Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DCDN & DeliveryActionNo CDN detectedFIX
Consider using a CDN to improve global delivery speed and reduce origin load.
CIPv6 ReadinessActionNo IPv6 supportREVIEW
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.
Source: Google IPv6 stats
BURL Variantswww/non-www, trailing slash, HTTP→HTTPSREVIEW
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
Consistent
BTLS Certificate Expiry & Recommendations42 days until leaf cert expires — 3 issues to addressREVIEW
Certificate validity
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 Records1 A records, 132 ms lookupPASS
| A | 198.40.30.252 |
| AAAA | — |
| CNAME | — |
| NS | ns2.artic.edu, ns1.artic.edu |
| MX | 1 aspmx.l.google.com 5 alt1.aspmx.l.google.com 5 alt2.aspmx.l.google.com 10 alt4.aspmx.l.google.com 10 alt3.aspmx.l.google.com |
| TXT | docusign=cfeb8af9-0555-4435-abe4-dc16025ed53a SFMC-3oqxQXy1LXM_8Qvnb2jfs5Oh-2P-I6zPK3pod8AW docusign=683284ab-7d1f-4b8e-a0ad-d824dc99e647 SFMC-Gx1tErzInpuqeV2R2Ifp0JG43UhrAMiUCBQxh2k7 google-site-verification=I03CtYg30_XwPerxf8QCMby52T9OWgKDMYpP3LaYFiU SFMC-zp8FzUE6d3_4HwFHrG_wB28UhBpLX9sioLV666BL adobe-idp-site-verification=66bcf486-a977-41c6-bd2b-313cfe821411 logmein-verification-code=e6acd8b2-680a-498c-aed8-afee9caf6da2 MS=51589C6AB309B80076C080E6BA15C2A493178477 SPF v=spf1 include:spf-na.exlibrisgroup.com include:amazonses.com include:_spf.googl... SFMC--FB98djAwIsE1BM6foF329DuuDIlLFgIJ_v-uE0L google-site-verification=38maKNiERwvujIBCIQF2Ou0RUfOoUr1rAUurpvNuqmg airtable-verification=ef78f98e8d4fdff2de2c65048193b7b5 |
| 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), 489 ms totalPASS
https://artic.edu
352 ms · HTTP/1.1
https://www.artic.edu/
137 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://artic.edu | 301 | 352 ms | HTTP/1.1 | Apache |
| 2 | https://www.artic.edu/ | 200 | 137 ms | HTTP/1.1 | cloudflare |
See the visual redirect chain in the HTTP Probe tab →
A+Crawlabilityrobots.txt present, sitemap with 5396 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
User-agent: *
Disallow: /press/exhibition-press-room
Disallow: /press/art-institute-images
Disallow: /authors/57/james-rondeau
Disallow: /artworks/recentlyViewed
Disallow: /artworks/addRecentlyViewed
Disallow: /ajaxData
Disallow: /*/exploreFurther$
A+Domain Intelligenceartic.edu — 32 years, 3 months old, hosted on THE-ART-INST - The Art Institute of Chicago, USPASS
747 days
July 31, 2028
42 days
Issued by Let's Encrypt
32 years, 3 months
Registered June 29, 1994
Status unknown
Protects against DNS spoofing
THE-ART-INST - The Art Institute of Chicago, US
ASN AS18555
198.40.30.252
Registrar unknown