Jeffco.us Jefferson County, CO | Official Website
The home page for Jefferson County Colorado.
Server IP address resolved: Yes
Http response code: 200
Response time: 0.67 sec.
Last Checked: 02/04/2023
Over the time jeffco.us has been ranked as high as 28,655 in the world, while most of its traffic comes from United States, where it reached as high as 24,701 position.
Jeffco.us receives about 1,804 unique visitors and 6,314 pageviews per day. The estimated value of jeffco.us is 116,800 USD. Each unique visitor makes about 3.5 pageviews on average.
Jeffco.us is registered under .US top-level domain. Check other websites in .US zone.
At the time of the last check (November 22, 2019) jeffco.us has an expired SSL certificate issued by DigiCert Inc (expired on February 14, 2020). Check other websites using SSL certificates issued by DigiCert Inc.
According to Google Safe Browsing, Google Safe Search, Symantec and Web of Trust jeffco.us is quite a safe domain.
Mobile-Friendly test indicates that jeffco.us is well optimized for mobile and tablet devices, however website page loading time could be improved.
Audience Geography. Where are jeffco.us visitors located?
| Country | Rank |
|---|---|
 United States US | 24701 |
| Japan JP | 31954 |
| India IN | 286900 |
| Country | Percent of Pageviews |
|---|---|
| United States US | 84.2% |
| Japan JP | 12.9% |
| India IN | 0.7% |
| Other | 2.2% |
| Country | Percent of Visitors |
|---|---|
| United States US | 71.9% |
| Japan JP | 25.5% |
| India IN | 1% |
| Other | 1.6% |
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?
| 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% |
| 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% |
| Period | Global Rank | Global Rank Delta |
|---|---|---|
| past 3 months | 105262 | -938 |
| past month | 102971 | -2671 |
| past week | 115098 | 16837 |
| yesterday | 203471 | 100726 |
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.
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 ConnectSafe evaluates jeffco.us for any unsafe and insecure content. The results are critical for families with young children.
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.
"jeffco.us" is not a phishing page.
"jeffco.us" does not install unwanted software.
"jeffco.us" does not contain harmfull applications.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
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.
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.
| Domain | jeffco.us |
| Issuer Organization | DigiCert Inc |
| Issuer | GeoTrust TLS RSA CA G1 |
| Algorithm | RSA-SHA256 |
| Valid form | 01/19/2018 |
| Expiration | 02/14/2020 |
| Signed | Certificate is not self signed |
| Additional Domains | jeffco.us www.jeffco.us *.jeffco.us *.admin.co.jeffco.us |
ASN ID: 53529
ASN Title: JCC-ASN - Jefferson County, Colorado, US
Last Update: 10/04/2023
#
# 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.
#
Domain Name: jeffco.us
Registry Domain ID: D1878362-US
Registrar WHOIS Server:
Registrar URL: www.register.com
Updated Date: 2020-06-13T15:09:35Z
Creation Date: 2002-04-24T17:57:11Z
Registry Expiry Date: 2022-04-23T23:59:59Z
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: ItsUnix Jeffco
Registrant Organization: Jefferson County, Colorado
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: ItsUnix Jeffco
Admin Organization: Jefferson County, Colorado
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
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2021-05-03T01:24:12Z
| 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
Last tested: 11/15/2016
| Total Resources | 52 |
| Number of Hosts | 8 |
| Static Resources | 35 |
| JavaScript Resources | 9 |
| CSS Resources | 6 |
Last tested: 05/27/2017
| Total Resources | 53 |
| Number of Hosts | 9 |
| Static Resources | 35 |
| JavaScript Resources | 9 |
| CSS Resources | 6 |
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