Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Probed from Madrid, Spain

301 Moved Permanently

Checks

5 PASS 3 REVIEW 1 FIX

CDN & Delivery

Action

No CDN detected

FIX

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.

IPv6 Readiness

Action

No IPv6 support

REVIEW

No IPv6 support

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

URL Variants

www/non-www, trailing slash, HTTP→HTTPS

REVIEW

www/non-www, trailing slash, HTTP→HTTPS

Both www and non-www versions serve content

Got: Both variants return 200 Expected: One variant 301-redirects to the other

HTTP correctly 301-redirects to HTTPS

www / non-www

200https://www.mtu.edu/

200https://mtu.edu/

Inconsistent — duplicate content risk

HTTP → HTTPS

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

Consistent

TLS Certificate Expiry & Recommendations

230 days until leaf cert expires — 3 issues to address

REVIEW

Certificate validity

230

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

DNS Records

1 A records, 446 ms lookup

PASS

1 A records, 446 ms lookup

Resolves to 1 IPv4 address(es)

Got: 141.219.70.117

Single A record — no DNS redundancy

Multiple A records provide failover if one server goes down.

No IPv6 (AAAA) records

5 nameserver(s) configured

Got: dns.mtu.edu, dns1.merit.net, dns2.mtu.edu, dns3.merit.net, dns2.merit.net

5 mail exchanger(s) configured

CAA records not checked

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

SPF record present in TXT

DNS resolution is slow (446 ms)

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

Got: 446 ms

A	141.219.70.117
AAAA	—
CNAME	—
NS	dns.mtu.edu, dns1.merit.net, dns2.mtu.edu, dns3.merit.net, dns2.merit.net
MX	1 aspmx.l.google.com 5 alt2.aspmx.l.google.com 5 alt1.aspmx.l.google.com 10 aspmx3.googlemail.com 10 aspmx2.googlemail.com
TXT	e2ma-verification=guveb e2ma-verification=duvet e2ma-verification=hd0fb apple-domain-verification=9TnymFYXDrZtPI4H e2ma-verification=kuveb atlassian-domain-verification=2qCpeFuaK61/oMB9pXnozR19mgu8KbyNdwprWPvmWgxYfnvg5V... e2ma-verification=c4zcb amazonses:KUSt0CCDJKsqh3o9tzCqLjbQgUB5R2qu9M0Y181h744= SPF v=spf1 ip4:141.219.0.0/16 include:secure.giftlegacy.com include:_spf.google.com ... google-site-verification=_AZlprY5eM4Vq-CEZYqi5Vdijf5ACXlgjUcmaZO44NU e2ma-verification=juveb e2ma-verification=duveb MS=ms79839354 e2ma-verification=d4zcb e2ma-verification=wtveb google-site-verification=wBIpx8JjuJfOH4oBmX8gtGGdRbSnHHL_LkH6ObknzBs adobe-idp-site-verification=d1db47eb4cb939d4e965bb06f5ceacd822bc7b3e088fcfe12f36... e2ma-verification=luveb e2ma-verification=5gpeb
CAA	Lookup not available with standard resolver

Resolved in 446 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

Redirect Chain

1 redirect(s), 638 ms total

PASS

1 redirect(s), 638 ms total

Single redirect

Got: https://mtu.edu → https://www.mtu.edu/ (301)

WWW normalization redirect

Redirect overhead: 638 ms total

Got: 638 ms

https://mtu.edu

394 ms · HTTP/1.0

301

https://www.mtu.edu/

245 ms · HTTP/1.1 FINAL

#	URL	Status	Time	Protocol	Server
1	https://mtu.edu	301	394 ms	HTTP/1.0	BigIP
2	https://www.mtu.edu/	200	245 ms	HTTP/1.1	cloudflare

See the visual redirect chain in the HTTP Probe tab →

Crawlability

robots.txt present, sitemap with 0 URLs

PASS

robots.txt present, sitemap with 0 URLs

robots.txt is present

Got: 7418 bytes

sitemap.xml is present

sitemap.xml is valid XML

sitemap.xml is empty — no URLs found

An empty sitemap provides no value. Add <url> entries for your pages.

robots.txt references sitemap

An empty sitemap provides no value. Add <url> entries for your pages.

Why this matters

An empty sitemap signals 'no content to index' to Google — actively harmful versus having no sitemap at all.

Learn more ▾

Google compares URLs in the sitemap against URLs it has crawled. An empty sitemap on a site with thousands of pages signals abandonment. Either populate it correctly (most CMSes auto-generate) or delete the file and let Google crawl normally.

