=223833&ci...

54 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://discovery.com301306 msHTTP/1.1ATS
2https://www.discovery.com/?aid=223833&ci...40354 msHTTP/1.1AkamaiGHost

See the visual redirect chain in the HTTP Probe tab →

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

403https://www.discovery.com/
200https://discovery.com/

HTTP → HTTPS

301http://discovery.com/ https://www.discovery.com/?aid=347282&cid=5600377&crid=268271293&event=midpoint

Consistent

A+
Domain Intelligence
discovery.com — via Nom-iq Ltd. dba COM LAUDE, 33 years, 5 months old, hosted on AWS
PASS
discovery.com — via Nom-iq Ltd. dba COM LAUDE, 33 years, 5 months old, hosted on AWS
Info::
Domain registered until Apr 21, 2027 (1 years 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: Nom-iq Ltd. dba COM LAUDE
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: AS14618
Domain expiry

309 days

April 21, 2027

SSL certificate

170 days

Issued by Amazon

Domain age

33 years, 5 months

Registered April 20, 1993

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

AWS

ASN AS14618

34.195.76.65

Registrar

Nom-iq Ltd. dba COM LAUDE

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 Nom-iq Ltd. dba COM LAUDE
Created April 20, 1993 (33 years, 5 months ago)
Expires April 21, 2027 (1 years)
Last Updated February 6, 2026
Name Servers ns-1029.awsdns-00.org, ns-1701.awsdns-20.co.uk, ns-487.awsdns-60.com, ns-887.awsdns-46.net
DNSSEC Not enabled
Hosting
IP Address 34.195.76.65
ASN AS14618 (AMAZON-AES - 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 299 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
30 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
66 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
134 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
299 ms
Total Time Total request time from DNS lookup through full response.
300 ms

Connection waterfall

DNS Lookup 30 ms TCP Connect 66 ms TLS Handshake 134 ms Server Processing 69 ms Content Transfer 0 ms
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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