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https://uaf.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
79
GRADE
C
FIX
3
REVIEW
3
PASS
3
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
3 PASS 3 REVIEW 3 FIX
D
Redirect Chain
Action
2 redirect(s), 2707 ms total
FIX
2 redirect(s), 2707 ms total
Warning::
2 redirects before reaching final URL
Each redirect adds latency. Try to minimize the chain to 1 hop.
Info::
WWW normalization redirect
Info::
Uses 302 (temporary) redirect
If permanent, use 301 instead.
Got: https://www.uaf.edu/
Warning::
Redirect overhead: 2707 ms total
Got: 2707 ms

https://uaf.edu

828 ms · HTTP/1.1

301

https://www.uaf.edu/

1030 ms · HTTP/1.1

302

https://www.uaf.edu/uaf/

849 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://uaf.edu301828 msHTTP/1.1Apache
2https://www.uaf.edu/3021030 msHTTP/1.1Apache
3https://www.uaf.edu/uaf/200849 msHTTP/1.1Apache

See the visual redirect chain in the HTTP Probe tab →

Each redirect adds latency. Try to minimize the chain to 1 hop.

Why this matters

Redirect chain — each hop adds latency; combine into one redirect where possible.

Source: Google Search Central / web.dev

If permanent, use 301 instead.

Why this matters

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

D
TLS Certificate Expiry & Recommendations
Action
6 days until leaf cert expires — 5 issues to address
FIX

Certificate validity

6
days left
0d 30d 60d 90d+
Renew urgently — under 14 days remaining

Recommended actions

  • Renew certificate — 6 days remaining
  • 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
D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN (document or assets)

Consider using a CDN to improve global delivery speed and reduce origin load.

B
DNS Records
1 A records, 218 ms lookup
REVIEW
1 A records, 218 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 137.229.114.150
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
4 nameserver(s) configured
Got: ns1.uaf.edu, aduans-f.alaska.edu, aduans-a.alaska.edu, ns2.uaf.edu
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::
No SPF record found in TXT records
SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.
Warning::
DNS resolution is slow (218 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 218 ms
A137.229.114.150
AAAA—
CNAME—
NSns1.uaf.edu, aduans-f.alaska.edu, aduans-a.alaska.edu, ns2.uaf.edu
MX
10 seven.alaska.edu
TXT
apple-domain-verification=LEgsruKoS26Vjo5h
CAALookup not available with standard resolver
Resolved in 218 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.

SPF helps prevent email spoofing. Add a TXT record starting with 'v=spf1'.

Why this matters

Without SPF, receiving servers can't validate sending IPs — your domain is easier to spoof in phishing.

Learn more ▾

SPF complements DMARC. Both should be published. SPF records list authorized sending IPs (e.g., `v=spf1 include:_spf.google.com ~all` for Google Workspace). After publishing, verify in Google Postmaster Tools or mxtoolbox.

Source: RFC 7208 (SPF)

Slow DNS adds latency to every page load. Consider a faster DNS provider.

Why this matters

DNS resolution is slow — anycast DNS providers (Cloudflare, Route 53) typically resolve <50ms globally.

Source: DNS performance benchmarks

C
IPv6 Readiness
Action
No IPv6 support
REVIEW
No IPv6 support
Info::
No IPv6 (AAAA) records found
IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.
No IPv6 Support
About 40% of internet users have IPv6. Consider adding AAAA records.

IPv6 support is increasingly important for global accessibility. About 40% of internet users have IPv6 connectivity.

Why this matters

No AAAA records — same impact as 'no IPv6 (AAAA) records'; IPv6-preferring clients pay extra latency falling back to IPv4.

Source: Google IPv6 stats

B
HTTP Probe Timing
Total 1047 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
REVIEW
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
216 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
207 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
418 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
1.05 s
Total Time Total request time from DNS lookup through full response.
1.05 s

Connection waterfall

DNS Lookup 216 ms TCP Connect 207 ms TLS Handshake 418 ms Server Processing 207 ms Content Transfer 0 ms
A+
Crawlability
robots.txt present, sitemap with 50001 URLs
PASS
robots.txt present, sitemap with 50001 URLs
Info::
robots.txt is present
Got: 330 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 50001 entries
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 330 B Sitemaps referenced 0 User-agents ZanranCrawler, Baiduspider, * Blocking No — crawling allowed
User-agent: ZanranCrawler
Disallow: /
User-agent: Baiduspider
Disallow: /
User-agent: *
Disallow: /templates/
Disallow: /ua-templates/
Disallow: /roxen-files/
Disallow: /__internal/
Disallow: /_internal/
Disallow: /__frame/
Disallow: /coursefinder/search-results/
Disallow: /anla/collections/search/resultDetail.xml
Disallow: /hr/
A
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: non-www)
Warning::
HTTP→HTTPS redirect uses 302 instead of 301
Got: 302 temporary redirect Expected: 301 permanent redirect

www / non-www

302https://www.uaf.edu/
200https://uaf.edu/

Preferred variant: non-www

HTTP → HTTPS

302http://uaf.edu/ → https://uaf.edu/

Use a permanent redirect (301 or 308) instead of a temporary one

A+
Domain Intelligence
uaf.edu — 30 years, 7 months old, hosted on ALASKA - University of Alaska, US
PASS
uaf.edu — 30 years, 7 months old, hosted on ALASKA - University of Alaska, US
Info::
Domain registered until Jul 31, 2026 (3 months remaining)
Info::
Hosting: ALASKA - University of Alaska, US
Got: AS7774
Domain expiry

EXPIRED

July 31, 2026

SSL certificate

6 days

Issued by Internet2

Domain age

30 years, 7 months

Registered February 22, 1996

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

ALASKA - University of Alaska, US

ASN AS7774

137.229.114.150

Registrar

Registrar unknown

Lock status unknown 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Domain has EXPIRED — renew immediately to avoid total site outage
  • Renew the TLS certificate or verify auto-renewal is working
Registrar
Created February 22, 1996 (30 years, 7 months ago)
Expires July 31, 2026 (3 months)
Last Updated June 3, 2025
Name Servers ns1.uaf.edu, aduans-a.alaska.edu, ns2.uaf.edu, aduans-f.alaska.edu
Registrant University of Alaska Fairbanks
Hosting
IP Address 137.229.114.150
ASN AS7774 (ALASKA - University of Alaska, US)
Provider ALASKA - University of Alaska, US
Data source: whois (1.2s)
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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