Source: Google Search Central / sitemaps.org

robots.txt 200 OK

Size 7418 B Sitemaps referenced 3 User-agents * Blocking No — crawling allowed

# robots.txt for https://www.mtu.edu

User-agent: *
Disallow: /eds					    # temporary stuff
Disallow: /four					   # future designs and history presentation stuff
Disallow: /old					    # old stuff
Disallow: /history				    # old stuff
Disallow: /apply/disabled_keep/		    # down-time files and old stuff
Disallow: /mtuonly				    # private stuff
Disallow: /level4/mtfcampaign/	    # redirected site
Disallow: /greatevents			    # old stuff
Disallow: /cie/sa/				    # redirected site
Disallow: /athletics			    # testing zone--use www.athletics.mtu.edu
Disallow: /index_n.html			    # homepage wannabe
Disallow: /index_n1.html		    # homepage wannabe
Disallow: /index_n2.html		    # homepage wannabe
Disallow: /index_n3.html		    # homepage wannabe
Disallow: /index_n4.html		    # homepage wannabe
Disallow: /index_testing.html		    # homepage testing zone
Disallow: /index-3tabs.php		    # homepage testing 3tab site
Disallow: /index_alert.html	        # holding spot for crisis situation
Disallow: /index_snow	            # holding spot for snow situation (design 2)
Disallow: /urel/policy/mtu_web.html #draft not yet approved
Disallow: /adminresources			    # old information
Disallow: /cie			         # website moved to ips server
Disallow: /catalog/2000-02		# 2000-02 Undergradaute Catalog
Disallow: /catalog/2002-04		# 2002-04 Undergraduate Catalog
Disallow: /openhouse/index_archive_save/      # indices that rotate in
Disallow: /adminresources/old/                # moved for Ann Roth
Disallow: /wwwhelp/disabled/                # old logos
Disallow: /test                             # test files
Disallow: /index_save                       # old files
Disallow: /banners/                      # don't want these on hit stats
Disallow: /2002/
Disallow: /2003/
Disallow: /five/
Disallow: /fall02/
Disallow: /level2/
Disallow: /level3/
Disallow: /level4/
Disallow: /logotest/
Disallow: /index_sjb.html
Disallow: /index_nw.html
Disallow: /index_s.html
Disallow: /index_sb.html
Disallow: /index_old.html
Disallow: /index_n06.html
Disallow: /index_n07.html
Disallow: /example
Disallow: /besmart/disabled/
Disallow: /disabled/
Disallow: /carnival/2*		# blocking old carnival pages with duplicate title tags
Allow: /carnival/2025		# allow current year
Allow: /carnival/2*/images/
Disallow: /campaign/
Disallow: /catalog/archives/ 		# old catalogs
Disallow: /mtu_resources/banners/
Disallow: /mtu_resources/cache/
Disallow: /mtu_resources/php/
Allow: /mtu_resources/php/home/components/
Allow: /mtu_resources/php/ou/images/crop.php*
Allow: /mtu_resources/php/ou/images/news-crop.php*
Allow: /mtu_resources/php/ou/news/amp.php*
Allow: /mtu_resources/php/vanity*
Disallow: /calendar/events.php
Disallow: /calendar/month.php
Disallow: /calendar/day.php
Disallow: /calendar/rss.php
Disallow: /calendar/print.php
Disallow: /calendar/search.php
Disallow: /calendar/login/
Disallow: /home/
Disallow: /admissions/event-registration/
Disallow: /facultyupdate/
Allow: /mtuldapweb/web_lookup/index.cgi
Disallow: /mtuldapweb/web_lookup/index.cgi*?
Disallow: /ou-*
Disallow: /housing/mymichigantech/
Disallow: /.ldp/images/*

Disallow: /mtu_resources/archives/catalog/		# blocking old undergraduate catalogs
Disallow: /alert/homepage/	# blocking individual Alert messages
Disallow: /mtu_resources/full-news-2016.php	# blocking RSS Feeds
Disallow: /techalum/issue/
Disallow: /techalum/oldarchives/

Disallow: /ttoday/?issue=*

Disallow: /news/2005/
Disallow: /news/2006/
Disallow: /news/2007/
Disallow: /news/2008/
Disallow: /news/2009/
Disallow: /news/2010/
Disallow: /news/2011/
Disallow: /news/2012/
Disallow: /news/2013/
Disallow: /news/2014/
Disallow: /news/2015/
Disallow: /news/2016/

