Report Summary

  • 12

    Performance

    Renders faster than
    25% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

benthambooks.com

Bentham Books - Bentham Science Publishers

Page Load Speed

13.3 sec in total

First Response

185 ms

Resources Loaded

12.1 sec

Page Rendered

1.1 sec

benthambooks.com screenshot

About Website

Click here to check amazing Bentham Books content. Otherwise, check out these important facts you probably never knew about benthambooks.com

Bentham Science publishes Books in all areas of Science, Technology, Medicine, including Agriculture, Chemistry, Computer & Information Sciences, Earth & Environmental Sciences, Engineering & Technolo...

Visit benthambooks.com

Key Findings

We analyzed Benthambooks.com page load time and found that the first response time was 185 ms and then it took 13.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

benthambooks.com performance score

12

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value19.3 s

0/100

10%

TBT (Total Blocking Time)

Value4,200 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.295

40/100

15%

TTI (Time to Interactive)

Value119.0 s

0/100

10%

Network Requests Diagram

benthambooks.com

185 ms

benthambooks.com

6171 ms

plugins.css

455 ms

main.css

483 ms

jquery.min.js

326 ms

Our browser made a total of 702 requests to load all elements on the main page. We found that 85% of them (598 requests) were addressed to the original Benthambooks.com, 14% (100 requests) were made to Fonts.gstatic.com and 0% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (6.2 sec) belongs to the original domain Benthambooks.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.0 MB (6%)

Content Size

63.1 MB

After Optimization

59.1 MB

In fact, the total size of Benthambooks.com main page is 63.1 MB. 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 a small number of websites need less resources to load. Images take 62.0 MB which makes up the majority of the site volume.

HTML Optimization

-93%

Potential reduce by 788.0 kB

  • Original 844.6 kB
  • After minification 759.2 kB
  • After compression 56.6 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 788.0 kB or 93% of the original size.

Image Optimization

-5%

Potential reduce by 3.2 MB

  • Original 62.0 MB
  • After minification 58.8 MB

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. Bentham Books images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 49 B

  • Original 122.3 kB
  • After minification 122.3 kB
  • After compression 122.3 kB

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.

CSS Optimization

-13%

Potential reduce by 15.7 kB

  • Original 120.1 kB
  • After minification 120.1 kB
  • After compression 104.4 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. Benthambooks.com needs all CSS files to be minified and compressed as it can save up to 15.7 kB or 13% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (1%)

Requests Now

591

After Optimization

583

The browser has sent 591 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bentham Books. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

benthambooks.com accessibility score

72

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a valid value for its [lang] attribute.

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

benthambooks.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

benthambooks.com SEO score

77

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Benthambooks.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Benthambooks.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

Open Graph description is not detected on the main page of Bentham Books. 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: