Tools & Wizards About Us
dhservis.cz screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 60

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

dhservis.cz

*DH servis* Vývoj a výroba elektroniky na zakázku

Page Load Speed

1.7 sec in total

First Response

519 ms

Resources Loaded

1.1 sec

Page Rendered

101 ms

dhservis.cz screenshot

About Website

Click here to check amazing DH Servis content for Czech Republic. Otherwise, check out these important facts you probably never knew about dhservis.cz

*DH servis* Vývoj a výroba elektroniky na zakázku

Visit dhservis.cz

Key Findings

We analyzed Dhservis.cz page load time and found that the first response time was 519 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

dhservis.cz performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.0 s

100/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

dhservis.cz

519 ms

kontakt_b1.gif

222 ms

kontakt_b1_over.gif

219 ms

kontakt_b2.gif

219 ms

kontakt_b2_over.gif

221 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that all of those requests were addressed to Dhservis.cz and no external sources were called. The less responsive or slowest element that took the longest time to load (554 ms) belongs to the original domain Dhservis.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 20.4 kB (57%)

Content Size

35.8 kB

After Optimization

15.4 kB

  • HTML
  • Images

In fact, the total size of Dhservis.cz main page is 35.8 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. 15% of websites need less resources to load. HTML takes 28.9 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 19.5 kB

  • Original 28.9 kB
  • After minification 28.6 kB
  • After compression 9.4 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. 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 19.5 kB or 67% of the original size.

Image Optimization

-14%

Potential reduce by 945 B

  • Original 6.9 kB
  • After minification 5.9 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, DH Servis needs image optimization as it can save up to 945 B or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Requests Breakdown

We found no issues to fix!

Requests Now

28

After Optimization

28

  • Images

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DH Servis. According to our analytics all requests are already optimized.

Network Requests Diagram

dhservis.cz

dhservis.cz

519 ms

kontakt_b1.gif

kontakt_b1.gif

222 ms

kontakt_b1_over.gif

kontakt_b1_over.gif

219 ms

kontakt_b2.gif

kontakt_b2.gif

219 ms

kontakt_b2_over.gif

kontakt_b2_over.gif

221 ms

kontakt_b9.gif

kontakt_b9.gif

221 ms

kontakt_b9_over.gif

kontakt_b9_over.gif

221 ms

kontakt_b3.gif

kontakt_b3.gif

332 ms

kontakt_b3_over.gif

kontakt_b3_over.gif

331 ms

kontakt_b4.gif

kontakt_b4.gif

329 ms

kontakt_b4_over.gif

kontakt_b4_over.gif

330 ms

kontakt_b5.gif

kontakt_b5.gif

330 ms

kontakt_b5_over.gif

kontakt_b5_over.gif

331 ms

kontakt_b6.gif

kontakt_b6.gif

439 ms

kontakt_b6_over.gif

kontakt_b6_over.gif

440 ms

kontakt_b7.gif

kontakt_b7.gif

439 ms

kontakt_b7_over.gif

kontakt_b7_over.gif

440 ms

forum.gif

forum.gif

441 ms

forum_over.gif

forum_over.gif

439 ms

kontakt_b10.gif

kontakt_b10.gif

548 ms

kontakt_b10_over.gif

kontakt_b10_over.gif

549 ms

pozadi.jpg

pozadi.jpg

449 ms

servis.gif

servis.gif

452 ms

kontakt_top.gif

kontakt_top.gif

452 ms

kontakt_bottom.gif

kontakt_bottom.gif

442 ms

home.gif

home.gif

549 ms

cara.gif

cara.gif

550 ms

hledej.gif

hledej.gif

550 ms

pozadi_1.jpg

pozadi_1.jpg

554 ms

Accessibility Review

dhservis.cz accessibility score

60

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

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

Form elements do not have associated labels

Best Practices

dhservis.cz best practices score

67

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

dhservis.cz SEO score

67

Search Engine Optimization Advices

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

    CS

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dhservis.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech 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 Dhservis.cz 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

dhservis.cz

Open Graph description is not detected on the main page of DH Servis. 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: