Infrastructure
· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.DURL VariantsActionwww/non-www, trailing slash, HTTP→HTTPSFIX
www / non-www
Inconsistent — duplicate content risk
HTTP → HTTPS
HTTP version does not redirect to HTTPS
DCDN & DeliveryActionNo CDN detectedFIX
Consider using a CDN to improve global delivery speed and reduce origin load.
BRedirect Chain1 redirect(s), 1694 ms totalREVIEW
https://washington.edu
730 ms · HTTP/1.1
https://www.washington.edu/
965 ms · HTTP/1.1 FINAL
| # | URL | Status | Time | Protocol | Server |
|---|---|---|---|---|---|
| 1 | https://washington.edu | 302 | 730 ms | HTTP/1.1 | |
| 2 | https://www.washington.edu/ | 200 | 965 ms | HTTP/1.1 | Apache |
See the visual redirect chain in the HTTP Probe tab →
If permanent, use 301 instead.
302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.
Learn more ▾ ▴
Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).
Source: Google Search Central
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
BCrawlabilityrobots.txt present, no sitemapREVIEW
A sitemap helps search engines discover and index your pages more efficiently.
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
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: /?s=*
Disallow: /search/
Disallow: /graduation/?s=*
No sitemap found
Adding a sitemap helps search engines discover your pages.
BTLS Certificate Expiry & Recommendations84 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
ADNS Records4 A records, 210 ms lookupPASS
| A | 34.168.51.100, 128.208.60.208, 34.82.219.4, 128.208.60.183 |
| AAAA | — |
| CNAME | — |
| NS | hanna.cac.washington.edu, holly.s.uw.edu, marge.cac.washington.edu |
| MX | 100 mxa-00641c01.gslb.pphosted.com 100 mxb-00641c01.gslb.pphosted.com |
| TXT | yahoo-verification-key=febaEICJ1R7EjK8J6uJdgklMp+LFLtpNHd/Il8CZ7IY= docusign=b901bb56-fe09-4f9d-9e30-87402e9197a7 docusign=e3706ae5-29d1-4ecd-b135-9d42971e01b3 SPF v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ?all i4s43bEMav5NFqlp50Jf8mDeG7JfEQk8tc3eL2+Jhf+YljFwBDz9fVStOp0icfcpHybCO0DGhNn7CbgR... 9WzL6CUtGSDvyRlyX3PDhYUG8m/W1G+mgjeohqshzYAWYm9RRb+1/8QMXJjWEAzch5GmhX7fjA4/Rfx2... google-site-verification=FTXGiMcRTGSZM8mNFZ2zLn1wkN9dQGnBcTyojncI1jY |
| 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
A+Domain Intelligencewashington.edu — 40 years, 2 months old, hosted on Google CloudPASS
410 days
July 31, 2027
84 days
Issued by Internet2
40 years, 2 months
Registered September 4, 1986
Status unknown
Protects against DNS spoofing
Google Cloud
ASN AS396982
34.168.51.100
Registrar unknown