Report Summary

  • 85

    Performance

    Renders faster than
    89% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

retro-doc.com

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Page Load Speed

4.3 sec in total

First Response

792 ms

Resources Loaded

2.4 sec

Page Rendered

1.1 sec

retro-doc.com screenshot

About Website

Welcome to retro-doc.com homepage info - get ready to check Retro Doc best content right away, or after learning these important things about retro-doc.com

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Visit retro-doc.com

Key Findings

We analyzed Retro-doc.com page load time and found that the first response time was 792 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

retro-doc.com performance score

85

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.713

7/100

15%

TTI (Time to Interactive)

Value2.1 s

99/100

10%

Network Requests Diagram

retro-doc.com

792 ms

1585734606_0696ba5753584199599c13d93ed211a2.css

300 ms

1585734606_0696ba5753584199599c13d93ed211a2.js

734 ms

german.png

189 ms

english.png

187 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that all of those requests were addressed to Retro-doc.com and no external sources were called. The less responsive or slowest element that took the longest time to load (792 ms) belongs to the original domain Retro-doc.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 432.7 kB (87%)

Content Size

499.4 kB

After Optimization

66.7 kB

In fact, the total size of Retro-doc.com main page is 499.4 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. 45% of websites need less resources to load. CSS take 472.1 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 20.7 kB

  • Original 27.4 kB
  • After minification 27.4 kB
  • After compression 6.7 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 20.7 kB or 75% of the original size.

CSS Optimization

-87%

Potential reduce by 412.0 kB

  • Original 472.1 kB
  • After minification 456.4 kB
  • After compression 60.0 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. Retro-doc.com needs all CSS files to be minified and compressed as it can save up to 412.0 kB or 87% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

11

After Optimization

11

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Retro Doc. According to our analytics all requests are already optimized.

Accessibility Review

retro-doc.com accessibility score

75

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

retro-doc.com 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

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

retro-doc.com 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

    ZH

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Retro-doc.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed English language. Our system also found out that Retro-doc.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 data is detected on the main page of Retro Doc. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: