Tools & Wizards About Us
redbook.cc screenshot

Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

redbook.cc

LNMP一键安装包 by Licess

Page Load Speed

5.9 sec in total

First Response

276 ms

Resources Loaded

4.8 sec

Page Rendered

837 ms

redbook.cc screenshot

About Website

Click here to check amazing Redbook content. Otherwise, check out these important facts you probably never knew about redbook.cc

您已成功安装LNMP一键安装包！

Visit redbook.cc

Key Findings

We analyzed Redbook.cc page load time and found that the first response time was 276 ms and then it took 5.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

redbook.cc performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

73/100

10%

LCP (Largest Contentful Paint)

Value7.0 s

6/100

25%

SI (Speed Index)

Value10.2 s

8/100

10%

TBT (Total Blocking Time)

Value380 ms

70/100

30%

CLS (Cumulative Layout Shift)

Value0.02

100/100

15%

TTI (Time to Interactive)

Value9.7 s

29/100

10%

Network Requests Diagram

redbook.cc

276 ms

redbook.cc

738 ms

bootstrap.css

37 ms

typeahead.min.css

83 ms

typeahead-kv.min.css

82 ms

Our browser made a total of 104 requests to load all elements on the main page. We found that 93% of them (97 requests) were addressed to the original Redbook.cc, 3% (3 requests) were made to Secure.trust-provider.com and 2% (2 requests) were made to Widget-v4.tidiochat.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Redbook.cc.

Page Optimization Overview & Recommendations

Page size can be reduced by 554.0 kB (18%)

Content Size

3.0 MB

After Optimization

2.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Redbook.cc main page is 3.0 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.1 MB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 411.3 kB

  • Original 451.7 kB
  • After minification 289.6 kB
  • After compression 40.4 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. This page needs HTML code to be minified as it can gain 162.1 kB, which is 36% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 411.3 kB or 91% of the original size.

Image Optimization

-3%

Potential reduce by 56.1 kB

  • Original 2.1 MB
  • After minification 2.0 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. Redbook images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 56.6 kB

  • Original 327.1 kB
  • After minification 327.1 kB
  • After compression 270.5 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 56.6 kB or 17% of the original size.

CSS Optimization

-25%

Potential reduce by 29.9 kB

  • Original 119.7 kB
  • After minification 117.7 kB
  • After compression 89.8 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. Redbook.cc needs all CSS files to be minified and compressed as it can save up to 29.9 kB or 25% of the original size.

Requests Breakdown

Number of requests can be reduced by 37 (37%)

Requests Now

101

After Optimization

64

  • Images
  • JavaScript
  • CSS

The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Redbook. 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 22 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

