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 & Recommendations138 days until leaf cert expires — 4 issues to addressREVIEW
Certificate validity
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
ADNS Records2 A records, 599 ms lookupPASS
| A | 75.2.126.119, 99.83.249.53 |
| AAAA | — |
| CNAME | — |
| NS | ns6.psu.edu, ns4.psu.edu, ns5.psu.edu, ns3.psu.edu |
| MX | 10 psu-edu.mail.protection.outlook.com 100 tr10g04.aset.psu.edu 100 tr16g04.aset.psu.edu 100 tr10g05.aset.psu.edu |
| TXT | sending_domain792143=2070aa685344b45a0e16b8bce1461bd17aa0859124167d7de3045118566... google-site-verification=vHuHM-USVzcbEPvWLaCm1V_cZ0zugtsAcalsjrGJDW4 d365mktkey=eWDZtnamFngyoYoGtT93m4fmRx1Hd9vgjxN8p0GH7xQx atlassian-domain-verification=PGZWFhnYN7FUTwxmJqYQKgatbdTFrfNukF5KDGWa0mWPGi1jy9... box-domain-verification=8b0e76bcd41c2098c561d4a6c76df4242237a5eca52a6f569c84822a... mandrill_verify.-noObquq5CZ6qg-_m3FU1Q d365mktkey=13lvct37oc5tqf3ni84bs0n1t anthropic-domain-verification-cgacwf=TSzA7lZcFeEmmAckrvL87Zm9B brevo-code:59b3a18744d24f960bd78166f34f87c5 yahoo-verification-key=S/JZwwRkx1/dWdZSKSNWT3ChlUALu9mKVpm+o8xe8MU= MS=ms91290392 atlassian-domain-verification=wlBqIAmpBSixcJ83A6a4ZogoXXQeYLSASDgVbyH90fv9HjHgBg... google-site-verification=z679zFdxlqIzQ9cUP8DwgEUoDRfIpdPBRa7mvKsDUl4 miro-verification=c9e30b08749df69f0277296f2a3df11c94685365 google-site-verification=bGc55zZ_HmH81zz6dFkY3g7VWHqhK4gA-LMi0kGB-mA openai-domain-verification=dv-gCYk5agX8JoMzXtkM1XIREdS onetrust-domain-verification=bbbd360682694a43870ba1c775b2d649 SPF v=spf1 include:spf.protection.outlook.com ip4:128.118.0.0/16 ip4:146.186.0.0/16 ... brevo-code:b1414e0a234265a2faa294058248ae06 iContact1375133 atlassian-domain-verification=EIh5JHXyANEGCWCfy9tetFojgihn1AJ8D4e4ZW+Ej+xRymWxNm... adobe-idp-site-verification=947d8d72-3123-4582-ac74-dd9d49d1648b d365mktkey=Xc4xsZLegiS4rik7ebMtYtxf8L0mqzjSbgydiOdjGIkx e2ma-verification=3hkgb b5604d31e98c911293a74154659dd394967fe062e75314a2e7 |
| CAA | Lookup not available with standard resolver |
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.
Slow DNS adds latency to every page load. Consider a faster DNS provider.
DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.
Source: DNS performance benchmarks
ARedirect Chain1 redirect(s), 786 ms totalPASS
https://psu.edu
421 ms · HTTP/1.1
https://www.psu.edu:443/
365 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://psu.edu | 301 | 421 ms | HTTP/1.1 | awselb/2.0 |
| 2 | https://www.psu.edu:443/ | 200 | 365 ms | HTTP/1.1 | Vercel |
See the visual redirect chain in the HTTP Probe tab →
ACrawlabilityno robots.txt, sitemap with 334 URLsPASS
robots.txt is optional but recommended. It tells search engine crawlers which pages to index.
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
No robots.txt found
This is fine for most sites — a missing robots.txt allows all crawling by default.
- https://www.psu.edu/costs-aid/managing-aid/accepting-or-declining-aid
- https://www.psu.edu/admission/undergraduate/contact
- https://www.psu.edu/costs-aid/aid-notification/next-steps-for-students
- https://www.psu.edu/costs-aid/types-of-aid/loans/federal-direct-loans/federal-direct-graduate-plus-loan/how-to-apply-for-a-graduate-plus-loan
- https://www.psu.edu/resources/adult-military-students/admission-requirements
A+Domain Intelligencepsu.edu — 40 years, 4 months old, hosted on AWSPASS
381 days
July 31, 2027
138 days
Issued by Amazon
40 years, 4 months
Registered July 14, 1986
Status unknown
Protects against DNS spoofing
AWS
ASN AS16509
99.83.249.53
Registrar unknown