Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Consistent
BTLS Certificate Expiry & Recommendations86 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
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 Records1 A records, 12 ms lookupPASS
| A | 23.185.0.3 |
| AAAA | 2620:12a:8001::3, 2620:12a:8000::3 |
| CNAME | — |
| NS | ns12.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... |
| CAA | Lookup not available with standard resolver |
Multiple A records provide failover if one server goes down.
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.
Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.
ARedirect Chain1 redirect(s), 57 ms totalPASS
https://audubon.org
28 ms · HTTP/1.1
https://www.audubon.org/
28 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://audubon.org | 301 | 28 ms | HTTP/1.1 | Varnish |
| 2 | https://www.audubon.org/ | 200 | 28 ms | HTTP/1.1 | nginx |
See the visual redirect chain in the HTTP Probe tab →
A+IPv6 ReadinessIPv6 reachable (1 ms)PASS
A+Crawlabilityrobots.txt present, sitemap with 47 URLsPASS
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.
robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.
Source: sitemaps.org
#
# 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/*
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
- https://www.audubon.org/sitemap.xml?page...
A+Domain Intelligenceaudubon.org — via Network Solutions, LLC, 32 years, 1 months oldPASS
38 days
August 25, 2026
86 days
Issued by Let's Encrypt
32 years, 1 months
Registered August 26, 1994
Not enabled
Protects against DNS spoofing
Unknown
2620:12a:8001::3
Network Solutions, LLC
Expiry timeline
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
DNSSEC protects against DNS spoofing attacks. While not required, enabling DNSSEC adds an additional layer of security. Contact your DNS provider to enable it.
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.
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