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stahlhofer.nl screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    55% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

stahlhofer.nl

Stahlhöfer Electrotechniek| Elektricien Amsterdam & omgeving

Page Load Speed

8 sec in total

First Response

404 ms

Resources Loaded

4.5 sec

Page Rendered

3.1 sec

stahlhofer.nl screenshot

About Website

Click here to check amazing Stahlhofer content. Otherwise, check out these important facts you probably never knew about stahlhofer.nl

elektricien Amsterdam- Stahlhöfer Electrotechniek biedt elektrotechnische oplossingen voor particulieren, klein en groot-mkb en de industriële sector. Wij zijn de elektricien in Amsterdam in te zetten...

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Key Findings

We analyzed Stahlhofer.nl page load time and found that the first response time was 404 ms and then it took 7.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

stahlhofer.nl performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

10/100

10%

LCP (Largest Contentful Paint)

Value13.6 s

0/100

25%

SI (Speed Index)

Value9.6 s

11/100

10%

TBT (Total Blocking Time)

Value330 ms

75/100

30%

CLS (Cumulative Layout Shift)

Value0.232

54/100

15%

TTI (Time to Interactive)

Value9.6 s

29/100

10%

Network Requests Diagram

stahlhofer.nl

404 ms

www.stahlhofer.nl

1000 ms

styles.css

484 ms

image-renderer.css

484 ms

wpcf7-redirect-frontend.min.css

485 ms

Our browser made a total of 43 requests to load all elements on the main page. We found that 33% of them (14 requests) were addressed to the original Stahlhofer.nl, 47% (20 requests) were made to Installateurs.uwduurzameinstallateur.com and 5% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Stahlhofer.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 127.6 kB (3%)

Content Size

4.3 MB

After Optimization

4.2 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Stahlhofer.nl main page is 4.3 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. 30% of websites need less resources to load. Images take 4.2 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 40.6 kB

  • Original 54.4 kB
  • After minification 47.2 kB
  • After compression 13.8 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 7.2 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 40.6 kB or 75% of the original size.

Image Optimization

-2%

Potential reduce by 86.9 kB

  • Original 4.2 MB
  • After minification 4.1 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. Stahlhofer images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 101 B

  • Original 21.6 kB
  • After minification 21.6 kB
  • After compression 21.5 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 4 (19%)

Requests Now

21

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stahlhofer. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

stahlhofer.nl

stahlhofer.nl

404 ms

www.stahlhofer.nl

www.stahlhofer.nl

1000 ms

styles.css

styles.css

484 ms

image-renderer.css

image-renderer.css

484 ms

wpcf7-redirect-frontend.min.css

wpcf7-redirect-frontend.min.css

485 ms

css

css

71 ms

default-12.css

default-12.css

484 ms

cookie.css

cookie.css

484 ms

public.css

public.css

483 ms

js

js

94 ms

jquery-3.3.1.min.js

jquery-3.3.1.min.js

513 ms

scripts.js

scripts.js

513 ms

jquery.wp-smartcrop.min.js

jquery.wp-smartcrop.min.js

513 ms

wpcf7-redirect-frontend-script.js

wpcf7-redirect-frontend-script.js

512 ms

api.js

api.js

59 ms

script.js

script.js

512 ms

jquery.slicknav.min.js

jquery.slicknav.min.js

512 ms

wow.min.js

wow.min.js

512 ms

menu-config.min.js

menu-config.min.js

512 ms

lazy.min.js

lazy.min.js

512 ms

smoothscroll.min.js

smoothscroll.min.js

511 ms

slick.min.js

slick.min.js

511 ms

slick-config.min.js

slick-config.min.js

511 ms

collapsible.min.js

collapsible.min.js

510 ms

cookie.min.js

cookie.min.js

510 ms

analytics.js

analytics.js

38 ms

gtm.js

gtm.js

62 ms

PVD5044.png

PVD5044.png

986 ms

PVD5336.jpg

PVD5336.jpg

473 ms

shutterstock_432847375.jpg

shutterstock_432847375.jpg

472 ms

PVD4938.jpg

PVD4938.jpg

558 ms

shutterstock_12385636.jpg

shutterstock_12385636.jpg

473 ms

PVD5294.jpg

PVD5294.jpg

660 ms

shutterstock_445040029.jpg

shutterstock_445040029.jpg

645 ms

PVD5244.jpg

PVD5244.jpg

745 ms

shutterstock_117918343.jpg

shutterstock_117918343.jpg

563 ms

2016-12-13-DuurzameInstallateur-8533-e1516267956568.jpg

2016-12-13-DuurzameInstallateur-8533-e1516267956568.jpg

652 ms

PVD5317.jpg

PVD5317.jpg

746 ms

Lifestyle-1.jpg

Lifestyle-1.jpg

1194 ms

recaptcha__et.js

recaptcha__et.js

253 ms

collect

collect

33 ms

collect

collect

47 ms

ga-audiences

ga-audiences

38 ms

Accessibility Review

stahlhofer.nl accessibility score

84

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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 valid value for its [lang] attribute.

Best Practices

stahlhofer.nl best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

stahlhofer.nl SEO score

85

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

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

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

stahlhofer.nl

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