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https://pdx.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 Madrid, Spain
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.pdx.edu/
200https://pdx.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://pdx.edu/ → https://pdx.edu/

Consistent

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

Certificate validity

41
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, 56 ms lookup
PASS
1 A records, 56 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 131.252.110.30
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: ns-cloud-e4.googledomains.com, ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com
Info::
5 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: 56 ms
Got: 56 ms
A131.252.110.30
AAAA—
CNAME—
NSns-cloud-e4.googledomains.com, ns-cloud-e1.googledomains.com, ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com
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
facebook-domain-verification=gu4qitl0138472x8ucyy6r19dfuqu1
Foxit-domain-verification=3719a2b3e70ee2667a042b8467c457cc
apple-domain-verification=Uc0zl02SR4UgPzYd
notion-domain-verification=B1uG7JQTYz61UVtEnakxS79q93Gxmx4S7PRmHLkJDU5
amazon-business-verification=a61bb370b60c8886857f20a5cf755dd67d223fa6405e543da70...
atlassian-domain-verification=TJGiEmJeuMqpiaiKrIdXqul8Oy3Jz2QPvw3wn61Ukiq+1u9czm...
_globalsign-domain-verification=YA-c9NEtQPvcvCMixrALwPoItnv2gSSWZuUCMpy9tO
SPF v=spf1 ip4:131.252.0.0/16 ip4:204.71.134.225 ip4:69.63.150.0/24 ip4:69.63.151.0/...
google-site-verification=HN01fRB2ZX7byezy-Tc2Ao7IZnrb3LTuIqxu0n0VHl8
google-site-verification=5qcXTconUJUVE8zsKAjuabe1sjRO1lNWL4S1oEYc-BI
adobe-idp-site-verification=3698cee93347f397a70e6db50faf97736dfbf646258a52c35236...
e2ma-verification=2a3ab
ibmid=1bb1545f-a8c0-4358-b531-2c461f02a552
amazonses:HdV+lbv+2U2CBleX19gwXxat8y52iYgDX4BQXUaAHuE=
CAALookup not available with standard resolver
Resolved in 56 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), 532 ms total
PASS
1 redirect(s), 532 ms total
Info::
Single redirect
Got: https://pdx.edu → https://www.pdx.edu/ (301)
Info::
WWW normalization redirect
Info::
Redirect overhead: 532 ms total
Got: 532 ms

https://pdx.edu

493 ms · HTTP/1.1

301

https://www.pdx.edu/

39 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://pdx.edu301493 msHTTP/1.1Apache
2https://www.pdx.edu/20039 msHTTP/1.1Apache/2.4.66 (Amazon Linux) OpenSSL/3.5.5

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 189 URLs
PASS
robots.txt present, sitemap with 189 URLs
Info::
robots.txt is present
Got: 2121 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 189 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 2121 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.txt

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 189 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
pdx.edu — 39 years, 7 months old, hosted on PDXNET - Portland State University, US
PASS
pdx.edu — 39 years, 7 months old, hosted on PDXNET - Portland State University, US
Info::
Domain registered until Jul 31, 2026 (3 months remaining)
Info::
Hosting: PDXNET - Portland State University, US
Got: AS6366
Domain expiry

14 days

July 31, 2026

SSL certificate

41 days

Issued by Let's Encrypt

Domain age

39 years, 7 months

Registered April 15, 1987

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

PDXNET - Portland State University, US

ASN AS6366

131.252.110.30

Registrar

Registrar unknown

Lock status unknown 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Renew the domain or enable auto-renewal to prevent accidental expiry
Registrar
Created April 15, 1987 (39 years, 7 months ago)
Expires July 31, 2026 (3 months)
Last Updated June 3, 2025
Name Servers ns-cloud-e2.googledomains.com, ns-cloud-e3.googledomains.com, ns-cloud-e4.googledomains.com, ns-cloud-e1.googledomains.com
Registrant Portland State University
Hosting
IP Address 131.252.110.30
ASN AS6366 (PDXNET - Portland State University, US)
Provider PDXNET - Portland State University, US
Data source: whois (1.0s)
A
HTTP Probe Timing
Total 531 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
26 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
167 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
171 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
532 ms
Total Time Total request time from DNS lookup through full response.
532 ms

Connection waterfall

DNS Lookup 26 ms TCP Connect 167 ms TLS Handshake 171 ms Server Processing 168 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.

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