Showing Colorado county sites. All U.S. county sites
B 86
Average security score of 33 fully scanned Colorado county sites
11th
of 48 states, ranked by average security score
33 of 63
Sites fully scanned. We couldn't fully scan 30, so they're listed without grades
B 88
U.S. county average security score, 2435 fully scanned sites
Colorado's state site, colorado.gov, could not be fully scanned. State rankings.
How Colorado county security scores are distributed
Smoothed distribution of the 33 fully scanned Colorado county sites, score 0 to 100. Height shows how many sites score near each value.
Distribution of 33 scores. The data table lists counts by score range.
- Colorado average
- U.S. county average
View the data table
| Score range | Sites |
|---|---|
| 0 to 9 | 0 |
| 10 to 19 | 0 |
| 20 to 29 | 0 |
| 30 to 39 | 0 |
| 40 to 49 | 0 |
| 50 to 59 | 0 |
| 60 to 69 | 2 |
| 70 to 79 | 7 |
| 80 to 89 | 14 |
| 90 to 100 | 10 |
Colorado counties by security grade
Each county with a site on our list is colored by that site's grade. Select a county to open its report. The table lists every site.
- A (90 to 100)
- B to C (70 to 89)
- D to F (below 70)
- Not fully scanned
- No site on our list
Colorado counties by security grade, compared with all U.S. counties
Share of fully scanned sites in each grade band. Colorado: 33 sites. U.S.: 2435 sites.
- A (90 to 100)
- B to C (70 to 89)
- D to F (below 70)
View the data table
| Group | A (90 to 100) | B to C (70 to 89) | D to F (below 70) |
|---|---|---|---|
| Colorado | 30% (10) | 64% (21) | 6% (2) |
| All U.S. counties | 34% (823) | 65% (1,574) | 2% (38) |
Top 3 Colorado county sites by security score
#1 in Colorado · U.S. rank 1
Archuleta County, CO
A 100 security
- Accessibility A
- Botability D
- Security A
- Usability C
#1 in Colorado · U.S. rank 1
Baca County, CO
A 100 security
- Accessibility A
- Botability B
- Security A
- Usability F
#1 in Colorado · U.S. rank 1
Custer County, CO
A 100 security
- Accessibility C
- Botability B
- Security A
- Usability F
What each check means
- 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.
- Errors in the console. The page loads without JavaScript or network errors. Site may have hidden bugs that break features.
- Security.txt. The site has a security.txt file so researchers know how to report issues. Security researchers cannot report problems to you.
All Colorado county sites by security score
| Rank | Site | Checks passed | Grade |
|---|---|---|---|
| 1 |
archuletacounty.gov
Archuleta County, CO U.S. rank 1 |
8 of 8 checks pass | A |
| 1 |
bacacountyco.gov
Baca County, CO U.S. rank 1 |
7 of 7 checks pass | A |
| 1 |
custercounty-co.gov
Custer County, CO U.S. rank 1 |
8 of 8 checks pass | A |
| 1 |
deltacountyco.gov
Delta County, CO U.S. rank 1 |
8 of 8 checks pass | A |
| 1 |
fremontcountyco.gov
Fremont County, CO U.S. rank 1 |
7 of 7 checks pass | A |
| 1 |
lakecountyco.gov
Lake County, CO U.S. rank 1 |
8 of 8 checks pass | A |
| 1 |
parkcountyco.gov
Park County, CO U.S. rank 1 |
8 of 8 checks pass | A |
| 1 |
sanmiguelcountyco.gov
San Miguel County, CO U.S. rank 1 |
8 of 8 checks pass | A |
| 1 |
tellercounty.gov
Teller County, CO U.S. rank 1 |
8 of 8 checks pass | A |
| 1 |
weld.gov
Weld County, CO U.S. rank 1 |
8 of 8 checks pass | A |
| 2 |
alamosacounty.org
Alamosa County, CO U.S. rank 3 |
7 of 8 checks pass | B |
| 2 |
broomfield.org
Broomfield, CO U.S. rank 3 |
7 of 8 checks pass | B |
| 2 |
clearcreekcounty.us
Clear Creek County, CO U.S. rank 3 |
7 of 8 checks pass | B |
| 2 |
elbertcounty-co.gov
Elbert County, CO U.S. rank 3 |
7 of 8 checks pass | B |
| 2 |
gunnisoncounty.org
Gunnison County, CO U.S. rank 3 |
7 of 8 checks pass | B |
| 2 |
mesacounty.us
Mesa County, CO U.S. rank 3 |
7 of 8 checks pass | B |
| 2 |
ouraycountyco.gov
Ouray County, CO U.S. rank 3 |
7 of 8 checks pass | B |
| 3 |
adamscountyco.gov
Adams County, CO U.S. rank 4 |
6 of 7 checks pass | B |
| 3 |
bouldercounty.gov
Boulder County, CO U.S. rank 4 |
6 of 7 checks pass | B |
| 3 |
co.cheyenne.co.us
Cheyenne County, CO U.S. rank 4 |
6 of 7 checks pass | B |
| 3 |
elpasoco.com
El Paso County, CO U.S. rank 4 |
6 of 7 checks pass | B |
| 3 |
lpcgov.org
La Plata County, CO U.S. rank 4 |
6 of 7 checks pass | B |
| 3 |
prowersco.gov
Prowers County, CO U.S. rank 4 |
6 of 7 checks pass | B |
| 3 |
summitcountyco.gov
Summit County, CO U.S. rank 4 |
6 of 7 checks pass | B |
| 4 |
co.grand.co.us
Grand County, CO U.S. rank 6 |
7 of 9 checks pass | C |
| 5 |
denvergov.org
City and County of Denver, CO U.S. rank 7 |
6 of 8 checks pass | C |
| 5 |
garfieldcountyco.gov
Garfield County, CO U.S. rank 7 |
6 of 8 checks pass | C |
| 5 |
pitkincounty.com
Pitkin County, CO U.S. rank 7 |
6 of 8 checks pass | C |
| 5 |
co.routt.co.us
Routt County, CO U.S. rank 7 |
6 of 8 checks pass | C |
| 6 |
huerfano.us
Huerfano County, CO U.S. rank 8 |
5 of 7 checks pass | C |
| 6 |
county.pueblo.org
Pueblo County, CO U.S. rank 8 |
5 of 7 checks pass | C |
| 7 |
jeffco.us
Jefferson County, CO U.S. rank 9 |
6 of 9 checks pass | D |
| 8 |
rbc.us
Rio Blanco County, CO U.S. rank 10 |
