Illinois research universities: security rankings

Security scores, grades, and the most common failures for 10 Illinois research university websites, from ScanGov homepage scans.

  • Sites: 10
  • Last scan: 11/8/2026

Showing Illinois research university sites. All education sites

R1 and R2 universities in Illinois, public and private together.

B 85

Average security score of 10 fully scanned Illinois research university sites

7th

of 17 states, ranked by average security score

10 of 10

Illinois research university sites fully scanned

B 85

Average security score of all 2,687 fully scanned education sites

How Illinois security scores are distributed

Smoothed distribution of the 10 fully scanned Illinois research university sites, score 0 to 100. Height shows how many sites score near each value.

  • Illinois average
  • All education average
View the data table
Score rangeSites
0 to 90
10 to 190
20 to 290
30 to 390
40 to 490
50 to 590
60 to 690
70 to 793
80 to 896
90 to 1001

Illinois research universities by security grade, compared with all education sites

Share of fully scanned sites in each grade band. Illinois research universities: 10 sites. All education: 2687 sites.

  1. Illinois
  2. All education sites
  • A (90 to 100)
  • B to C (70 to 89)
  • D to F (below 70)
View the data table
GroupA (90 to 100)B to C (70 to 89)D to F (below 70)
Illinois10% (1)90% (9)0% (0)
All education sites19% (505)79% (2,113)3% (69)

Top 3 Illinois research university sites by security score

#1 in Illinois · U.S. education rank 1

Illinois Institute of Technology

A 100 security

  • Accessibility A
  • Botability A
  • Security A
  • Usability F
  • Readability F

#2 in Illinois · U.S. education rank 3

DePaul University

B 87 security

  • Accessibility A
  • Botability A
  • Security B
  • Usability D
  • Readability A

#2 in Illinois · U.S. education rank 3

Illinois State University

B 87 security

  • Accessibility A
  • Botability C
  • Security B
  • Usability D
  • Readability A

Most common security failures among Illinois research university sites

Share of the 10 fully scanned Illinois research university sites failing each check. A site can fail more than one check. Each check links to its standard and how to fix it.

  1. X-Content-Type-Options70%
  2. Errors in the console30%
  3. Sponsored top-level domain (sTLD)10%
  4. Security.txt10%
View the data table
CheckShare failingSites failing
X-Content-Type-Options70%7
Errors in the console30%3
Sponsored top-level domain (sTLD)10%1
Security.txt10%1

What each check means

  • X-Content-Type-Options. The site tells browsers not to guess the type of files it serves. Browsers might run dangerous files by mistake.
  • Errors in the console. The page loads without JavaScript or network errors. Site may have hidden bugs that break features.
  • Sponsored top-level domain (sTLD). The site uses a government-issued domain (.gov, .edu, or .mil). People cannot tell if your site is real government.
  • Security.txt. The site has a security.txt file so researchers know how to report issues. Security researchers cannot report problems to you.

Research universities in Illinois by security score

Rank Site Checks passed Grade
1 iit.edu
Illinois Institute of Technology U.S. rank 1 		8 of 8 checks pass A
2 depaul.edu
DePaul University U.S. rank 3 		7 of 8 checks pass B
2 illinoisstate.edu
Illinois State University U.S. rank 3 		7 of 8 checks pass B
2 luc.edu
Loyola University Chicago U.S. rank 3 		7 of 8 checks pass B
2 northwestern.edu
Northwestern University U.S. rank 3 		7 of 8 checks pass B
2 uchicago.edu
University of Chicago U.S. rank 3 		7 of 8 checks pass B
2 illinois.edu
University of Illinois Urbana-Champaign U.S. rank 3 		7 of 8 checks pass B
3 uic.edu
University of Illinois Chicago U.S. rank 5 		7 of 9 checks pass C
4 niu.edu
Northern Illinois University U.S. rank 6 		6 of 8 checks pass C
4 siu.edu
Southern Illinois University-Carbondale U.S. rank 6 		6 of 8 checks pass C

About this data

ScanGov scans the homepage of each college and university site on our higher education list. Scores come from the checks in the ScanGov standards. Sites were scanned between 10/27/2026 and 11/8/2026. Each site's report shows its own scan date. A site counts as fully scanned when its homepage loaded and sent us its page content. Averages, grade shares, failure rates, and ranks use fully scanned sites only. Grades follow the ScanGov grade scale. Rank follows the ScanGov ranking method. The full dataset, with every county's raw results, is in the ScanGov data repository.

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