Tools & Wizards About Us
grestudybooks.com screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

grestudybooks.com

Used Books Price Comparison | Find Used Books in the USA

Page Load Speed

1.3 sec in total

First Response

80 ms

Resources Loaded

987 ms

Page Rendered

258 ms

grestudybooks.com screenshot

About Website

Welcome to grestudybooks.com homepage info - get ready to check Grestudy Books best content right away, or after learning these important things about grestudybooks.com

Used, secondhand, rare, and out-of-print books available to buy in the US. Search, browse and buy from thousands of book dealers.

Visit grestudybooks.com

Key Findings

We analyzed Grestudybooks.com page load time and found that the first response time was 80 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

grestudybooks.com performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

16/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

8/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value1,390 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.1 s

51/100

10%

Network Requests Diagram

grestudybooks.com

80 ms

322 ms

j.php

90 ms

style.css

58 ms

moztheme2011.css

80 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Grestudybooks.com, 80% (43 requests) were made to Usedbooksearch.net and 4% (2 requests) were made to Dev.visualwebsiteoptimizer.com. The less responsive or slowest element that took the longest time to load (436 ms) relates to the external source Usedbooksearch.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 166.9 kB (77%)

Content Size

215.6 kB

After Optimization

48.8 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Grestudybooks.com main page is 215.6 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. 60% of websites need less resources to load. Images take 145.4 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 39.2 kB

  • Original 51.7 kB
  • After minification 48.9 kB
  • After compression 12.5 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 39.2 kB or 76% of the original size.

Image Optimization

-88%

Potential reduce by 127.7 kB

  • Original 145.4 kB
  • After minification 17.7 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. Obviously, Grestudy Books needs image optimization as it can save up to 127.7 kB or 88% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 57 B

  • Original 18.5 kB
  • After minification 18.5 kB
  • After compression 18.5 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.

Requests Breakdown

Number of requests can be reduced by 36 (77%)

Requests Now

47

After Optimization

11

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Grestudy 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 21 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

grestudybooks.com

grestudybooks.com

80 ms

322 ms

j.php

j.php

90 ms

style.css

style.css

58 ms

moztheme2011.css

moztheme2011.css

80 ms

all.min.css

all.min.css

113 ms

v4-shims.min.css

v4-shims.min.css

109 ms

cnss.css

cnss.css

143 ms

style.min.css

style.min.css

145 ms

flag-icon.min.css

flag-icon.min.css

137 ms

block.styles.css

block.styles.css

135 ms

style.css

style.css

133 ms

frontend.css

frontend.css

142 ms

frontend.css

frontend.css

172 ms

style.css

style.css

173 ms

dashicons.min.css

dashicons.min.css

181 ms

blocks.css

blocks.css

170 ms

jquery.min.js

jquery.min.js

193 ms

jquery-migrate.min.js

jquery-migrate.min.js

177 ms

include.js

include.js

189 ms

cnss.js

cnss.js

191 ms

frontend.js

frontend.js

190 ms

jsapi

jsapi

65 ms

amazon_linker.min.js

amazon_linker.min.js

189 ms

shailan-dropdown.min.css

shailan-dropdown.min.css

265 ms

color-scheme.css

color-scheme.css

266 ms

jquery.js

jquery.js

274 ms

jquery-1.8.2.js

jquery-1.8.2.js

270 ms

jquery.form.js

jquery.form.js

267 ms

jquery.blockUI.js

jquery.blockUI.js

267 ms

jquery.fancybox.css

jquery.fancybox.css

268 ms

jquery.fancybox.pack.js

jquery.fancybox.pack.js

345 ms

hoverIntent.min.js

hoverIntent.min.js

344 ms

core.min.js

core.min.js

344 ms

mouse.min.js

mouse.min.js

343 ms

sortable.min.js

sortable.min.js

436 ms

comment-reply.min.js

comment-reply.min.js

409 ms

maxmegamenu.js

maxmegamenu.js

412 ms

lazyload.min.js

lazyload.min.js

409 ms

loader.js

loader.js

67 ms

local-ga.js

local-ga.js

388 ms

v.gif

v.gif

16 ms

used-books-online.png

used-books-online.png

66 ms

header_writters1.png

header_writters1.png

141 ms

us.svg

us.svg

63 ms

ca.svg

ca.svg

64 ms

gb.svg

gb.svg

65 ms

es.svg

es.svg

67 ms

cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff

cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff

77 ms

DXI1ORHCpsQm3Vp6mXoaTXhCUOGz7vYGh680lGh-uXM.woff

DXI1ORHCpsQm3Vp6mXoaTXhCUOGz7vYGh680lGh-uXM.woff

85 ms

collect

collect

42 ms

1364465614_facebook.png

1364465614_facebook.png

11 ms

1364465637_twitter.png

1364465637_twitter.png

10 ms

shutdown

shutdown

9 ms

Accessibility Review

grestudybooks.com accessibility score

74

Accessibility Issues

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.

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

Form elements do not have associated labels

High

Links do not have a discernible name

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

grestudybooks.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

grestudybooks.com SEO score

91

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

Image elements do not have [alt] attributes

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

High

Tap targets are not sized appropriately

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 Grestudybooks.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 Grestudybooks.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

grestudybooks.com

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