Access sourcing-lab.com.

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value11.2 s

0/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value1,620 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.074

95/100

15%

TTI (Time to Interactive)

Value14.6 s

8/100

10%

sourcing-lab.com

999 ms

fbevents.js

37 ms

js

81 ms

lazyload.min.js

260 ms

663df330873f8d3b151e989937deaceb.js

1463 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 40% of them (32 requests) were addressed to the original Sourcing-lab.com, 53% (42 requests) were made to Fonts.gstatic.com and 3% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (7.3 sec) belongs to the original domain Sourcing-lab.com.

Content Size

7.4 MB

After Optimization

5.6 MB

In fact, the total size of Sourcing-lab.com main page is 7.4 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. 70% of websites need less resources to load. Images take 7.3 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 115.2 kB

Original 136.8 kB
After minification 136.7 kB
After compression 21.6 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 115.2 kB or 84% of the original size.

Image Optimization

-23%

Potential reduce by 1.7 MB

Original 7.3 MB
After minification 5.6 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, Sourcing Lab needs image optimization as it can save up to 1.7 MB or 23% 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 50 B

Original 21.0 kB
After minification 21.0 kB
After compression 20.9 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 Now

After Optimization

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sourcing Lab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts 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

Document doesn't have a <title> element

High

Links do not have a discernible name

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

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

Document doesn't have a <title> element

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 Sourcing-lab.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 Sourcing-lab.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

sourcing-lab.com

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

Report Summary

Performance

Accessibility

Best Practices

SEO

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)

Network Requests Diagram

sourcing-lab.com

fbevents.js

js

lazyload.min.js

663df330873f8d3b151e989937deaceb.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

sourcing-lab.com

fbevents.js

js

lazyload.min.js

663df330873f8d3b151e989937deaceb.js

KakaoTalk_Photo_2019-09-27-12-22-23-3-scaled.jpg

14743c02eaa9138237fb03e53b31d88b.css

css

js

analytics.js

collect

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eicons.woff

SL-Logo-03042020-300x157.png

red-earth-1024x1024.jpg

KakaoTalk_20210214_232244146.png