Skip to content
https://iastate.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
85
GRADE
B
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from New York, United Stated
301 Moved Permanently
Checks
9
5 PASS 3 REVIEW 1 FIX
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 detected

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

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
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
REVIEW
www/non-www, trailing slash, HTTP→HTTPS
Critical::
Both www and non-www versions serve content
Got: Both variants return 200 Expected: One variant 301-redirects to the other
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.iastate.edu/
200https://iastate.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://iastate.edu/ → https://www.iastate.edu/

Consistent

B
TLS Certificate Expiry & Recommendations
69 days until leaf cert expires — 3 issues to address
REVIEW

Certificate validity

69
days left
0d 30d 60d 90d+

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 Records
1 A records, 31 ms lookup
PASS
1 A records, 31 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 52.252.224.122
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
No IPv6 (AAAA) records
Info::
3 nameserver(s) configured
Got: dns-1.iastate.edu, dns-2.iastate.edu, dns-3.iastate.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::
SPF record present in TXT
Info::
DNS resolution time: 31 ms
Got: 31 ms
A52.252.224.122
AAAA—
CNAME—
NSdns-1.iastate.edu, dns-2.iastate.edu, dns-3.iastate.edu
MX
0 iastate-edu.mail.protection.outlook.com
TXT
klaviyo-site-verification=VAM9gh
apple-domain-verification=m0eUWF9OfbJCnGVv
docusign=76ab78b2-fc1e-4144-8404-8462eefa6514
docusign=d3b48e04-f1f4-4f94-ba9e-b69032d5ba4b
jamf-site-verification=JBa8MvmkXwM1p74LYct6DQ
openai-domain-verification=dv-rJephbSSsokLS4oplDBL3yDL
google-site-verification=6GWAHA6X4UCqNsphgI8xfrBUrArNgJvsrdG5jgNWPRc
ciscocidomainverification=1b366b292bbd98d8666264d9c23f5ddb79352f3bdfa7bb18384855...
atlassian-domain-verification=qSm/pkSxE1d3XvivSerEmjcwIA7W967hCKSglYOFw1eRZmuHIV...
SPF v=spf1 a:mailout-1.nat.iastate.edu a:mailout-2.nat.iastate.edu ip4:69.25.199.32/...
CAALookup not available with standard resolver
Resolved in 31 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.

A
Redirect Chain
1 redirect(s), 286 ms total
PASS
1 redirect(s), 286 ms total
Info::
Single redirect
Got: https://iastate.edu → https://www.iastate.edu/ (301)
Info::
WWW normalization redirect

https://iastate.edu

120 ms · HTTP/1.1

301

https://www.iastate.edu/

166 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://iastate.edu301120 msHTTP/1.1Microsoft-Azure-Application-Gateway/v2
2https://www.iastate.edu/200166 msHTTP/1.1Apache/2.4.58 (Ubuntu)

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 218 URLs
PASS
robots.txt present, sitemap with 218 URLs
Info::
robots.txt is present
Got: 2027 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 218 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 2027 B Sitemaps referenced 0 User-agents * Blocking No — crawling allowed
#
# 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
sitemap.xml 200 OK
Type URL Set URLs 218 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
iastate.edu — 39 years, 4 months old, hosted on Microsoft Azure
PASS
iastate.edu — 39 years, 4 months old, hosted on Microsoft Azure
Info::
Domain registered until Jul 31, 2027 (1 years, 3 months remaining)
Info::
Hosting: Microsoft Azure
Got: AS8075
Domain expiry

410 days

July 31, 2027

SSL certificate

69 days

Issued by Internet2

Domain age

39 years, 4 months

Registered June 22, 1987

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Microsoft Azure

ASN AS8075

52.252.224.122

Registrar

Registrar unknown

Lock status unknown 3 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Registrar
Created June 22, 1987 (39 years, 4 months ago)
Expires July 31, 2027 (1 years, 3 months)
Last Updated March 18, 2026
Name Servers dns-1.iastate.edu, dns-2.iastate.edu, dns-3.iastate.edu
Registrant Iowa State University of Science and Technology
Hosting
IP Address 52.252.224.122
ASN AS8075 (MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US)
Provider Microsoft Azure
Data source: whois (0.3s)
A+
HTTP Probe Timing
Total 125 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
29 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
36 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
31 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
125 ms
Total Time Total request time from DNS lookup through full response.
125 ms

Connection waterfall

DNS Lookup 29 ms TCP Connect 36 ms TLS Handshake 31 ms Server Processing 29 ms Content Transfer 0 ms
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback