Tools & Wizards About Us
j-spec.se screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

j-spec.se

Biltillbehör och motorsport – vi har Sveriges största utbud

Page Load Speed

5.1 sec in total

First Response

117 ms

Resources Loaded

4.7 sec

Page Rendered

257 ms

j-spec.se screenshot

About Website

Visit j-spec.se now to see the best up-to-date J Spec content for Sweden and also check out these interesting facts you probably never knew about j-spec.se

Vi har biltillbehör och motorsport för mängder av bilmodeller. Snabb leverans från eget stort lager och alltid bra priser

Visit j-spec.se

Key Findings

We analyzed J-spec.se page load time and found that the first response time was 117 ms and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

j-spec.se performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

13/100

10%

LCP (Largest Contentful Paint)

Value11.5 s

0/100

25%

SI (Speed Index)

Value6.3 s

41/100

10%

TBT (Total Blocking Time)

Value1,590 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.22

57/100

15%

TTI (Time to Interactive)

Value14.0 s

10/100

10%

Network Requests Diagram

www.j-spec.se

117 ms

www.j-spec.se

717 ms

master.css

309 ms

bootstrap.css

422 ms

font-awesome.min.css

33 ms

Our browser made a total of 189 requests to load all elements on the main page. We found that 93% of them (176 requests) were addressed to the original J-spec.se, 2% (4 requests) were made to Use.fontawesome.com and 2% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain J-spec.se.

Page Optimization Overview & Recommendations

Page size can be reduced by 458.4 kB (11%)

Content Size

4.0 MB

After Optimization

3.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of J-spec.se main page is 4.0 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. 65% of websites need less resources to load. Images take 3.5 MB which makes up the majority of the site volume.

HTML Optimization

-92%

Potential reduce by 368.5 kB

  • Original 402.2 kB
  • After minification 329.9 kB
  • After compression 33.8 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 72.4 kB, which is 18% 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 368.5 kB or 92% of the original size.

Image Optimization

-3%

Potential reduce by 88.4 kB

  • Original 3.5 MB
  • After minification 3.4 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. J Spec images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 130 B

  • Original 75.8 kB
  • After minification 75.8 kB
  • After compression 75.7 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

-3%

Potential reduce by 1.3 kB

  • Original 43.4 kB
  • After minification 43.4 kB
  • After compression 42.1 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. J-spec.se has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 15 (8%)

Requests Now

180

After Optimization

165

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 180 CSS, Javascripts, AJAX and image requests in order to completely render the main page of J Spec. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.j-spec.se

www.j-spec.se

117 ms

www.j-spec.se

www.j-spec.se

717 ms

master.css

master.css

309 ms

bootstrap.css

bootstrap.css

422 ms

font-awesome.min.css

font-awesome.min.css

33 ms

all.css

all.css

43 ms

sd.css

sd.css

309 ms

this.css

this.css

320 ms

inherit.css

inherit.css

325 ms

custom.css

custom.css

358 ms

jquery.min.js

jquery.min.js

25 ms

bootstrap.min.js

bootstrap.min.js

411 ms

component.js

component.js

408 ms

component.js

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441 ms

css

css

44 ms

lib.js

lib.js

398 ms

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602 ms

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601 ms

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600 ms

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623 ms

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620 ms

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604 ms

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599 ms

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601 ms

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600 ms

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622 ms

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615 ms

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600 ms

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607 ms

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600 ms

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601 ms

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615 ms

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611 ms

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607 ms

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613 ms

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jspec-bg-1800.jpg

602 ms

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601 ms

Accessibility Review

j-spec.se accessibility score

85

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.

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

<input type="image"> elements do not have [alt] text

High

Links do not have a discernible name

Best Practices

j-spec.se 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

j-spec.se SEO score

91

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

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

    N/A

  • Language Claimed

    SV

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise J-spec.se can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is Swedish. Our system also found out that J-spec.se 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

j-spec.se

Open Graph data is detected on the main page of J Spec. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: