Report Summary

  • 84

    Performance

    Renders faster than
    89% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

arachne.cz

Arachne Aerospace

Page Load Speed

2 sec in total

First Response

356 ms

Resources Loaded

1.4 sec

Page Rendered

190 ms

arachne.cz screenshot

About Website

Click here to check amazing Arachne content. Otherwise, check out these important facts you probably never knew about arachne.cz

Arachne Labs

Visit arachne.cz

Key Findings

We analyzed Arachne.cz page load time and found that the first response time was 356 ms and then it took 1.6 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

arachne.cz performance score

84

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

83/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.434

22/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

arachne.cz

356 ms

arachne-2015.css

113 ms

arachne-aerospace.gif

223 ms

earthexplorationrover.jpg

1048 ms

spoje-net_logo.gif

238 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that all of those requests were addressed to Arachne.cz and no external sources were called. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Arachne.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 10.3 kB (2%)

Content Size

420.5 kB

After Optimization

410.2 kB

In fact, the total size of Arachne.cz main page is 420.5 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 410.8 kB which makes up the majority of the site volume.

HTML Optimization

-52%

Potential reduce by 1.5 kB

  • Original 2.9 kB
  • After minification 2.9 kB
  • After compression 1.4 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 1.5 kB or 52% of the original size.

Image Optimization

-1%

Potential reduce by 2.8 kB

  • Original 410.8 kB
  • After minification 408.0 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. Arachne images are well optimized though.

CSS Optimization

-88%

Potential reduce by 6.0 kB

  • Original 6.8 kB
  • After minification 5.6 kB
  • After compression 832 B

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. Arachne.cz needs all CSS files to be minified and compressed as it can save up to 6.0 kB or 88% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

7

After Optimization

7

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Arachne. According to our analytics all requests are already optimized.

Accessibility Review

arachne.cz accessibility score

49

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.

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

Links do not have a discernible name

Best Practices

arachne.cz best practices score

75

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

Serves images with low resolution

SEO Factors

arachne.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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

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

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