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https://audubon.org

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
92
GRADE
A
FIX
0
REVIEW
2
PASS
7
INFO
0
Probed from Sao Paulo, Brazil
301 Moved Permanently
Checks
9
7 PASS 2 REVIEW
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.audubon.org/
200https://audubon.org/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://audubon.org/ https://audubon.org/

Consistent

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

Certificate validity

86
days left
0d 30d 60d 90d+

Recommended actions

  • Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
  • 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
1 A records, 12 ms lookup
PASS
1 A records, 12 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 23.185.0.3
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
Has 2 IPv6 (AAAA) record(s)
Got: 2620:12a:8001::3, 2620:12a:8000::3
Info::
6 nameserver(s) configured
Got: ns12.dnsmadeeasy.com, ns15.dnsmadeeasy.com, ns10.dnsmadeeasy.com, ns11.dnsmadeeasy.com, ns14.dnsmadeeasy.com, ns13.dnsmadeeasy.com
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: 12 ms
Got: 12 ms
A23.185.0.3
AAAA2620:12a:8001::3, 2620:12a:8000::3
CNAME
NSns12.dnsmadeeasy.com, ns15.dnsmadeeasy.com, ns10.dnsmadeeasy.com, ns11.dnsmadeeasy.com, ns14.dnsmadeeasy.com, ns13.dnsmadeeasy.com
MX
0 audubon-org.mail.protection.outlook.com
TXT
apple-domain-verification=bOFBJAE9de4ASfiX
8qebf13g2rk3p1l1jqqdlvq5n0
canva-site-verification=SE2K3UIbiWaS-5o31vFGQQ
google-site-verification=OKMWNXlPVYWzFOHgK2iWGs53Lsh_lhOgV0z9x4d9C64
ndm1m4146qhiseftnpsuhcm19k
zapier-domain-verification-challenge=5055196f-1c55-448f-93a5-16f45ee63f56
l6pgva3ngkn8vr6cjj3t73nqu6
atlassian-domain-verification=azYUiKOxosvz0FZ8ACiiagXLK8f9xgGFi/YF9SayAOZe2AVA4a...
google-site-verification=ByF17GrFXWzDYJY9bHTd7AtYYXy7QQVsQlb8R8ySrIQ
2gjpfrk7jkfiikqlp4dvk75k5
ZOOM_verify_qA09HAvCQNSJCgVlzOE8Rw
bq25kli9tib4i8omlre2tv55b3
atlassian-sending-domain-verification=333b27c2-9ac8-48ed-aca9-2fde0d8faee3
google-site-verification=hFDW2NyIxHc6vQOV2wPGK1dMBIf_qCD9UmhaFkEaI24
SPF v=spf1 ip4:207.99.25.28 ip4:66.195.53.164 ip4:74.63.218.226 ip4:216.75.6.200 ip4...
CAALookup not available with standard resolver
Resolved in 12 ms

Multiple A records provide failover if one server goes down.

Why this matters

Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.

Learn more

Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.

Source: SRE practice / DNS architecture

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), 57 ms total
PASS
1 redirect(s), 57 ms total
Info::
Single redirect
Got: https://audubon.org → https://www.audubon.org/ (301)
Info::
WWW normalization redirect

https://audubon.org

28 ms · HTTP/1.1

301

https://www.audubon.org/

28 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://audubon.org30128 msHTTP/1.1Varnish
2https://www.audubon.org/20028 msHTTP/1.1nginx

See the visual redirect chain in the HTTP Probe tab →

A+
IPv6 Readiness
IPv6 reachable (1 ms)
PASS
IPv6 reachable (1 ms)
Info::
IPv6 is configured and reachable at 2620:12a:8001::3, 2620:12a:8000::3
Got: 1 ms connect
IPv6 Ready
AAAA Records 2620:12a:8001::3, 2620:12a:8000::3 Connection Reachable (1 ms)
A+
Crawlability
robots.txt present, sitemap with 47 URLs
PASS
robots.txt present, sitemap with 47 URLs
Info::
robots.txt is present
Got: 2334 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 47 entries
Info::
Sitemap index with 47 child sitemaps
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK
Size 2334 B Sitemaps referenced 0 User-agents * Blocking No — crawling allowed
#
# robots.txt
#
# This file is to prevent the crawling and indexing of certain parts
# of your site by web crawlers and spiders run by sites like Yahoo!
# and Google. By telling these "robots" where not to go on your site,
# you save bandwidth and server resources.
#
# This file will be ignored unless it is at the root of your host:
# Used:    http://example.com/robots.txt
# Ignored: http://example.com/site/robots.txt
#
# For more information about the robots.txt standard, see:
# http://www.robotstxt.org/robotstxt.html

User-agent: *
# CSS, JS, Images
Allow: /core/*.css$
Allow: /core/*.css?
Allow: /core/*.js$
Allow: /core/*.js?
Allow: /core/*.gif
Allow: /core/*.jpg
Allow: /core/*.jpeg
Allow: /core/*.png
Allow: /core/*.svg
Allow: /profiles/*.css$
Allow: /profiles/*.css?
Allow: /profiles/*.js$
Allow: /profiles/*.js?
Allow: /profiles/*.gif
Allow: /profiles/*.jpg
Allow: /profiles/*.jpeg
Allow: /profiles/*.png
Allow: /profiles/*.svg
# Directories
Disallow: /core/
Disallow: /profiles/
# Files
Disallow: /README.md
Disallow: /composer/Metapackage/README.txt
Disallow: /composer/Plugin/ProjectMessage/README.md
Disallow: /composer/Plugin/Scaffold/README.md
Disallow: /composer/Plugin/VendorHardening/README.txt
Disallow: /composer/Template/README.txt
Disallow: /modules/README.txt
Disallow: /sites/README.txt
Disallow: /themes/README.txt
Disallow: /web.config
# Paths (clean URLs)
Disallow: /admin/
Disallow: /comment/reply/
Disallow: /filter/tips
Disallow: /node/add/
Disallow: /search/
Disallow: /user/register
Disallow: /user/password
Disallow: /user/login
Disallow: /user/logout
Disallow: /media/oembed
Disallow: /*/media/oembed
# Paths (no clean URLs)
Disallow: /index.php/admin/
Disallow: /index.php/comment/reply/
Disallow: /index.php/filter/tips
Disallow: /index.php/node/add/
Disallow: /index.php/search/
Disallow: /index.php/user/password
Disallow: /index.php/user/register
Disallow: /index.php/user/login
Disallow: /index.php/user/logout
Disallow: /index.php/media/oembed
Disallow: /index.php/*/media/oembed

# Custom NAS urls
Disallow: /search_results
Disallow: /native-plants/search
Disallow: /node/*/plate
Disallow: /event/*/calendar
Disallow: /taxonomy/term/*/feed
Disallow: /internal/*
Disallow: /es/internal/*
Disallow: /custom_redirect
Disallow: /cron/.env
Disallow: /system/files/styles/*
Disallow: /user/*

sitemap.xml 200 OK
Type Sitemap Index URLs 47 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
audubon.org — via Network Solutions, LLC, 32 years, 1 months old
PASS
audubon.org — via Network Solutions, LLC, 32 years, 1 months old
Info::
Domain registered until Aug 25, 2026 (4 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.
Domain expiry

38 days

August 25, 2026

SSL certificate

86 days

Issued by Let's Encrypt

Domain age

32 years, 1 months

Registered August 26, 1994

DNSSEC

Not enabled

Protects against DNS spoofing

Hosting

Unknown

2620:12a:8001::3

Registrar

Network Solutions, LLC

Unlocked 6 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Renew the domain or enable auto-renewal to prevent accidental expiry
  • Enable DNSSEC to protect visitors from DNS spoofing
  • Enable registrar lock (clientTransferProhibited) to block unauthorized domain transfers
Registrar Network Solutions, LLC
Created August 26, 1994 (32 years, 1 months ago)
Expires August 25, 2026 (4 months)
Last Updated July 3, 2025
Name Servers ns10.dnsmadeeasy.com, ns11.dnsmadeeasy.com, ns12.dnsmadeeasy.com, ns13.dnsmadeeasy.com, ns14.dnsmadeeasy.com, ns15.dnsmadeeasy.com
DNSSEC Not enabled
Hosting
IP Address 2620:12a:8001::3
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 32 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.
2 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.
32 ms
Total Time Total request time from DNS lookup through full response.
32 ms

Connection waterfall

DNS Lookup 6 ms TCP Connect 2 ms TLS Handshake 9 ms Server Processing 15 ms Content Transfer 0 ms
A+
CDN & Delivery
Fastly (HIT, MISS)
PASS
Fastly (HIT, MISS)
Info::
Site is served via Fastly CDN
Got: x-served-by: cache-gru-sbsp2090072-GRU, cache-gru-sbsp2090072-GRU
Info::
CDN cache status: HIT, MISS
CDN Detected: Fastly
Provider Fastly Cache Status HIT, MISS Evidence x-served-by: cache-gru-sbsp2090072-GRU, cache-gru-sbsp2090072-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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