Tools & Wizards About Us
jacob.de screenshot

Report Summary

  • 40

    Performance

    Renders faster than
    59% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

jacob.de

PCs, Hardware, Software & weiteres Zubehör bei JACOB online kaufen

Page Load Speed

3 sec in total

First Response

824 ms

Resources Loaded

1.8 sec

Page Rendered

359 ms

jacob.de screenshot

About Website

Click here to check amazing JACOB content for Germany. Otherwise, check out these important facts you probably never knew about jacob.de

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Key Findings

We analyzed Jacob.de page load time and found that the first response time was 824 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

jacob.de performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

69/100

10%

LCP (Largest Contentful Paint)

Value8.0 s

2/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value740 ms

40/100

30%

CLS (Cumulative Layout Shift)

Value0.028

100/100

15%

TTI (Time to Interactive)

Value12.4 s

15/100

10%

Network Requests Diagram

www.jacob.de

824 ms

994.b5660881.js

121 ms

112.45d9470c.js

212 ms

674.5a3a4cdb.js

297 ms

675.9eb03f12.js

296 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 83% of them (25 requests) were addressed to the original Jacob.de, 7% (2 requests) were made to Googletagmanager.com and 3% (1 request) were made to Js.hcaptcha.com. The less responsive or slowest element that took the longest time to load (824 ms) belongs to the original domain Jacob.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 195.5 kB (36%)

Content Size

542.1 kB

After Optimization

346.6 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Jacob.de main page is 542.1 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. 50% of websites need less resources to load. Images take 270.1 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 87.1 kB

  • Original 109.6 kB
  • After minification 95.5 kB
  • After compression 22.4 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 14.0 kB, which is 13% 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 87.1 kB or 80% of the original size.

Image Optimization

-40%

Potential reduce by 108.2 kB

  • Original 270.1 kB
  • After minification 161.9 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, JACOB needs image optimization as it can save up to 108.2 kB or 40% 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 125 B

  • Original 162.3 kB
  • After minification 162.3 kB
  • After compression 162.2 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 Breakdown

Number of requests can be reduced by 12 (41%)

Requests Now

29

After Optimization

17

  • AJAX
  • Images
  • JavaScript

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JACOB. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.jacob.de

www.jacob.de

824 ms

994.b5660881.js

994.b5660881.js

121 ms

112.45d9470c.js

112.45d9470c.js

212 ms

674.5a3a4cdb.js

674.5a3a4cdb.js

297 ms

675.9eb03f12.js

675.9eb03f12.js

296 ms

294.b422fc40.js

294.b422fc40.js

398 ms

163.0cdfd9c5.js

163.0cdfd9c5.js

300 ms

main.dc664bbc.js

main.dc664bbc.js

311 ms

tooltip.93a8a1c4.js

tooltip.93a8a1c4.js

313 ms

recommendation.4c59280f.js

recommendation.4c59280f.js

397 ms

gtm.js

gtm.js

119 ms

js

js

163 ms

api.js

api.js

54 ms

kameleoon.js

kameleoon.js

117 ms

APC.png

APC.png

368 ms

Apple-Autorisiert.png

Apple-Autorisiert.png

371 ms

Aruba.png

Aruba.png

384 ms

Cisco.png

Cisco.png

382 ms

Jabra.png

Jabra.png

467 ms

Microsoft.png

Microsoft.png

465 ms

SAMSUNG.png

SAMSUNG.png

466 ms

Sophos.png

Sophos.png

474 ms

Ubiquiti.png

Ubiquiti.png

484 ms

Zebra.png

Zebra.png

489 ms

HPEnterprise.png

HPEnterprise.png

571 ms

Elo_Logo_Web.png

Elo_Logo_Web.png

570 ms

Synology_logo_Standard.png

Synology_logo_Standard.png

571 ms

iiyama.png

iiyama.png

579 ms

payment-sprite.png

payment-sprite.png

781 ms

de.json

de.json

55 ms

Accessibility Review

jacob.de accessibility score

80

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

jacob.de best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

jacob.de SEO score

98

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jacob.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Jacob.de 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

jacob.de

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