Jeffco.us Jefferson County, CO | Official Website

The home page for Jefferson County Colorado.

Jeffco.us Overview

/100

Mobile usability 95/100

Google Analytics tracking code is present

The website follows a clear and concise structure that is well-optimized and user-friendly. The website fulfills its purpose of providing information and resources on Jefferson County, CO to its residents, visitors, and businesses. It is visually appealing, easy to navigate, and well-organized, with vibrant colors, high-resolution images, and well-designed icons and graphics.

The homepage features a header with the county logo and a responsive menu for quick and easy access to the main categories of the website. The main menu includes Home, Our County, Services, How Do I, Doing Business, and Contact Us, which are further sub-categorized to different departments and services offered by Jefferson County. The footer section contains links to important resources such as news, events, job opportunities, and social media.

The website also has a prominent search bar that enables visitors to search for specific information they are interested in or resources they are looking for. Additionally, the website features sliders and carousels with high-quality images to highlight the county's attractions, updates, and featured services, making the homepage more inviting and engaging.

The website's performance is average, with a PageSpeed Insights score of 55/100. This score indicates that the website's page load speed may not be as fast as possible, and improvements can be made in optimizing images, reducing server response time, and enabling browser caching. However, the website's mobile usability score is high, indicating that the website is compatible with different mobile devices and adaptable to different screen sizes.

The website's SSL certificate issued by DigiCert Inc ensures the safety and security of its visitors' information, protecting against malware and phishing attacks. Also, with the Google Analytics tracking code, the website can collect and analyze data about visitors' behavior, geographic location, interests, and the pages they visit, providing insights for improving the website's performance and visitor experience.

In conclusion, jeffco.us is a well-structured and engaging website that represents Jefferson County's values, history, culture, and resources. Although there is room for improvement in the website's performance, its mobile usability and safety features make it a family-friendly and valuable online resource for the county's residents, visitors, and businesses. The website showcases the county's strengths and opportunities, providing a platform for engagement, empowerment, and growth.

Jeffco.us Rank Summary

Global Rank

105,262

Average Load Time

0.92sec

Links In Count

598

Website Value

$116,917

Audience Geography. Where are jeffco.us visitors located?

Country	Visitors
United States US	71.9%
Japan JP	25.5%
India IN	1%
Other	1.6%

Country	Pageviews
United States US	84.2%
Japan JP	12.9%
India IN	0.7%
Other	2.2%

Country	Rank
United States US	24701
Japan JP	31954
India IN	286900

Where do visitors go on jeffco.us?

Subdomain	Pageviews
jeffco.us	42.39%
co.jeffco.us	12.88%
propertysearch.jeffco.us	12.85%
inmatelookup.jeffco.us	12.85%
sts.jeffco.us	4.51%
gis.jeffco.us	4.47%
meetings.jeffco.us	1.11%
time.jeffco.us	1%
other	7.96%

Subdomain	Pageviews per User
co.jeffco.us	6.9
propertysearch.jeffco.us	4.7
jeffco.us	2.4
time.jeffco.us	2
meetings.jeffco.us	2
inmatelookup.jeffco.us	2
gis.jeffco.us	1.8
sts.jeffco.us	1.4

Subdomain	Reach
jeffco.us	59%
inmatelookup.jeffco.us	27.34%
sts.jeffco.us	11.27%
propertysearch.jeffco.us	9.33%
gis.jeffco.us	8.22%
co.jeffco.us	6.33%
time.jeffco.us	2.1%
meetings.jeffco.us	2.06%

How popular is jeffco.us?

Period	Global Rank	Global Rank Delta
past 3 months	105262	-938
past month	102971	-2671
past week	115098	16837
yesterday	203471	100726

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	98873	-1784	55	3%	3.5	3%
30	99673	3340	55	-2.9%	3.4	-10.58%
7	96771	3264	6	-3.75%	4.5	20%
1	190646	119612	28	-66.05%	4	-40.58%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	115068	-133	57	-0.17%
30	111676	-5556	6	9%
7	133620	25113	49	-21.94%
1	222278	85097	3	-42.84%

Jeffco.us Website Safety

Overview

Last Updated: 11/21/2024

Overall result - jeffco.us is safe.

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Last Updated: 03/24/2024

jeffco.us is safe.

Norton ConnectSafe evaluates jeffco.us for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 02/13/2019

jeffco.us is safe.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing

Last Updated: 01/09/2019

jeffco.us is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.

Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

Site Advisor

Last Updated: 02/23/2021

jeffco.us is safe.

McAfee assesses jeffco.us for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze jeffco.us for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/10/2019

jeffco.us child safety is very good.

The WOT calculates reputation of the jeffco.us. This reputation system receives ratings from users and information from third-party sources, assesses the jeffco.us for safety features and confirms, whether jeffco.us is suitable for children.

SSL Information

SSL Checker Tool

Domain	jeffco.us
Issuer Organization	DigiCert Inc
Issuer	GeoTrust TLS RSA CA G1
Algorithm	RSA-SHA512
Valid form	01/11/2024
Expiration	02/10/2025
Signed	Certificate is not self signed
Additional Domains	jeffco.us www.jeffco.us .admin.co.jeffco.us .jeffco.us

Jeffco.us Rank History

Alexa Rank shows how popular jeffco.us is in comparison with other sites. The most popular site has Alexa Rank equals 1. If jeffco.us has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to jeffco.us and pageviews on jeffco.us over the past 3 months.

Jeffco.us Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 53529

ASN Title: JCC-ASN - Jefferson County, Colorado, US

Last Update: 07/19/2024

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 53529
ASName: JCC-ASN
ASHandle: AS53529
RegDate: 2010-06-01
Updated: 2012-02-24
Ref: https://rdap.arin.net/registry/autnum/53529

OrgName: Jefferson County, Colorado
OrgId: JCC-9
Address: IT-Operations Dept.
Address: 3500 Illinois St. Suite 2500
City: Golden
StateProv: CO
PostalCode: 80401
Country: US
RegDate: 1994-04-18
Updated: 2013-07-26
Comment: Jefferson County, Colorado Administration
Ref: https://rdap.arin.net/registry/entity/JCC-9

OrgTechHandle: NETWO3805-ARIN
OrgTechName: NetworkAdmin
OrgTechPhone: +1-303-271-8834
OrgTechEmail: ITS-ARIN@co.jefferson.co.us
OrgTechRef: https://rdap.arin.net/registry/entity/NETWO3805-ARIN

OrgAbuseHandle: NETWO3805-ARIN
OrgAbuseName: NetworkAdmin
OrgAbusePhone: +1-303-271-8834
OrgAbuseEmail: ITS-ARIN@co.jefferson.co.us
OrgAbuseRef: https://rdap.arin.net/registry/entity/NETWO3805-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

Jeffco.us Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: jeffco.us
Registry Domain ID: D1878362-US
Registrar WHOIS Server:
Registrar URL: www.register.com
Updated Date: 2023-02-13T16:07:03Z
Creation Date: 2002-04-24T17:57:11Z
Registry Expiry Date: 2028-04-23T23:59:59Z
Registrar: Register.com, Inc.
Registrar IANA ID: 9
Registrar Abuse Contact Email: abuse@web.com
Registrar Abuse Contact Phone: +1.8003337680
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: C1255AEC00DA54B4FB329E4F2C6128A01-NSR
Registrant Name: Systems Team
Registrant Organization:
Registrant Street: 3500 ILLINOIS ST STE 2500
Registrant Street: IT SERVICES
Registrant Street:
Registrant City: Golden
Registrant State/Province: CO
Registrant Postal Code: 80401-6022
Registrant Country: US
Registrant Phone: +1.3032718039
Registrant Phone Ext:
Registrant Fax: +1.8886429675
Registrant Fax Ext:
Registrant Email: its-unix@co.jefferson.co.us
Registrant Application Purpose: P5
Registrant Nexus Category: C21
Registry Admin ID: C1255AEC00DA54B4FB329E4F2C6128A01-NSR
Admin Name: Systems Team
Admin Organization:
Admin Street: 3500 ILLINOIS ST STE 2500
Admin Street: IT SERVICES
Admin Street:
Admin City: Golden
Admin State/Province: CO
Admin Postal Code: 80401-6022
Admin Country: US
Admin Phone: +1.3032718039
Admin Phone Ext:
Admin Fax: +1.8886429675
Admin Fax Ext:
Admin Email: its-unix@co.jefferson.co.us
Admin Application Purpose: P5
Admin Nexus Category: C21
Registry Tech ID: CD97C1F8573E248B6868337F9E9BB0E6B-NSR
Tech Name: Domain Registrar
Tech Organization: Registercom
Tech Street: 575 8th Avenue
Tech Street:
Tech Street:
Tech City: New York
Tech State/Province: NY
Tech Postal Code: 10018
Tech Country: US
Tech Phone: +1.9027492701
Tech Phone Ext:
Tech Fax: +1.9027492701
Tech Fax Ext:
Tech Email: domainregistrar@register.com
Tech Application Purpose: P1
Tech Nexus Category: C11
Name Server: dns1.jeffco.us
Name Server: dns2.jeffco.us
Name Server: ns1.f5cloudservices.com
Name Server: ns2.f5cloudservices.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-09-20T17:13:08Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
jeffco.us	199.184.241.62	900