Disallow: /unscripted/2016/

Disallow: */issue-template/*

Disallow: /magazine/2015*
Disallow: /magazine/2016*

Disallow: /magazine/research/2015*
Disallow: /magazine/research/2016*

Allow: /magazine/spring12/stories/chang-park/

Disallow: *.xml
Disallow: *.cgi

# News stories that had more than 100 views last year, that would otherwise be blocked
Allow: /news/2010/10/just-time-for-halloween-michigan-tech-students-solve-mystery-paulding-light.html
Allow: /news/2010/01/best-best-15-years-astronomy-picture-day.html
Allow: /news/2010/01/what-happened-haiti.html
Allow: /news/2010/09/hot-topic-earth-sciences-mantle-plume-model-siberian-traps.html
Allow: /news/2011/06/environmental-scientists-call-north-american-model-wildlife-conservation-flawed.html
Allow: /news/2012/03/wolf-population-isle-royale-drops-lowest-has-ever-been.html
Allow: /news/2012/03/what-should-done-disappearing-wolves-isle-royale.html
Allow: /news/2012/06/mystery-solved-wolves-drowned-old-mine-shaft-isle-royale-national-park.html
Allow: /news/2012/05/sex-its-good-thing-evolutionarily-speaking.html
Allow: /news/2013/03/isle-royale-wolves-fall-prey-inbreeding-problems.html
Allow: /news/2013/12/things-make-winter-epic-michigan-tech.html
Allow: /news/2013/04/zinc-perfect-material-for-bioabsorbable-stents.html
Allow: /news/2014/02/what-do-do-now-family-members-brain-dead.html
Allow: /news/2014/09/black-new-green-biochar-beats-wood-cook-stoves.html
Allow: /news/2014/06/before-there-c-there-n-how-humans-derailed-nitrogen-cycle-trying-put-back-track.html
Allow: /news/2015/10/shining-more-light-solar-panels.html
Allow: /news/2015/07/carbon-nanotube-speakers-play-music-heat.html
Allow: /news/2015/03/tapping-into-mine-water-for-geothermal-energy.html
Allow: /news/2015/09/perfect-timing-for-fabrizio-zanello-watchword-patek.html
Allow: /news/2015/08/michigan-tech-top-public-university-state-for-mid-career-earnings-graduates.html
Allow: /news/2016/02/menominee-crack-geological-pop-up-structure.html
Allow: /news/2016/05/leaving-electrical-grid-upper-peninsula.html
Allow: /news/2016/02/memristors-making-new-generation-for-digital-memory-computation.html
Allow: /news/2016/12/driving-winter-wonderland.html
Allow: /news/2016/01/drone-catcher-robotic-falcon-can-capture-retrieve-renegade-drones.html
Allow: /news/2016/11/cloud-box-mixing-aerosols-turbulence.html
Allow: /news/2016/09/guide-seq-dna-duct-tape-mark-dna-damage.html

# Unscripted stories that had more than 100 views last year, that would otherwise be blocked
Allow: /unscripted/2016/10/grow-chinese-elm.html
Allow: /unscripted/2016/04/importance-restoring-wolf-predation-isle-royale.html
Allow: /unscripted/2016/09/geoheritage-stamping-through-history.html
Allow: /unscripted/2016/09/geoheritage-more-than-boulder.html

# Magazine stories that had more than 100 views last year, that would otherwise be blocked
Allow: /magazine/2015-1/index.html
Allow: /magazine/2015-2/index.html
Allow: /magazine/2015-2/stories/douglass-houghton/
Allow: /magazine/2016-1/index.html
Allow: /magazine/2016-2/index.html
Allow: /magazine/2016-2/stories/legend/
Allow: /magazine/2016-1/stories/heart-husky/
Allow: /magazine/2016-2/stories/company-town/
Allow: /magazine/2016-1/stories/somethings-brewing/
Allow: /magazine/research/2015/index.html
Allow: /magazine/research/2016/index.html
Allow: /magazine/research/2016/stories/peat-harvest/

#Allow: /mtu_resources/php/ou/profiles/display-n.php #robots noindex added, waiting for GSC to clear all results

Allow: /_api/v1/program-sorter/sitemap
Allow: /mtu_resources/php/ou/news/sitemap.php
Sitemap: https://www.mtu.edu/sitemap.txt
Sitemap: https://www.mtu.edu/mtu_resources/php/ou/news/sitemap.php
Sitemap: https://www.mtu.edu/_api/v1/program-sorter/sitemap

sitemap.xml 200 OK

Type URL Set URLs 0 entries Valid XML Yes

A+

Domain Intelligence

mtu.edu — 39 years, 5 months old, hosted on MICHIGANTECH - Michigan Technological University, US

PASS

mtu.edu — 39 years, 5 months old, hosted on MICHIGANTECH - Michigan Technological University, US

Domain registered until Jul 31, 2027 (1 years, 3 months remaining)

Hosting: MICHIGANTECH - Michigan Technological University, US

Got: AS62618

Domain expiry

380 days

July 31, 2027

SSL certificate

230 days

Issued by Internet2

Domain age

39 years, 5 months

Registered May 20, 1987

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

MICHIGANTECH - Michigan Technological University, US

ASN AS62618

141.219.70.117

Registrar

Registrar unknown

Lock status unknown 5 NS records

Expiry timeline

Today

+1 year

Domain expiry SSL expiry Danger zone (≤30 days)

Registrar

Created May 20, 1987 (39 years, 5 months ago)

Expires July 31, 2027 (1 years, 3 months)

Last Updated November 15, 2024

Name Servers dns2.mtu.edu, dns.mtu.edu, dns3.merit.net, dns1.merit.net, dns2.merit.net

Registrant Michigan Technological University

Hosting

IP Address 141.219.70.117

ASN AS62618 (MICHIGANTECH - Michigan Technological University, US)

Provider MICHIGANTECH - Michigan Technological University, US

Data source: whois (1.0s)

HTTP Probe Timing

Total 528 ms — DNS, TCP, TLS, TTFB, content transfer breakdown

PASS

DNS Lookup

136 ms

TCP Connect

129 ms

TLS Handshake

133 ms

Time to First Byte

528 ms

Total Time

528 ms

Connection waterfall

DNS Lookup 136 ms TCP Connect 129 ms TLS Handshake 133 ms Server Processing 130 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.