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metva.cz screenshot

Report Summary

  • 57

    Performance

    Renders faster than
    74% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

metva.cz

⚡ Aktuelle Unwetterwarnungen Česká republika - Updates alle 5 Minuten! - metva.cz

Page Load Speed

3.1 sec in total

First Response

284 ms

Resources Loaded

2.7 sec

Page Rendered

135 ms

metva.cz screenshot

About Website

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

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Visit metva.cz

Key Findings

We analyzed Metva.cz page load time and found that the first response time was 284 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

metva.cz performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

55/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

65/100

25%

SI (Speed Index)

Value5.0 s

64/100

10%

TBT (Total Blocking Time)

Value710 ms

42/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value12.4 s

15/100

10%

Network Requests Diagram

metva.cz

284 ms

metva.cz

597 ms

home.min.css

438 ms

home-min.js

851 ms

analytics.js

36 ms

Our browser made a total of 25 requests to load all elements on the main page. We found that 64% of them (16 requests) were addressed to the original Metva.cz, 8% (2 requests) were made to Google-analytics.com and 4% (1 request) were made to Web-misc.ubimet.com. The less responsive or slowest element that took the longest time to load (851 ms) belongs to the original domain Metva.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 163.2 kB (25%)

Content Size

654.3 kB

After Optimization

491.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Metva.cz main page is 654.3 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. 30% of websites need less resources to load. Images take 372.3 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 86.5 kB

  • Original 108.7 kB
  • After minification 100.3 kB
  • After compression 22.3 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 86.5 kB or 80% of the original size.

Image Optimization

-21%

Potential reduce by 76.7 kB

  • Original 372.3 kB
  • After minification 295.6 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, Metva needs image optimization as it can save up to 76.7 kB or 21% 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 50 B

  • Original 21.0 kB
  • After minification 21.0 kB
  • After compression 20.9 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

-0%

Potential reduce by 0 B

  • Original 152.3 kB
  • After minification 152.3 kB
  • After compression 152.3 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. Metva.cz has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

21

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Metva. According to our analytics all requests are already optimized.

Network Requests Diagram

metva.cz

metva.cz

284 ms

metva.cz

metva.cz

597 ms

home.min.css

home.min.css

438 ms

home-min.js

home-min.js

851 ms

analytics.js

analytics.js

36 ms

577 ms

metva_cz.svg

metva_cz.svg

106 ms

uwz_location_pin.png

uwz_location_pin.png

210 ms

CZ_warning_today_all_desktop.png

CZ_warning_today_all_desktop.png

504 ms

CZ_warning_today_all_thumbnail.png

CZ_warning_today_all_thumbnail.png

460 ms

CZ_warning_today_rain_thumbnail.png

CZ_warning_today_rain_thumbnail.png

459 ms

CZ_warning_today_thunderstorm_thumbnail.png

CZ_warning_today_thunderstorm_thumbnail.png

460 ms

CZ_warning_today_storm_thumbnail.png

CZ_warning_today_storm_thumbnail.png

461 ms

CZ_warning_today_freezingRain_thumbnail.png

CZ_warning_today_freezingRain_thumbnail.png

461 ms

CZ_warning_today_snowfall_thumbnail.png

CZ_warning_today_snowfall_thumbnail.png

460 ms

collect

collect

21 ms

AT_warning_today_all_mobile.png

AT_warning_today_all_mobile.png

623 ms

DE_warning_today_all_mobile.png

DE_warning_today_all_mobile.png

571 ms

CH_warning_today_all_mobile.png

CH_warning_today_all_mobile.png

718 ms

HU_warning_today_all_mobile.png

HU_warning_today_all_mobile.png

717 ms

RO_warning_today_all_mobile.png

RO_warning_today_all_mobile.png

571 ms

PL_warning_today_all_mobile.png

PL_warning_today_all_mobile.png

539 ms

uwz_service_by_ubimet.svg

uwz_service_by_ubimet.svg

105 ms

CZ.geojson

CZ.geojson

417 ms

CZ_today_all.geojson

CZ_today_all.geojson

106 ms

Accessibility Review

metva.cz accessibility score

82

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

Best Practices

metva.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

High

Missing source maps for large first-party JavaScript

SEO Factors

metva.cz 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

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

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

Language and Encoding

  • Language Detected

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

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

metva.cz

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