Host	MX Record	Priority	TTL
jeffco.us	cluster6.us.messagelabs.com	10	86400
jeffco.us	cluster6a.us.messagelabs.com	20	86400

Host	NS Record	TTL
jeffco.us	dns1.jeffco.us	86400
jeffco.us	dns2.jeffco.us	86400

Host	TXT Record	TTL
jeffco.us	v=spf1 mx include:_spf.mlsend.com include:spf.protection.outlook.com include:servers.mcsv.net include:spf.messagelabs.com include:_spf.salesforce.com include:mailgun.org -all	3600
jeffco.us	xbWyPvXitPBYdA8X0s1s7a46bPnubZyJQ2q8at8rX+0=	3600
jeffco.us	MS=ms10079852	3600
jeffco.us	YuOuZJpJrG17qnYAzhTjuS+k1nVtvqoVtQOwZG+XghslglApH+dVoG3hVaPkCiD8n7o/8oysz+iKUeIPo1HMwg==	3600

dns1.jeffco.us
TTL: 86400
Email address: its-unix.jeffco.us
Serial: 2019080803
Refresh: 1200
Retry: 3600
Expire: 2419200
Minimum: 86400

Jeffco.us HTML Check

HTML Validation Tool

Errors

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Element “script” must not have attribute “defer” unless attribute “src” is also specified.

Attribute “cp5ph” not allowed on element “input” at this point.

Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

Stray start tag “html”.

End tag for “html” seen, but there were unclosed elements.

Unclosed element “div”.

Unclosed element “ol”.

Unclosed element “aside”.

Stray end tag “div”.

Bad value “button” for attribute “role” on element “header”.

The element “header” must not appear as a descendant of the “footer” element.

Element “style” not allowed as child of element “noscript” in this context. (Suppressing further errors from this subtree.)

The “aria-labelledby” attribute must point to an element in the same document.

Warnings

The “navigation” role is unnecessary for element “nav”.

The “button” role is unnecessary for element “button”.

Empty heading.

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

Jeffco.us Desktop Performance

Last tested: 11/15/2016

Desktop Speed

74%

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Leverage browser caching

Optimize images

Minify CSS

Reduce server response time

Minify JavaScript

Desktop Resource Breakdown

Total Resources	52
Number of Hosts	8
Static Resources	35
JavaScript Resources	9
CSS Resources	6

Jeffco.us Mobile Insights

Last tested: 05/27/2017

Mobile Usability

66%

Use legible font sizes

Size tap targets appropriately

Configure the viewport

Mobile Speed

55%

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Leverage browser caching

Optimize images

Reduce server response time

Minify CSS

Minify JavaScript

Mobile Resource Breakdown

Total Resources	53
Number of Hosts	9
Static Resources	35
JavaScript Resources	9
CSS Resources	6

Jeffco.us Common Typos

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Jeffco.us Jefferson County, CO | Official Website

The home page for Jefferson County Colorado.

Jeffco.us Overview

Jeffco.us Rank Summary

Jeffco.us Website Safety

Jeffco.us Rank History

Jeffco.us Hosting Information

Jeffco.us Domain Registration and Settings

Jeffco.us HTML Check

Jeffco.us Desktop Performance

Jeffco.us Mobile Insights

Jeffco.us Similar Audits

Jeffco.us Common Typos