Report Summary

  • 80

    Performance

    Renders faster than
    86% of other websites

  • 50

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

manualuniverse.com

Repair manuals - service manuals - schematic diagrams and other products - ManualUniverse.com - Manual Universe

Page Load Speed

2.6 sec in total

First Response

431 ms

Resources Loaded

2.1 sec

Page Rendered

84 ms

manualuniverse.com screenshot

About Website

Welcome to manualuniverse.com homepage info - get ready to check Manual Universe best content for Russia right away, or after learning these important things about manualuniverse.com

Manual Universe: Repair manuals, service manuals, schematic diagrams for audio/visual equipment consumer electronics and cars. Specialized in Panasonic Sony Aiwa JVC Samsung Sharp Pioneer Grundig Sany...

Visit manualuniverse.com

Key Findings

We analyzed Manualuniverse.com page load time and found that the first response time was 431 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

manualuniverse.com performance score

80

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

39/100

25%

SI (Speed Index)

Value3.4 s

90/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value5.3 s

72/100

10%

Network Requests Diagram

manualuniverse.com

431 ms

estilos.css

72 ms

muniverse.js

86 ms

AC_RunActiveContent.js

111 ms

js

62 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 83% of them (45 requests) were addressed to the original Manualuniverse.com, 4% (2 requests) were made to Server4.web-stat.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (819 ms) relates to the external source 3dstats.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 125.3 kB (17%)

Content Size

749.8 kB

After Optimization

624.5 kB

In fact, the total size of Manualuniverse.com main page is 749.8 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. Images take 588.0 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 15.3 kB

  • Original 20.2 kB
  • After minification 18.8 kB
  • After compression 4.9 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 15.3 kB or 76% of the original size.

Image Optimization

-11%

Potential reduce by 62.3 kB

  • Original 588.0 kB
  • After minification 525.6 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, Manual Universe needs image optimization as it can save up to 62.3 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-29%

Potential reduce by 37.2 kB

  • Original 129.3 kB
  • After minification 111.0 kB
  • After compression 92.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 37.2 kB or 29% of the original size.

CSS Optimization

-85%

Potential reduce by 10.4 kB

  • Original 12.2 kB
  • After minification 9.2 kB
  • After compression 1.9 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. Manualuniverse.com needs all CSS files to be minified and compressed as it can save up to 10.4 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (48%)

Requests Now

50

After Optimization

26

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Manual Universe. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

manualuniverse.com accessibility score

50

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.

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

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

manualuniverse.com best practices score

50

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

manualuniverse.com SEO score

62

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Manualuniverse.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Manualuniverse.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Manual Universe. 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: