Report Summary

  • 80

    Performance

    Renders faster than
    86% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

historytextbooks.org

The American Textbook Council

Page Load Speed

2.1 sec in total

First Response

129 ms

Resources Loaded

1.3 sec

Page Rendered

612 ms

historytextbooks.org screenshot

About Website

Click here to check amazing History Textbook S content. Otherwise, check out these important facts you probably never knew about historytextbooks.org

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Visit historytextbooks.org

Key Findings

We analyzed Historytextbooks.org page load time and found that the first response time was 129 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

historytextbooks.org performance score

80

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

75/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value370 ms

71/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value4.8 s

79/100

10%

Network Requests Diagram

historytextbooks.org

129 ms

historytextbooks.html

499 ms

common-d80d0ea0e8.pack.css

15 ms

dtheme1-bc7243a26e.pack.css

55 ms

vendors-5ca5b034aa.pack.js

92 ms

Our browser made a total of 21 requests to load all elements on the main page. We found that 5% of them (1 request) were addressed to the original Historytextbooks.org, 76% (16 requests) were made to Cretehoteldeals.net and 10% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (530 ms) relates to the external source Cretehoteldeals.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 157.6 kB (56%)

Content Size

279.8 kB

After Optimization

122.2 kB

In fact, the total size of Historytextbooks.org main page is 279.8 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. 30% of websites need less resources to load. HTML takes 120.1 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 103.8 kB

  • Original 120.1 kB
  • After minification 118.8 kB
  • After compression 16.2 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 103.8 kB or 86% of the original size.

Image Optimization

-5%

Potential reduce by 4.1 kB

  • Original 74.9 kB
  • After minification 70.8 kB

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. History Textbook S images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 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

-73%

Potential reduce by 49.6 kB

  • Original 67.6 kB
  • After minification 67.6 kB
  • After compression 18.0 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. Historytextbooks.org needs all CSS files to be minified and compressed as it can save up to 49.6 kB or 73% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (26%)

Requests Now

19

After Optimization

14

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of History Textbook S. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

historytextbooks.org accessibility score

70

Accessibility Issues

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

Buttons do not have an accessible name

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.

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>).

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

historytextbooks.org best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

historytextbooks.org SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

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 Historytextbooks.org 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 Historytextbooks.org 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 History Textbook S. 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: