Tools & Wizards About Us
3o1.co screenshot

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 82% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

3o1.co

3o1.co: Just an other url shortener service

Page Load Speed

948 ms in total

First Response

85 ms

Resources Loaded

770 ms

Page Rendered

93 ms

3o1.co screenshot

About Website

Click here to check amazing 3 O 1 content. Otherwise, check out these important facts you probably never knew about 3o1.co

3o1.co: Just an other url shortener service

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Key Findings

We analyzed 3o1.co page load time and found that the first response time was 85 ms and then it took 863 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

3o1.co performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value1.8 s

98/100

25%

SI (Speed Index)

Value1.3 s

100/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.5 s

100/100

10%

Network Requests Diagram

index.html

85 ms

style.css

80 ms

ga.js

6 ms

spacer.gif

424 ms

logo.png

94 ms

Our browser made a total of 6 requests to load all elements on the main page. We found that 50% of them (3 requests) were addressed to the original 3o1.co, 33% (2 requests) were made to Google-analytics.com and 17% (1 request) were made to B1n.sp1n.me. The less responsive or slowest element that took the longest time to load (424 ms) relates to the external source B1n.sp1n.me.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.6 kB (7%)

Content Size

22.0 kB

After Optimization

20.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 3o1.co main page is 22.0 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. Only 5% of websites need less resources to load. Javascripts take 17.2 kB which makes up the majority of the site volume.

HTML Optimization

-50%

Potential reduce by 905 B

  • Original 1.8 kB
  • After minification 1.8 kB
  • After compression 908 B

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 905 B or 50% of the original size.

Image Optimization

-4%

Potential reduce by 82 B

  • Original 2.1 kB
  • After minification 2.1 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. 3 O 1 images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 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

-59%

Potential reduce by 547 B

  • Original 928 B
  • After minification 805 B
  • After compression 381 B

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. 3o1.co needs all CSS files to be minified and compressed as it can save up to 547 B or 59% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 3 O 1. According to our analytics all requests are already optimized.

Network Requests Diagram

index.html

index.html

85 ms

style.css

style.css

80 ms

ga.js

ga.js

6 ms

spacer.gif

spacer.gif

424 ms

logo.png

logo.png

94 ms

__utm.gif

__utm.gif

12 ms

Accessibility Review

3o1.co accessibility score

93

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

3o1.co 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

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

3o1.co SEO score

77

Search Engine Optimization Advices

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 3o1.co 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 3o1.co 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

3o1.co

Open Graph description is not detected on the main page of 3 O 1. 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: