Skip to content
https://tufts.edu

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
86
GRADE
B
FIX
0
REVIEW
3
PASS
6
INFO
0
Probed from Madrid, Spain
301 Moved Permanently
Checks
9
6 PASS 3 REVIEW
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.tufts.edu/
200https://tufts.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

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

Consistent

C
TLS Certificate Expiry & Recommendations
Action
25 days until leaf cert expires — 6 issues to address
REVIEW

Certificate validity

25
days left
0d 30d 60d 90d+
Renew soon — under 30 days remaining

Recommended actions

  • Renew certificate — 25 days remaining
  • Prefer TLS 1.3 — TLS 1.2 is acceptable but TLS 1.3 removes RSA key exchange and improves latency
  • Extend HSTS max-age to at least 31536000 (1 year) to meet the preload list criteria
  • Add the preload directive and submit to hstspreload.org once max-age + includeSubDomains are in place
  • 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
4 A records, 66 ms lookup
PASS
4 A records, 66 ms lookup
Info::
Resolves to 4 IPv4 address(es)
Got: 151.101.130.133, 151.101.194.133, 151.101.2.133, 151.101.66.133
Info::
No IPv6 (AAAA) records
Info::
8 nameserver(s) configured
Got: a1-196.akam.net, dns-auth-prod-02.it.tufts.edu, a8-65.akam.net, dns-auth-prod-01.it.tufts.edu, a3-66.akam.net, a7-65.akam.net, a2-67.akam.net, a24-66.akam.net
Info::
6 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: 66 ms
Got: 66 ms
A151.101.130.133, 151.101.194.133, 151.101.2.133, 151.101.66.133
AAAA—
CNAME—
NSa1-196.akam.net, dns-auth-prod-02.it.tufts.edu, a8-65.akam.net, dns-auth-prod-01.it.tufts.edu, a3-66.akam.net, a7-65.akam.net, a2-67.akam.net, a24-66.akam.net
MX
5 ppagent-prod-03.uit.tufts.edu
5 ppagent-prod-02.uit.tufts.edu
5 ppagent-prod-01.uit.tufts.edu
5 ppagent-prod-06.uit.tufts.edu
5 ppagent-prod-05.uit.tufts.edu
5 ppagent-prod-04.uit.tufts.edu
TXT
jmKi6tDVAdTFEUZHrAjhMU1bGL75vMOlBMplidaCnTUQ1Pzj6yiPazB5w3WvesSAnHQMmGVh5gpXxRPF...
e2ma-verification=u7gfb
e2ma-verification=fvybb
dll190j6ho8nnlp4vgtthju34i
i4unqtnsbehvhc5dd0jmf5ke2v
fastly-domain-delegation-00397754-202555
mea0r24gpfajjq0cvnc98n4uuf
hxGlfaDhtrwRiEZV0Lk/tYkTEYkI3q3OF6W2gkTCnbjqq93yWGDl+S9EqjOHHhUFIZ6PjI7RJSBmcK7C...
webexdomainverification.FCQ9=0b6a743a-23c0-44fe-9d5c-55f03b4b400d
google-site-verification=nqgGzVYnaH-f9d0bKiAfAJq6DvZ4kFtdxdsPVXpZO6Q
e2ma-verification=suzbb
SFMC-2NL80EDOsuvMizj6RU-6t2ivNBbXPOFa8_T9I_9w
geneious.com:domain-verification=EOFsyiX3zeIHMibPfKXsMQ
unIkC2kKLzIXxOmLOcsHd4q/gRUpTu4sRdPI8tk6Bm+Fv08pvDqfQrkmTecXqNqGaTJ7HL4hI3ZQlXBy...
adobe-idp-site-verification=240d76c477095634998c7b00937c5269acaaee1aed912e1d9b1f...
e2ma-verification=fmycb
e2ma-verification=hj6fb
e2ma-verification=epybb
brevo-code:daef842027ed73ae6ab00a5232f2ee0c
uUanb3JP8swD9yx7j3tLbZKby1FMBIQRBTOKO7JWoGYEqshAw6dwjEcR/pc1LHYcn6gh+sorJZhaWPoL...
ih8nee66mp4cmt26m6mf1a6dnj
e2ma-verification=ldp
e2ma-verification=6bxcb
e2ma-verification=2bxcb
jamf-site-verification=MdoKwUDKn5g4qDVgurb2EA
e2ma-verification=gx7fb
notion-domain-verification=shv5wV69tn9stpSFVJ94tUEbwWMrmmZggH7sgZLOhuP
cisco-ci-domain-verification=72880ba08efe559073001634001b73135ed61e25760f643b3fd...
e2ma-verification=ddqab
google-site-verification=1pHtra0ws_rOomlKzK5seo5-9WBBG89V64ghZB43nCM
e2ma-verification=7bxcb
e2ma-verification=v2agb
e2ma-verification=uy5fb
e2ma-verification=lwu
m98prj8e1ojp37v6rfok1fmodq
apple-domain-verification=zbArtcw6JWjP8SQC
e2ma-verification=4bxcb
e2ma-verification=m85fb
pardot1046863=423583aabb9def01cf3e9ccfe70595df99075f7b5314790169746a0673b8151c
e2ma-verification=oywcb
e2ma-verification=akgbb
e2ma-verification=0n5fb
e2ma-verification=dbbgb
sending_domain1046863=5e3e4e59e83e0754be23442be3ae028746e99b3a776e8ddd3a3520c898...
SPF v=spf1 ip4:168.245.25.116 ip4:130.64.213.235 ip4:130.64.213.236 ip4:130.64.43.83...
fastly-domain-delegation-zuit77uufbtibnqvmrok--2023-10-12
e2ma-verification=9u7fb
google-site-verification=umCxQFbGoU5AY31Q-KRDgvEHLuYrlydu5d2thX6OGvQ
e2ma-verification=4k5fb
MS=ms84674111
sij7qofovndodvjgjhmgmkeof
jtj3p75gik0ognr69fjknrhksa
atlassian-domain-verification=PY6FlP7/ComixRgNwJiKXcMlscv/V2YSNMbBKDaNd/hwIGbv8Y...
google-site-verification=SfdAhoomHN3qsKBSgfxtmDvo-Gaf3AHfZUo9KH7XsMQ
166cnlocsbojao5qnbd63so2a4
webexdomainverification.GQWN=15b95947-d46c-4a47-a3a3-c7dd2e9f7272
e2ma-verification=lelgb
CAALookup not available with standard resolver
Resolved in 66 ms

