pressbooks.pub Website Information
Daily Unique Visits: 237,288
Daily Page Views: 1,898,304
Income Per Day: $1,898
Estimated Value: $2,049,840
pressbooks.pub is registered under .PUB top-level domain. Please check other sites in .PUB zone.
No name server records were found.
and is probably hosted by AMAZON-02 - Amazon.com, Inc., US. See the full list of other websites hosted by AMAZON-02 - Amazon.com, Inc., US.
The highest website pressbooks.pub position in Alexa rank database was 6385 and the lowest rank position was 997377. Current position of pressbooks.pub in Alexa rank database is 6422.
Desktop speed score of pressbooks.pub (90/100) is better than the results of 88.96% of other sites and shows that the page is performing great on desktop computers.
Mobile usability score of pressbooks.pub (100/100) is better than the results of 100% of other sites and means that the page is mobile-friendly.
Mobile speed score of pressbooks.pub (74/100) is better than the results of 83.2% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
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pressbooks.pub 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.
pressbooks.pub 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.
pressbooks.pub server information
Servers Location
pressbooks.pub desktop page speed rank
Last tested: 2018-05-13
pressbooks.pub Desktop Speed Test Quick Summary
priority - 8Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 2 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://pressbooks.org/wp/wp-includes/js/jquery/jq…grate.min.js?ver=1.4.1
Optimize CSS Delivery of the following:
https://pressbooks.org/app/plugins/wp-anchor-heade…d-header.css?ver=0.2.3
https://fonts.googleapis.com/css?family=Merriweath…bset=latin%2Clatin-ext
https://pressbooks.org/app/themes/twentysixteen/ge…nericons.css?ver=3.4.1
https://pressbooks.org/app/themes/twentysixteen/style.css?ver=4.9.4
https://fonts.googleapis.com/css?family=Karla|Spectral
priority - 1Leverage 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://pressbooks.org/app/uploads/2017/09/pb.svg (expiration not specified)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 0Minify 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 2.8KiB (22% reduction).
priority - 0Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 1.2KiB (29% reduction).
priority - 0Minify 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 864B (34% reduction).
Minifying https://pressbooks.org/app/themes/twentysixteen/js…us-fix.js?ver=20160816 could save 250B (43% reduction) after compression.
pressbooks.pub Desktop Resource Breakdown
| Total Resources | 23 |
| Number of Hosts | 5 |
| Static Resources | 5 |
| JavaScript Resources | 7 |
| CSS Resources | 6 |
pressbooks.pub mobile page speed rank
Last tested: 2018-05-13
pressbooks.pub Mobile Speed Test Quick Summary
priority - 32Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 2 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.
Remove render-blocking JavaScript:
https://pressbooks.org/wp/wp-includes/js/jquery/jq…grate.min.js?ver=1.4.1
Optimize CSS Delivery of the following:
https://pressbooks.org/app/plugins/wp-anchor-heade…d-header.css?ver=0.2.3
https://fonts.googleapis.com/css?family=Merriweath…bset=latin%2Clatin-ext
https://pressbooks.org/app/themes/twentysixteen/ge…nericons.css?ver=3.4.1
https://pressbooks.org/app/themes/twentysixteen/style.css?ver=4.9.4
https://fonts.googleapis.com/css?family=Karla|Spectral
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:
https://pressbooks.org/app/uploads/2017/09/pb.svg (expiration not specified)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 0Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 3.4KiB (29% reduction).
priority - 0Minify 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 2.8KiB (22% reduction).
priority - 0Minify 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 864B (34% reduction).
Minifying https://pressbooks.org/app/themes/twentysixteen/js…us-fix.js?ver=20160816 could save 250B (43% reduction) after compression.
pressbooks.pub Mobile Resource Breakdown
| Total Resources | 23 |
| Number of Hosts | 5 |
| Static Resources | 5 |
| JavaScript Resources | 7 |
| CSS Resources | 6 |
pressbooks.pub mobile page usability
Last tested: 2018-05-13
pressbooks.pub HTML validation
Errors
Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.
"...</script> <link rel='https://api.w.org/' href='https://pressbooks.org/wp-json/' /> <link..."
The “itemprop” attribute was specified, but the element is not a property of any item.
"...ng"> <a href="https://pressbooks.org/" class="custom-logo-link" rel="home" itemprop="url"><img w..." Line: 224 Column: 91 - 527
"...rop="url"><img width="100" height="100" src="https://pressbooks.org/app/uploads/2016/09/cropped-pressbooks-e1475094362414-1-e1506352861267.png" class="custom-logo" alt="Pressbooks" itemprop="logo" srcset="https://pressbooks.org/app/uploads/2016/09/cropped-pressbooks-e1475094362414-1-e1506352861267.png 100w, https://pressbooks.org/app/uploads/2016/09/cropped-pressbooks-e1475094362414-1-150x150.png 150w" sizes="(max-width: 100px) 85vw, 100px" /></a> ..."
Warnings
The “banner” role is unnecessary for element “header”.
"...nt</a> <header id="masthead" class="site-header" role="banner"> <d..."
The “navigation” role is unnecessary for element “nav”.
"... <nav id="site-navigation" class="main-navigation" role="navigation" aria-label="Primary Menu"> ..." Line: 241 Column: 14 - 116
"... <nav id="social-navigation" class="social-navigation" role="navigation" aria-label="Social Links Menu"> ..." Line: 289 Column: 8 - 87
"..."> <nav class="main-navigation" role="navigation" aria-label="Footer Primary Menu"> ..." Line: 298 Column: 8 - 94
"... <nav class="social-navigation" role="navigation" aria-label="Footer Social Links Menu"> ..."
The “main” role is unnecessary for element “main”.
"...t-area"> <main id="main" class="site-main" role="main"> <a..."
The “contentinfo” role is unnecessary for element “footer”.
"...nt --> <footer id="colophon" class="site-footer" role="contentinfo"> ..."
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pressbooks.pub 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.
pressbooks.pub 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.