Tools & Wizards About Us
slevarna.cz screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    47% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

slevarna.cz

Slévárna a modelárna Nové Ransko, s.r.o. - Slévárna a modelárna

Page Load Speed

9.3 sec in total

First Response

3.4 sec

Resources Loaded

5.7 sec

Page Rendered

208 ms

slevarna.cz screenshot

About Website

Visit slevarna.cz now to see the best up-to-date Slevarna content and also check out these interesting facts you probably never knew about slevarna.cz

(Česky) Naše společnost je středně velkou komerční slévárnou a modelárnou s ročním objemem výroby ca. 3500 tun odlitků.

Visit slevarna.cz

Key Findings

We analyzed Slevarna.cz page load time and found that the first response time was 3.4 sec and then it took 5.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

slevarna.cz performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

7/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

20/100

25%

SI (Speed Index)

Value9.8 s

10/100

10%

TBT (Total Blocking Time)

Value1,370 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value13.3 s

11/100

10%

Network Requests Diagram

wp-signup.php

3359 ms

js

16 ms

js

65 ms

style.min.css

413 ms

styles.css

224 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 92% of them (45 requests) were addressed to the original Slevarna.cz, 6% (3 requests) were made to Googletagmanager.com and 2% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain Slevarna.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 429.9 kB (43%)

Content Size

1.0 MB

After Optimization

574.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Slevarna.cz main page is 1.0 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. 30% of websites need less resources to load. Images take 419.0 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 80.2 kB

  • Original 101.1 kB
  • After minification 95.5 kB
  • After compression 20.9 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 80.2 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 171 B

  • Original 419.0 kB
  • After minification 418.8 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. Slevarna images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 263.6 kB

  • Original 379.7 kB
  • After minification 365.2 kB
  • After compression 116.1 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 263.6 kB or 69% of the original size.

CSS Optimization

-82%

Potential reduce by 85.9 kB

  • Original 104.5 kB
  • After minification 96.2 kB
  • After compression 18.7 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. Slevarna.cz needs all CSS files to be minified and compressed as it can save up to 85.9 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (51%)

Requests Now

47

After Optimization

23

  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Slevarna. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

wp-signup.php

wp-signup.php

3359 ms

js

js

16 ms

js

js

65 ms

style.min.css

style.min.css

413 ms

styles.css

styles.css

224 ms

cookieblocker.min.css

cookieblocker.min.css

224 ms

style.css

style.css

319 ms

nivo-slider.css

nivo-slider.css

220 ms

responsive.css

responsive.css

334 ms

style_base.css

style_base.css

433 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

268 ms

jquery.min.js

jquery.min.js

622 ms

jquery-migrate.min.js

jquery-migrate.min.js

334 ms

jquery.nivo.slider.js

jquery.nivo.slider.js

445 ms

custom.js

custom.js

376 ms

wp-polyfill.min.js

wp-polyfill.min.js

605 ms

index.js

index.js

380 ms

api.js

api.js

44 ms

index.js

index.js

392 ms

complianz.min.js

complianz.min.js

628 ms

wp-embed.min.js

wp-embed.min.js

488 ms

js

js

14 ms

illust31-e1505285263663.jpg

illust31-e1505285263663.jpg

319 ms

Logo-Platn%C3%A9.jpg

Logo-Platn%C3%A9.jpg

1035 ms

icon-watch.png

icon-watch.png

118 ms

icon-phone.png

icon-phone.png

118 ms

icon-email.png

icon-email.png

118 ms

mobile_nav_right.png

mobile_nav_right.png

120 ms

cz.png

cz.png

165 ms

gb.png

gb.png

239 ms

de.png

de.png

261 ms

ru.png

ru.png

242 ms

model-150x120.png

model-150x120.png

534 ms

odlitek-132x150.png

odlitek-132x150.png

631 ms

obrabeni-150x112.png

obrabeni-150x112.png

543 ms

footericon1.jpg

footericon1.jpg

236 ms

footericon2.jpg

footericon2.jpg

282 ms

footericon3.jpg

footericon3.jpg

352 ms

cert.home_.ems_.gif

cert.home_.ems_.gif

431 ms

cert.home_.jakost.gif

cert.home_.jakost.gif

437 ms

cert.home_.management.gif

cert.home_.management.gif

543 ms

4668-150x150.jpg

4668-150x150.jpg

544 ms

FK130477-150x100.jpg

FK130477-150x100.jpg

737 ms

wp-polyfill-fetch.min.js

wp-polyfill-fetch.min.js

323 ms

wp-polyfill-dom-rect.min.js

wp-polyfill-dom-rect.min.js

320 ms

wp-polyfill-url.min.js

wp-polyfill-url.min.js

535 ms

wp-polyfill-formdata.min.js

wp-polyfill-formdata.min.js

394 ms

wp-polyfill-element-closest.min.js

wp-polyfill-element-closest.min.js

403 ms

wp-polyfill-object-fit.min.js

wp-polyfill-object-fit.min.js

428 ms

Accessibility Review

slevarna.cz accessibility score

91

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

Best Practices

slevarna.cz 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

slevarna.cz SEO score

88

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

slevarna.cz

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