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), 54 ms total
PASS
1 redirect(s), 54 ms total
Info::
Single redirect
Got: https://tufts.edu → https://www.tufts.edu/ (301)
Info::
WWW normalization redirect

https://tufts.edu

12 ms · HTTP/1.1

301

https://www.tufts.edu/

42 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://tufts.edu30112 msHTTP/1.1Pantheon
2https://www.tufts.edu/20042 msHTTP/1.1nginx

See the visual redirect chain in the HTTP Probe tab →

A+
Crawlability
robots.txt present, sitemap with 102 URLs
PASS
robots.txt present, sitemap with 102 URLs
Info::
robots.txt is present
Got: 2027 bytes
Info::
sitemap.xml is present
Info::
sitemap.xml is valid XML
Info::
sitemap.xml contains 102 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 102 entries Valid XML Yes
Sample URLs:
A+
Domain Intelligence
tufts.edu — 39 years, 4 months old, hosted on Fastly
PASS
tufts.edu — 39 years, 4 months old, hosted on Fastly
Info::
Domain registered until Jul 31, 2026 (3 months remaining)
Info::
Hosting: Fastly
Got: AS54113
Domain expiry

45 days

July 31, 2026

SSL certificate

25 days

Issued by Certainly

Domain age

39 years, 4 months

Registered June 22, 1987

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Fastly

ASN AS54113

151.101.194.133

Registrar

Registrar unknown

Lock status unknown 8 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
  • Renew the TLS certificate or verify auto-renewal is working
Registrar
Created June 22, 1987 (39 years, 4 months ago)
Expires July 31, 2026 (3 months)
Last Updated March 10, 2026
Name Servers a2-67.akam.net, a24-66.akam.net, a1-196.akam.net, dns-auth-prod-02.it.tufts.edu, a8-65.akam.net, dns-auth-prod-01.it.tufts.edu, a3-66.akam.net, a7-65.akam.net
Registrant Tufts University
Hosting
IP Address 151.101.194.133
ASN AS54113 (FASTLY - Fastly, Inc., US)
Provider Fastly
Data source: whois (0.9s)
A+
HTTP Probe Timing
Total 36 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
28 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
0 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
4 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
36 ms
Total Time Total request time from DNS lookup through full response.
36 ms

Connection waterfall

DNS Lookup 28 ms TCP Connect 0 ms TLS Handshake 4 ms Server Processing 4 ms Content Transfer 0 ms
A+
CDN & Delivery
Fastly (HIT, MISS)
PASS
Fastly (HIT, MISS)
Info::
Site is served via Fastly CDN
Got: x-served-by: cache-toj-leto2350053-TOJ, cache-toj-leto2350075-TOJ
Info::
CDN cache status: HIT, MISS
CDN Detected: Fastly
Provider Fastly Cache Status HIT, MISS Evidence x-served-by: cache-toj-leto2350053-TOJ, cache-toj-leto2350075-TOJ
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback