Tools & Wizards About Us

Report Summary

  • 67

    Performance

    Renders faster than
    79% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 91% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

learn.onlinegdb.com

GDB online Debugger | Compiler - Code, Compile, Run, Debug online C, C++

Page Load Speed

657 ms in total

First Response

84 ms

Resources Loaded

503 ms

Page Rendered

70 ms

About Website

Visit learn.onlinegdb.com now to see the best up-to-date Learn Online GDB content for India and also check out these interesting facts you probably never knew about learn.onlinegdb.com

Online GDB is online compiler and debugger for C/C++. You can compile, run and debug code with gdb online. Using gcc/g++ as compiler and gdb as debugger. Currently C and C++ languages are supported.

Visit learn.onlinegdb.com

Key Findings

We analyzed Learn.onlinegdb.com page load time and found that the first response time was 84 ms and then it took 573 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

learn.onlinegdb.com performance score

67

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

73/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

54/100

25%

SI (Speed Index)

Value2.4 s

98/100

10%

TBT (Total Blocking Time)

Value400 ms

67/100

30%

CLS (Cumulative Layout Shift)

Value0.186

66/100

15%

TTI (Time to Interactive)

Value5.8 s

67/100

10%

Network Requests Diagram

learn.onlinegdb.com

84 ms

analytics.js

16 ms

css_PXKyJUac5CjOsyl7xA6aCmq51JomRky41Sc9wSdnkNM.css

41 ms

css_ov2F3YDclvAGM3PkM0za7kwRs1MJsDedYr2LSJ41IdE.css

47 ms

carbon.js

42 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 26% of them (8 requests) were addressed to the original Learn.onlinegdb.com, 42% (13 requests) were made to Embed.tawk.to and 16% (5 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (195 ms) relates to the external source Embed.tawk.to.

Page Optimization Overview & Recommendations

Page size can be reduced by 59.3 kB (15%)

Content Size

389.2 kB

After Optimization

329.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Learn.onlinegdb.com main page is 389.2 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. 40% of websites need less resources to load. Javascripts take 258.8 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 10.0 kB

  • Original 13.9 kB
  • After minification 11.3 kB
  • After compression 4.0 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 2.6 kB, which is 19% 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 10.0 kB or 72% of the original size.

Image Optimization

-30%

Potential reduce by 25.3 kB

  • Original 84.7 kB
  • After minification 59.4 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, Learn Online GDB needs image optimization as it can save up to 25.3 kB or 30% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-9%

Potential reduce by 23.8 kB

  • Original 258.8 kB
  • After minification 258.8 kB
  • After compression 235.0 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

-1%

Potential reduce by 194 B

  • Original 31.7 kB
  • After minification 31.7 kB
  • After compression 31.5 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. Learn.onlinegdb.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 17 (68%)

Requests Now

25

After Optimization

8

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Learn Online GDB. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

learn.onlinegdb.com accessibility score

97

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.

Best Practices

learn.onlinegdb.com best practices score

75

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

Page has valid source maps

SEO Factors

learn.onlinegdb.com SEO score

86

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

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 Learn.onlinegdb.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 Learn.onlinegdb.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

Open Graph description is not detected on the main page of Learn Online GDB. 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: