openintro.org website information.
openintro.org domain name is registered by .ORG top-level domain registry. See the other sites registred in .ORG domain zone.
No name server records were found.
and probably website openintro.org is hosted by AKAMAI-AS - Akamai Technologies, Inc., US web hosting company. Check the complete list of other most popular websites hosted by AKAMAI-AS - Akamai Technologies, Inc., US hosting company.
According to Alexa traffic rank the highest website openintro.org position was 24602 (in the world). The lowest Alexa rank position was 993466. Now website openintro.org ranked in Alexa database as number 191970 (in the world).
Website openintro.org Desktop speed measurement score (77/100) is better than the results of 63.93% of other sites shows that the page desktop performance can be improved.
openintro.org Mobile usability score (82/100) is better than the results of 26.06% of other sites and means that the page is mobile-friendly.
Mobile speed measurement score of openintro.org (65/100) is better than the results of 66.06% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
Weekly Rank Report
| Date | Rank | Change |
|---|---|---|
| Nov-18-2024 | 191,970 | -4,869 |
| Nov-17-2024 | 187,101 | 9,699 |
| Nov-16-2024 | 196,800 | 149 |
| Nov-15-2024 | 196,949 | 3,280 |
| Nov-14-2024 | 200,229 | -26,883 |
| Nov-13-2024 | 173,346 | 0 |
| Nov-12-2024 | 173,346 | 0 |
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openintro.org Rank History
Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.
openintro.org whois
WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.
Domain Name: openintro.org
Registry Domain ID: 7872da639ab14358a559d74471b6aa37-LROR
Registrar WHOIS Server: whois.squarespace.domains
Registrar URL: https://domains.squarespace.com
Updated Date: 2024-05-18T06:58:09Z
Creation Date: 2009-07-11T19:22:08Z
Registry Expiry Date: 2032-07-11T19:22:08Z
Registrar: Squarespace Domains II LLC
Registrar IANA ID: 895
Registrar Abuse Contact Email: abuse-complaints@squarespace.com
Registrar Abuse Contact Phone: +1.6466935324
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization:
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: MN
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
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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
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Admin Organization: REDACTED FOR PRIVACY
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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
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Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
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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: ns1629.hostgator.com
Name Server: ns1630.hostgator.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-10-21T03:47:35Z
openintro.org server information
Servers Location
| IP Address |
|---|
| Country |
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openintro.org desktop page speed rank
Last tested: 2018-12-09
openintro.org Desktop Speed Test Quick Summary
priority - 10 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 2 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
https://www.openintro.org/pp/plugins/angular.min_1.5.3.js
Optimize CSS Delivery of the following:
https://www.openintro.org/pp/cssGeneral007.css
priority - 9 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 91.7KiB (70% reduction).
Compressing and resizing https://www.openintro.org/img/subjects/statOverview_001.png could save 25.7KiB (71% reduction).
Compressing and resizing https://www.openintro.org/img/brand/oiLogo_highres.png could save 13.1KiB (62% reduction).
Compressing and resizing https://www.openintro.org/img/socialmedia/icons/icons_001.png could save 7.6KiB (41% reduction).
Compressing https://www.openintro.org/img/brand/bg.png could save 6.1KiB (93% reduction).
Compressing https://www.openintro.org/img/grid/whiteBoxTransparentGrid.png could save 742B (90% reduction).
priority - 7 Leverage 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:
https://www.openintro.org/img/brand/oiLogo_highres.png (expiration not specified)
https://www.openintro.org/img/brand/openintro_home…_graphics_20160402.png (expiration not specified)
https://www.openintro.org/img/grid/whiteBoxTransparentGrid.png (expiration not specified)
https://www.openintro.org/img/socialmedia/icons/icons_001.png (expiration not specified)
https://www.openintro.org/img/subjects/statOverview_001.png (expiration not specified)
https://www.openintro.org/img/subjects/statOverview_002.png (expiration not specified)
https://www.openintro.org/pp/css013.css (expiration not specified)
https://www.openintro.org/pp/cssGeneral007.css (expiration not specified)
https://www.openintro.org/pp/plugins/angular.min_1.5.3.js (expiration not specified)
https://www.openintro.org/pp/plugins/dragsort002.js (expiration not specified)
https://www.openintro.org/pp/plugins/jquery_validate_001.js (expiration not specified)
https://www.openintro.org/pp/plugins/jsCore003.js (expiration not specified)
https://use.typekit.net/stg1oei.js (10 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 1 Reduce server response time
In our test, your server responded in 0.25 seconds.
There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.
priority - 0 Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 4.7KiB (28% reduction).
Minifying https://www.openintro.org/pp/plugins/jsCore003.js could save 1.2KiB (33% reduction) after compression.
Minifying https://www.openintro.org/pp/plugins/dragsort002.js could save 534B (18% reduction) after compression.
Minifying https://cdn.mathjax.org/mathjax/latest/MathJax.js?…=TeX-AMS-MML_HTMLorMML could save 208B (30% reduction) after compression.
priority - 0 Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 1.9KiB (24% reduction).