5 of 8 checks pass | D |
|
arapahoeco.gov
Arapahoe County, CO |
Not fully scanned, so not graded. We didn't scan your site because its robots.txt asked us not to. Status 998 | - | |
|
bentcounty.net
Bent County, CO |
Not fully scanned, so not graded. We didn't scan your site because its robots.txt asked us not to. Status 998 | - | |
|
chaffeecounty.org
Chaffee County, CO |
Not fully scanned, so not graded. We couldn't scan your site because it showed our bot a captcha or browser check instead of the page. Status 996 | - | |
|
conejoscounty.colorado.gov
Conejos County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
costillacounty.gov
Costilla County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
crowleycounty.colorado.gov
Crowley County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
dolocnty.colorado.gov
Dolores County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
douglas.co.us
Douglas County, CO |
Not fully scanned, so not graded. We didn't scan your site because its robots.txt asks crawlers to wait longer than we can. Status 997 | - | |
|
eaglecounty.us
Eagle County, CO |
Not fully scanned, so not graded. We couldn't scan your site because it showed our bot a captcha or browser check instead of the page. Status 996 | - | |
|
gilpincounty.colorado.gov
Gilpin County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
hinsdalecounty.colorado.gov
Hinsdale County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
jacksoncounty.colorado.gov
Jackson County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
kiowacounty.colorado.gov
Kiowa County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
kitcarsoncounty.colorado.gov
Kit Carson County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
larimer.gov
Larimer County, CO |
Not fully scanned, so not graded. We couldn't scan your site because it showed our bot a captcha or browser check instead of the page. Status 996 | - | |
|
lasanimascounty.colorado.gov
Las Animas County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
lincolncounty.colorado.gov
Lincoln County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
logancounty.colorado.gov
Logan County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
mineralcountycolorado.com
Mineral County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
moffatcounty.colorado.gov
Moffat County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
montezumacounty.org
Montezuma County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
morgancounty.colorado.gov
Morgan County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
oterocounty.colorado.gov
Otero County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
phillipscounty.colorado.gov
Phillips County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
riograndecounty.colorado.gov
Rio Grande County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
saguachecounty.colorado.gov
Saguache County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
sanjuancounty.colorado.gov
San Juan County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
sedgwickcounty.colorado.gov
Sedgwick County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
washingtoncounty.colorado.gov
Washington County, CO |
Not fully scanned, so not graded. We couldn't fully scan your site because it responded without any page content. Status 995 | - | |
|
yumacounty.net
Yuma County, CO |
Not fully scanned, so not graded. We weren't able to fully scan your site. Status 404 | - |
About security
Secure your site and protect users with proper security practices.
Why it's important
Strong defenses prevent hackers from stealing personal information and other confidential data.
Risks
- Hackers can steal private information from your site.
Guidance
What we use to grade security:
- CISA Website Security
- 21st Century Integrated Digital Experience Act (IDEA)
- CISA Cybersecurity Performance Goals
- RFC 9116
- OWASP Top 10
- U.S. Federal Website Standards
Standards
- Content security policy (CSP)
- HTTP Strict Transport Security (HSTS)
- security.txt
- X-Content-Type-Options
- Errors in the console
- Clickjacking mitigation
- Paste preventing inputs
- Hypertext Transfer Protocol Secure (HTTPS)
- Sponsored top-level domain (sTLD)
Grades/scores
ScanGov
About this data
ScanGov scans the homepage of each county government site on our county list in Colorado. Scores come from the checks listed on standards.scangov.org. Sites were scanned between 7/18/2026 and 9/18/2026; each site's report shows its own scan date. A site counts as fully scanned when its homepage returned successfully and sent the scanner its page content. Averages, grade shares, failure rates, and ranks use fully scanned sites only. We weren't able to fully scan 30 sites because they did not respond, blocked the scanner, or returned no page content. They appear in the table without grades, each with its scan status, and are left out of every figure. Grades follow the ScanGov grade scale, and rank follows the ScanGov ranking method. The full dataset, including every county's raw results, is published in the ScanGov data repository.