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https://gatech.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
84
GRADE
B
FIX
1
REVIEW
3
PASS
5
INFO
0
Probed from Santa Clara, United States
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.gatech.edu/
200https://gatech.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

301http://gatech.edu/ → https://gatech.edu/

Consistent

B
TLS Certificate Expiry & Recommendations
298 days until leaf cert expires — 4 issues to address
REVIEW

Certificate validity

298
days left
0d 30d 60d 90d+

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
A
DNS Records
1 A records, 649 ms lookup
PASS
1 A records, 649 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 3.214.16.8
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: dns2.gatech.edu, dns1.gatech.edu, dns3.gatech.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
Warning::
DNS resolution is slow (649 ms)
Slow DNS adds latency to every page load. Consider a faster DNS provider.
Got: 649 ms
A3.214.16.8
AAAA—
CNAME—
NSdns2.gatech.edu, dns1.gatech.edu, dns3.gatech.edu
MX
0 gatech-edu.mail.protection.outlook.com
TXT
jamf-site-verification=gAwgJ3Xd0vGmRXC5AtK_2A
docusign=e1e347ac-bf67-4a46-af4b-633507650cd8
openai-domain-verification=dv-QYbNXMWTRie8FAYxkPoFsUI0
apple-domain-verification=5dqZgW9v3jro7kzf
9dLzu0CG1qO+5B82n6k35OPexBrgVoft1ok1lJma7uzEUG95D0GvY9q4p0XdDDnsNj2tGoaJKr3uGtnU...
2o0qkdhgn6h9p695r7phh8d4ok
dropbox-domain-verification=qddqfi7r4j3s
atlassian-domain-verification=1vvfrVSYZDrWsnJoI3HuSIX8HzkNWzV28yLwF9IkC232kkssv5...
MS=ms45592394
ZOOM_verify_WEnAVQIRPeo0hcJisIGkQG
status-page-domain-verification=97wpf9ns99vd
docusign=3a62dae8-1176-4aec-98f5-6b7a1e120359
webexdomainverification.4C675B8AB8B9B136E053AB06FC0A3F65=0ff7987a-38bc-451e-b0ab...
onetrust-domain-verification=5c805546946c4762bfcd39bae58bbe95
MS=ms74949178
flexera-domain-verification-djdodcjyrrqhbbxi
1password-site-verification=EISCRSLWPNDCXE5YAWB2KATZIA
cisco-ci-domain-verification=3b439ac3574a218119fb4d2ae11d9f82d6a0b76ca853754fdf0...
airtable-verification=79969ae4a440c5c240092c823ad833f8
smartsheet-site-validation=eNrpnAJtXF17QgFh4D_ZvdUqX5ar6cCf
adobe-idp-site-verification=b121cd76-89af-4a5f-b94a-9cc865e1116f
SPF v=spf1 include:spf.gatech.edu -all
google-site-verification=YAlClp86z3JJuhJtsl-6-cc2YdAxYeJ5QKgKaHuG2WE
CAALookup not available with standard resolver
Resolved in 649 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.

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

A
Redirect Chain
1 redirect(s), 499 ms total
PASS
1 redirect(s), 499 ms total
Info::
Single redirect
Got: https://gatech.edu → https://www.gatech.edu/ (301)
Info::
WWW normalization redirect

https://gatech.edu

343 ms · HTTP/1.1

301

https://www.gatech.edu/

155 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://gatech.edu301343 msHTTP/1.1Apache/2.4.66 () OpenSSL/1.0.2k-fips
2https://www.gatech.edu/200155 msHTTP/1.1Apache/2.4.62 (Amazon Linux) mod_fcgid/2.3.9

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 2 URLs
PASS
robots.txt present, sitemap with 2 URLs
Info::
robots.txt is present
Got: 2027 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 2 entries
Info::
Sitemap index with 2 child sitemaps
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 Sitemap Index URLs 2 entries Valid XML Yes
Child Sitemaps:
A+
Domain Intelligence
gatech.edu — 40 years, 6 months old, hosted on AWS
PASS
gatech.edu — 40 years, 6 months old, hosted on AWS
Info::
Domain registered until Jul 31, 2026 (3 months remaining)
Info::
Hosting: AWS
Got: AS14618
Domain expiry

45 days

July 31, 2026

SSL certificate

298 days

Issued by Internet2

Domain age

40 years, 6 months

Registered May 8, 1986

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

AWS

ASN AS14618

3.214.16.8

Registrar

Registrar unknown

Lock status unknown 3 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 May 8, 1986 (40 years, 6 months ago)
Expires July 31, 2026 (3 months)
Last Updated September 26, 2025
Name Servers dns2.gatech.edu, dns1.gatech.edu, dns3.gatech.edu
Registrant Georgia Institute of Technology
Hosting
IP Address 3.214.16.8
ASN AS14618 (AMAZON-AES - Amazon.com, Inc., US)
Provider AWS
Data source: whois (0.4s)
A+
HTTP Probe Timing
Total 340 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
69 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
67 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
137 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
340 ms
Total Time Total request time from DNS lookup through full response.
341 ms

Connection waterfall

DNS Lookup 69 ms TCP Connect 67 ms TLS Handshake 137 ms Server Processing 67 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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