redbook.cc

redbook.cc

276 ms

redbook.cc

redbook.cc

738 ms

bootstrap.css

bootstrap.css

37 ms

typeahead.min.css

typeahead.min.css

83 ms

typeahead-kv.min.css

typeahead-kv.min.css

82 ms

kv-widgets.min.css

kv-widgets.min.css

84 ms

loader.css

loader.css

80 ms

loader.js

loader.js

80 ms

bootstrap.min.css

bootstrap.min.css

77 ms

plugins.css

plugins.css

432 ms

apexcharts.css

apexcharts.css

82 ms

dash_2.css

dash_2.css

235 ms

miscellaneous.css

miscellaneous.css

234 ms

breadcrumb.css

breadcrumb.css

219 ms

cookiealert.css

cookiealert.css

218 ms

scrollspyNav.css

scrollspyNav.css

221 ms

custom-carousel.css

custom-carousel.css

229 ms

jquery-jvectormap-2.0.3.css

jquery-jvectormap-2.0.3.css

228 ms

flags32-iso-3166-1-alpha-2.css

flags32-iso-3166-1-alpha-2.css

232 ms

modules-widgets.css

modules-widgets.css

250 ms

flags16-iso-3166-1-alpha-2.css

flags16-iso-3166-1-alpha-2.css

230 ms

js

js

297 ms

jquery.js

jquery.js

248 ms

popper.min.js

popper.min.js

246 ms

bootstrap.min.js

bootstrap.min.js

294 ms

perfect-scrollbar.min.js

perfect-scrollbar.min.js

249 ms

app.js

app.js

250 ms

custom.js

custom.js

249 ms

cookiealert.js

cookiealert.js

249 ms

apexcharts.min.js

apexcharts.min.js

293 ms

yii.js

yii.js

291 ms

typeahead.bundle.min.js

typeahead.bundle.min.js

265 ms

typeahead-kv.min.js

typeahead-kv.min.js

292 ms

handlebars.min.js

handlebars.min.js

293 ms

kv-widgets.min.js

kv-widgets.min.js

295 ms

rb-glogo-mid-en.png

rb-glogo-mid-en.png

139 ms

btn-app-dl.png

btn-app-dl.png

131 ms

en.png

en.png

130 ms

us.png

us.png

121 ms

cn.png

cn.png

132 ms

me.jpg

me.jpg

841 ms

me.png

me.png

598 ms

jp.jpg

jp.jpg

811 ms

jp.png

jp.png

121 ms

lc.jpg

lc.jpg

156 ms

lc.png

lc.png

160 ms

tr.jpg

tr.jpg

711 ms

tr.png

tr.png

584 ms

ch.jpg

ch.jpg

785 ms

ch.png

ch.png

1036 ms

fr.jpg

fr.jpg

593 ms

fr.png

fr.png

612 ms

sg.jpg

sg.jpg

1178 ms

sg.png

sg.png

1158 ms

de.jpg

de.jpg

1369 ms

de.png

de.png

1234 ms

af.jpg

af.jpg

791 ms

af.png

af.png

800 ms

by.jpg

by.jpg

1369 ms

by.png

by.png

1471 ms

ad600x300-premium.jpg

ad600x300-premium.jpg

1143 ms

tw.png

tw.png

1631 ms

mr.png

mr.png

1612 ms

bj.png

bj.png

1634 ms

ki.png

ki.png

1770 ms

sr.png

sr.png

1806 ms

cv.png

cv.png

1889 ms

tm.png

tm.png

2043 ms

sv.png

sv.png

2051 ms

iq.png

iq.png

2085 ms

ge.png

ge.png

2229 ms

gd.png

gd.png

2264 ms

bg.png

bg.png

2536 ms

tg.png

tg.png

2537 ms

mk.png

mk.png

2531 ms

uy.png

uy.png

2538 ms

ke.png

ke.png

2178 ms

so.png

so.png

2671 ms

9s1smboduzbz8p6laudxvractek9tpdu.js

9s1smboduzbz8p6laudxvractek9tpdu.js

168 ms

main.css

main.css

2175 ms

render.5ebf9a594610a33e649a.js

render.5ebf9a594610a33e649a.js

19 ms

perfect-scrollbar.css

perfect-scrollbar.css

1817 ms

structure.css

structure.css

1810 ms

monokai-sublime.css

monokai-sublime.css

1814 ms

ad.png

ad.png

2284 ms

hn.png

hn.png

2239 ms

kn.png

kn.png

2282 ms

na.png

na.png

2305 ms

vc.png

vc.png

2299 ms

ba.png

ba.png

2537 ms

cd.png

cd.png

2094 ms

va.png

va.png

2554 ms

gh.png

gh.png

2422 ms

gw.png

gw.png

2410 ms

banner-gpi2020.jpg

banner-gpi2020.jpg

1917 ms

ad728x90-gopremium.jpg

ad728x90-gopremium.jpg

1871 ms

ad240x400-2.jpg

ad240x400-2.jpg

1735 ms

rc-glogo-w-mid.png

rc-glogo-w-mid.png

1721 ms

fantaasia-logo3.png

fantaasia-logo3.png

1624 ms

trustlogo.js

trustlogo.js

780 ms

flags16.png

flags16.png

658 ms

positivessl_trust_seal_sm_124x32.png

positivessl_trust_seal_sm_124x32.png

326 ms

seal_bg.gif

seal_bg.gif

325 ms

warranty_level.gif

warranty_level.gif

324 ms

Accessibility Review

redbook.cc accessibility score

82

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

redbook.cc 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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

redbook.cc SEO score

77

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 doesn't use 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 Redbook.cc 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 Redbook.cc 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

redbook.cc

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