JEPSEN.IO Distributed Systems Safety Research

jepsen.io Website Information

Daily Unique Visits: 4,507

Daily Page Views: 18,028

Income Per Day: $50

Estimated Value: $27,000

jepsen.io is registered under .IO top-level domain. Please check other sites in .IO zone.

No name server records were found.

and is probably hosted by FLY - Fly.io, Inc., US. See the full list of other websites hosted by FLY - Fly.io, Inc., US.

The highest website jepsen.io position in Alexa rank database was 50806 and the lowest rank position was 997341. Current position of jepsen.io in Alexa rank database is 278449.

Desktop speed score of jepsen.io (93/100) is better than the results of 91.83% of other sites and shows that the page is performing great on desktop computers.

Mobile usability score of jepsen.io (94/100) is better than the results of 36.81% of other sites and means that the page is mobile-friendly.

Mobile speed score of jepsen.io (82/100) is better than the results of 89.15% of other sites and shows that the landing page performance on mobile devices is excellent.

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jepsen.io Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.


jepsen.io whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.


Domain Name: jepsen.io
Registry Domain ID: 21d1138e0a564e659551cc7a801b255b-DONUTS
Registrar WHOIS Server: whois.gandi.net
Registrar URL: https://www.gandi.net
Updated Date: 2021-11-19T10:01:25Z
Creation Date: 2014-07-26T18:24:10Z
Registry Expiry Date: 2022-07-26T18:24:10Z
Registrar: Gandi SAS
Registrar IANA ID: 81
Registrar Abuse Contact Email: abuse@support.gandi.net
Registrar Abuse Contact Phone: +33.170377661
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization: Kyle Kingsbury
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: Paris
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: FR
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: a.dns.gandi.net
Name Server: b.dns.gandi.net
Name Server: c.dns.gandi.net
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2022-03-15T16:15:45Z

jepsen.io server information

Servers Location

jepsen.io desktop page speed rank

Last tested: 2017-10-15


Desktop Speed Good
93/100

jepsen.io Desktop Speed Test Quick Summary


priority - 4Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 3 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

http://jepsen.io/css/reset.css
http://jepsen.io/css/base.css
http://jepsen.io/css/grid.css

priority - 2Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

http://jepsen.io/css/base.css (10 minutes)
http://jepsen.io/css/grid.css (10 minutes)
http://jepsen.io/css/reset.css (10 minutes)
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

jepsen.io Desktop Resource Breakdown

Total Resources18
Number of Hosts8
Static Resources9
JavaScript Resources6
CSS Resources4

jepsen.io mobile page speed rank

Last tested: 2017-05-01


Mobile Speed Medium
82/100

jepsen.io Mobile Speed Test Quick Summary


priority - 16Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 3 blocking CSS resources. This causes a delay in rendering your page.

Optimize CSS Delivery of the following:

http://jepsen.io/css/reset.css
http://jepsen.io/css/base.css
http://jepsen.io/css/grid.css

priority - 4Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

http://jepsen.io/css/base.css (10 minutes)
http://jepsen.io/css/grid.css (10 minutes)
http://jepsen.io/css/reset.css (10 minutes)
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://www.google-analytics.com/analytics.js (2 hours)

jepsen.io Mobile Resource Breakdown

Total Resources20
Number of Hosts10
Static Resources10
JavaScript Resources6
CSS Resources4

jepsen.io mobile page usability

Last tested: 2017-05-01


Mobile Usability Good
94/100

jepsen.io Mobile Usability Test Quick Summary


priority - 3Size content to viewport

The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.

The page content is 7,060 CSS pixels wide, but the viewport is only 412 CSS pixels wide. The following elements fall outside the viewport:

The element <div class="bar">JEPSEN</div> falls outside the viewport.

priority - 2Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <a href="https://github…m/aphyr/jepsen">software library</a> and 5 others are close to other tap targets.

The tap target <a href="https://evergr…10_28_14_33_06">CI system</a> and 1 others are close to other tap targets.

jepsen.io HTML validation

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

Line: 5 Column: 5 - 140
"...css"> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0, target-densitydpi=device-dpi"> <..."

Errors

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

Line: 29 Column: 7 - 202
"...r"> <iframe width="560" height="315" src="https://www.youtube.com/embed/tRc0O9VgzB0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen=""></ifra..."

Attribute “markdown” not allowed on element “div” at this point.

Line: 33 Column: 1 - 40
"...v> </div> <div class="section group" markdown="1"> <div ..." Line: 34 Column: 1 - 43
"...down="1"> <div class="col span_6_of_12" markdown="1"> <h2><..." Line: 59 Column: 1 - 43
"...l> </div> <div class="col span_6_of_12" markdown="1"> <h2><..."

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jepsen.io Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.


jepsen.io TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.