2 sec in total
227 ms
1.7 sec
107 ms
Click here to check amazing ISBN Search content for United States. Otherwise, check out these important facts you probably never knew about isbnsearch.org
Find books easily using ISBN, title, or author searches. Search using ISBN-10 or ISBN-13.
Visit isbnsearch.orgWe analyzed Isbnsearch.org page load time and found that the first response time was 227 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
isbnsearch.org performance score
name
value
score
weighting
Value1.2 s
99/100
10%
Value2.3 s
92/100
25%
Value1.2 s
100/100
10%
Value30 ms
100/100
30%
Value0.033
100/100
15%
Value2.8 s
97/100
10%
227 ms
1468 ms
103 ms
79 ms
129 ms
Our browser made a total of 10 requests to load all elements on the main page. We found that 70% of them (7 requests) were addressed to the original Isbnsearch.org, 20% (2 requests) were made to Google-analytics.com and 10% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Isbnsearch.org.
Page size can be reduced by 8.5 kB (26%)
33.1 kB
24.6 kB
In fact, the total size of Isbnsearch.org main page is 33.1 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only 10% of websites need less resources to load. Javascripts take 18.3 kB which makes up the majority of the site volume.
Potential reduce by 1.5 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 1.5 kB or 55% of the original size.
Potential reduce by 544 B
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, ISBN Search needs image optimization as it can save up to 544 B or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 779 B
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.
Potential reduce by 5.7 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Isbnsearch.org needs all CSS files to be minified and compressed as it can save up to 5.7 kB or 80% of the original size.
We found no issues to fix!
8
8
The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ISBN Search. According to our analytics all requests are already optimized.
isbnsearch.org
227 ms
www.isbnsearch.org
1468 ms
style.css
103 ms
jquery.min.js
79 ms
tinyTips.js
129 ms
ga.js
26 ms
search.png
59 ms
search-button.gif
66 ms
sample-isbn.png
92 ms
__utm.gif
11 ms
isbnsearch.org accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
isbnsearch.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
isbnsearch.org SEO score
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
EN
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Isbnsearch.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Isbnsearch.org main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
isbnsearch.org
Open Graph description is not detected on the main page of ISBN Search. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: