Tools & Wizards About Us
9lessons.info screenshot

Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

9lessons.info

9lessons Programming Blog - Tutorials about Angular, ReactJS, PHP, MySQL and Web Development

Page Load Speed

4.1 sec in total

First Response

34 ms

Resources Loaded

3.3 sec

Page Rendered

793 ms

9lessons.info screenshot

About Website

Visit 9lessons.info now to see the best up-to-date 9 Lessons content for India and also check out these interesting facts you probably never knew about 9lessons.info

Tutorials focused on Web Development, ReactJS, Angular, JavaScript, PHP, Database Design, Ionic, Jquery and MySQL

Visit 9lessons.info

Key Findings

We analyzed 9lessons.info page load time and found that the first response time was 34 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

9lessons.info performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

30/100

25%

SI (Speed Index)

Value16.0 s

0/100

10%

TBT (Total Blocking Time)

Value11,530 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.028

100/100

15%

TTI (Time to Interactive)

Value43.5 s

0/100

10%

Network Requests Diagram

9lessons.info

34 ms

9lessons.info

172 ms

www.9lessons.info

23 ms

www.9lessons.info

99 ms

55013136-widget_css_bundle.css

21 ms

Our browser made a total of 134 requests to load all elements on the main page. We found that 4% of them (6 requests) were addressed to the original 9lessons.info, 11% (15 requests) were made to Youtube.com and 9% (12 requests) were made to Raw.githubusercontent.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Srv.buysellads.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 449.4 kB (15%)

Content Size

2.9 MB

After Optimization

2.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 9lessons.info main page is 2.9 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 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 98.5 kB

  • Original 129.8 kB
  • After minification 129.6 kB
  • After compression 31.3 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 98.5 kB or 76% of the original size.

Image Optimization

-19%

Potential reduce by 294.3 kB

  • Original 1.5 MB
  • After minification 1.3 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. Obviously, 9 Lessons needs image optimization as it can save up to 294.3 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 20.7 kB

  • Original 1.1 MB
  • After minification 1.1 MB
  • After compression 1.1 MB

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

-31%

Potential reduce by 36.0 kB

  • Original 117.3 kB
  • After minification 104.8 kB
  • After compression 81.4 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. 9lessons.info needs all CSS files to be minified and compressed as it can save up to 36.0 kB or 31% of the original size.

Requests Breakdown

Number of requests can be reduced by 67 (56%)

Requests Now

120

After Optimization

53

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 120 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 9 Lessons. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 44 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

9lessons.info

9lessons.info

34 ms

9lessons.info

9lessons.info

172 ms

www.9lessons.info

www.9lessons.info

23 ms

www.9lessons.info

www.9lessons.info

99 ms

55013136-widget_css_bundle.css

55013136-widget_css_bundle.css

21 ms

css

css

57 ms

css

css

60 ms

css

css

59 ms

email-decode.min.js

email-decode.min.js

24 ms

adsbygoogle.js

adsbygoogle.js

299 ms

platform.js

platform.js

53 ms

js

js

197 ms

counter.js

counter.js

58 ms

4290687098-widgets.js

4290687098-widgets.js

29 ms

vedd3670a3b1c4e178fdfb0cc912d969e1713874337387

vedd3670a3b1c4e178fdfb0cc912d969e1713874337387

123 ms

bg.png

bg.png

144 ms

shade.png

shade.png

151 ms

comment.png

comment.png

151 ms

22451426

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251 ms

OauthLoginBanner.gif

OauthLoginBanner.gif

253 ms

eggsmall.png

eggsmall.png

145 ms

authorization.css

authorization.css

60 ms

social_icons.png

social_icons.png

144 ms

TakeMyLook.png

TakeMyLook.png

144 ms

9lessonsLogo.png

9lessonsLogo.png

143 ms

make%2Bin%2Bindia.png

make%2Bin%2Bindia.png

145 ms

bsa.js

bsa.js

230 ms

array.js

array.js

234 ms

videoseries

videoseries

394 ms

videoseries

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561 ms

videoseries

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594 ms

videoseries

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600 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

90 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

220 ms

subscribe_embed

subscribe_embed

551 ms

text.php

text.php

373 ms

cse.js

cse.js

207 ms

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194 ms

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JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCuM73w5aX8.ttf

300 ms

authorization.css

authorization.css

78 ms

main.js

main.js

107 ms

80x15.png

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374 ms

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159 ms

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176 ms

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189 ms

s_ce1cf9e0a1e44bafe65c4664385c08d7.js

s_ce1cf9e0a1e44bafe65c4664385c08d7.js

156 ms

show_ads_impl.js

show_ads_impl.js

355 ms

postmessageRelay

postmessageRelay

173 ms

cse_element__en.js

cse_element__en.js

168 ms

default+en.css

default+en.css

236 ms

default.css

default.css

272 ms

223 ms

125 ms

www-player.css

www-player.css

79 ms

www-embed-player.js

www-embed-player.js

99 ms

base.js

base.js

299 ms

developers.google.com

developers.google.com

817 ms

pocketbase.png

pocketbase.png

256 ms

pro.js

pro.js

16 ms

1357 ms

mailGif.gif

mailGif.gif

140 ms

raspberrypi.png

raspberrypi.png

668 ms

angular.png

angular.png

202 ms

react.png

react.png

516 ms

cypress-automation.png

cypress-automation.png

175 ms

3604799710-postmessagerelay.js

3604799710-postmessagerelay.js

480 ms

rpc:shindig_random.js

rpc:shindig_random.js

112 ms

aws_php_lambda.png

aws_php_lambda.png

725 ms

async-ads.js

async-ads.js

119 ms

branding.png

branding.png

59 ms

www-subscribe-embed_split_v0.css

www-subscribe-embed_split_v0.css

53 ms

www-subscribe-embed_v0.js

www-subscribe-embed_v0.js

58 ms

gitwebhook.png

gitwebhook.png

651 ms

ssh-ubuntu.png

ssh-ubuntu.png

651 ms

recorder.js

recorder.js

649 ms

youtube.jpeg

youtube.jpeg

646 ms

env.png

env.png

646 ms

clear.png

clear.png

49 ms

nav_logo114.png

nav_logo114.png

55 ms

subscribe_button_branded_lozenge.png

subscribe_button_branded_lozenge.png

43 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

492 ms

ad_status.js

ad_status.js

703 ms

jRYISRuM9q7e_xyYaLp_fsq3qnLjbNevd8JDa-bOkpI.js

jRYISRuM9q7e_xyYaLp_fsq3qnLjbNevd8JDa-bOkpI.js

143 ms

embed.js

embed.js

95 ms

uGIjQeXwhFOV38zIECusgExG5shYjRBijR4U6eUsjZLXMWc1Fw4BAetauVOeoj0TiCBL62rKyLE=s68-c-k-c0x00ffffff-no-rj

uGIjQeXwhFOV38zIECusgExG5shYjRBijR4U6eUsjZLXMWc1Fw4BAetauVOeoj0TiCBL62rKyLE=s68-c-k-c0x00ffffff-no-rj

662 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

429 ms

zrt_lookup.html

zrt_lookup.html

431 ms

ads

ads

759 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

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344 ms

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343 ms

ads

ads

657 ms

Create

Create

445 ms

Create

Create

567 ms

Create

Create

569 ms

Create

Create

568 ms

ads

ads

781 ms

id

id

259 ms

small-grey-disclosure-arrow-down.png

small-grey-disclosure-arrow-down.png

44 ms

ads

ads

607 ms

GenerateIT

GenerateIT

207 ms

GenerateIT

GenerateIT

206 ms

3b0c1a1c8750041eb27603629860e89a.js

3b0c1a1c8750041eb27603629860e89a.js

175 ms

load_preloaded_resource.js

load_preloaded_resource.js

185 ms

f11bfab4e3c942216447974439595ef6.js

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185 ms

abg_lite.js

abg_lite.js

218 ms

window_focus.js

window_focus.js

219 ms

qs_click_protection.js

qs_click_protection.js

228 ms

ufs_web_display.js

ufs_web_display.js

79 ms

bbcd6bf18c20baa1b2adeb195de9b551.js

bbcd6bf18c20baa1b2adeb195de9b551.js

201 ms

GenerateIT

GenerateIT

121 ms

GenerateIT

GenerateIT

166 ms

icon.png

icon.png

36 ms

s

s

20 ms

cb=gapi.loaded_2

cb=gapi.loaded_2

117 ms

css

css

40 ms

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border_3.gif

5 ms

subscribe_embed

subscribe_embed

91 ms

spacer.gif

spacer.gif

21 ms

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40 ms

bubbleDropR_3.png

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69 ms

bubbleDropB_3.png

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70 ms

reactive_library.js

reactive_library.js

227 ms

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30 ms

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31 ms

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43 ms

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activeview

activeview

160 ms

ads

ads

312 ms

ads

ads

246 ms

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25 ms

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7 ms

fullscreen_api_adapter.js

fullscreen_api_adapter.js

21 ms

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settings_grey600_24dp.png

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25 ms

Accessibility Review

9lessons.info accessibility score

92

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

9lessons.info best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

9lessons.info SEO score

83

Search Engine Optimization Advices

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 9lessons.info 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 9lessons.info 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

9lessons.info

Open Graph data is detected on the main page of 9 Lessons. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: