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Report Summary

About Website

Visit jeffcooperbooks.com now to see the best up-to-date Jeffcooperbooks content and also check out these interesting facts you probably never knew about jeffcooperbooks.com

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name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

95/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value4.9 s

65/100

10%

TBT (Total Blocking Time)

Value1,580 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.062

97/100

15%

TTI (Time to Interactive)

Value9.9 s

27/100

10%

jeffcooperbooks.com

266 ms

global.js

35 ms

preloads.js

76 ms

load_feature-eff2497f10d71bbcd02c4372efd22f3c7d74ed699a57073ccf912bd23cecacf4.js

32 ms

storefront-80e528be853eac23af2454534897ca9536b1d3d04aa043b042f34879a3c111c8.js

47 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 99% of them (70 requests) were addressed to the original Jeffcooperbooks.com, 1% (1 request) were made to Cdn.shopify.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Jeffcooperbooks.com.

Content Size

4.2 MB

After Optimization

4.1 MB

In fact, the total size of Jeffcooperbooks.com main page is 4.2 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. 50% of websites need less resources to load. Images take 3.9 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 174.8 kB

Original 208.3 kB
After minification 191.7 kB
After compression 33.5 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 174.8 kB or 84% of the original size.

Image Optimization

-0%

Potential reduce by 6.2 kB

Original 3.9 MB
After minification 3.9 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. Jeffcooperbooks images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 213 B

Original 105.3 kB
After minification 105.3 kB
After compression 105.1 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

-9%

Potential reduce by 2.6 kB

Original 29.9 kB
After minification 29.9 kB
After compression 27.4 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. Jeffcooperbooks.com has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jeffcooperbooks. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 27 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

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

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.

High

Image elements do not have [alt] attributes

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Image elements do not have [alt] attributes

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/).

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 Jeffcooperbooks.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 Jeffcooperbooks.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

jeffcooperbooks.com

Open Graph data is detected on the main page of Jeffcooperbooks. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

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Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)