Minifying https://www.openintro.org/pp/cssGeneral007.css could save 899B (31% reduction) after compression.
priority - 0 Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 399B (13% reduction).
openintro.org Desktop Resources
| Total Resources | 35 |
| Number of Hosts | 8 |
| Static Resources | 20 |
| JavaScript Resources | 10 |
| CSS Resources | 2 |
openintro.org Desktop Resource Breakdown
openintro.org mobile page speed rank
Last tested: 2018-12-09
openintro.org Mobile Speed Test Quick Summary
priority - 40 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 2 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
https://www.openintro.org/pp/plugins/angular.min_1.5.3.js
Optimize CSS Delivery of the following:
https://www.openintro.org/pp/cssGeneral007.css
priority - 11 Leverage 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:
https://www.openintro.org/img/brand/oiLogo_highres.png (expiration not specified)
https://www.openintro.org/img/brand/openintro_home…_graphics_20160402.png (expiration not specified)
https://www.openintro.org/img/grid/whiteBoxTransparentGrid.png (expiration not specified)
https://www.openintro.org/img/socialmedia/icons/icons_001.png (expiration not specified)
https://www.openintro.org/img/subjects/statOverview_001.png (expiration not specified)
https://www.openintro.org/img/subjects/statOverview_002.png (expiration not specified)
https://www.openintro.org/pp/css013.css (expiration not specified)
https://www.openintro.org/pp/cssGeneral007.css (expiration not specified)
https://www.openintro.org/pp/plugins/angular.min_1.5.3.js (expiration not specified)
https://www.openintro.org/pp/plugins/dragsort002.js (expiration not specified)
https://www.openintro.org/pp/plugins/jquery_validate_001.js (expiration not specified)
https://www.openintro.org/pp/plugins/jsCore003.js (expiration not specified)
https://use.typekit.net/stg1oei.js (10 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 3 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 32.5KiB (30% reduction).
Compressing https://www.openintro.org/img/subjects/statOverview_001.png could save 5.5KiB (16% reduction).
Compressing https://www.openintro.org/img/brand/oiLogo_highres.png could save 5.2KiB (26% reduction).
Compressing https://www.openintro.org/img/brand/bg_hd.png could save 1.7KiB (46% reduction).
Compressing https://www.openintro.org/img/grid/whiteBoxTransparentGrid.png could save 742B (90% reduction).
priority - 0 Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 4.7KiB (28% reduction).
Minifying https://www.openintro.org/pp/plugins/jsCore003.js could save 1.2KiB (33% reduction) after compression.
Minifying https://www.openintro.org/pp/plugins/dragsort002.js could save 534B (18% reduction) after compression.
Minifying https://cdn.mathjax.org/mathjax/latest/MathJax.js?…=TeX-AMS-MML_HTMLorMML could save 208B (30% reduction) after compression.
priority - 0 Reduce server response time
In our test, your server responded in 0.23 seconds.
There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.
priority - 0 Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 1.9KiB (24% reduction).
Minifying https://www.openintro.org/pp/cssGeneral007.css could save 899B (31% reduction) after compression.
priority - 0 Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 399B (13% reduction).
openintro.org Mobile Resources
| Total Resources | 35 |
| Number of Hosts | 8 |
| Static Resources | 20 |
| JavaScript Resources | 10 |
| CSS Resources | 2 |
openintro.org Mobile Resource Breakdown
openintro.org mobile page usability
Last tested: 2018-12-09
openintro.org Mobile Usability Test Quick Summary
priority - 10 Configure the viewport
Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.
Configure a viewport for this page.
priority - 6 Size 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.
<a href="/index.php" class="oiLogo"></a> is close to 1 other tap targets.<a href="/redirect.php?…rer=/index.php" class="socialMediaIconContainerSmall"></a> and 2 others are close to other tap targets.<a href="/stat" class="mmenu">Products</a> is close to 1 other tap targets.<div id="dot_1" class="panel_control_…control_dot_on"> is close to 3 other tap targets.<div id="dot_2" class="panel_control_dot"> and 1 others are close to other tap targets.priority - 5 Use legible font sizes
The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.
The following text fragments have a small font size. Increase the font size to make them more legible.
CONTRIBUTE and 4 others render only 5 pixels tall (12 CSS pixels).LOG IN renders only 4 pixels tall (11 CSS pixels).IS BEST FOR YO…YOUR STUDENTS. and 1 others render only 5 pixels tall (13 CSS pixels).PRACTICE and 1 others render only 5 pixels tall (12 CSS pixels).Learn statisti…never outgrow and 1 others render only 5 pixels tall (12 CSS pixels).CLICK HERE TO EXPLORE and 1 others render only 4 pixels tall (11 CSS pixels).TERMS renders only 5 pixels tall (12 CSS pixels).openintro.org similar domains
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openintro.org Ping
Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.
openintro.org TRACEROUTE
Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.