Tools & Wizards About Us
argo.cz screenshot

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

argo.cz

Nakladatelství Argo — Kvalitní beletrie a historické i jiné odborné knihy

Page Load Speed

4 sec in total

First Response

214 ms

Resources Loaded

2.8 sec

Page Rendered

961 ms

argo.cz screenshot

About Website

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

Nakladatelství Argo, jedno z nejvýraznějších českých nakladatelství posledního desetiletí. Vydáváme kvalitní prózu, poezii, nonfiction, dětskou literaturu a komiksy...

Visit argo.cz

Key Findings

We analyzed Argo.cz page load time and found that the first response time was 214 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

argo.cz performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value9.1 s

1/100

25%

SI (Speed Index)

Value5.0 s

64/100

10%

TBT (Total Blocking Time)

Value420 ms

65/100

30%

CLS (Cumulative Layout Shift)

Value0.519

15/100

15%

TTI (Time to Interactive)

Value7.9 s

44/100

10%

Network Requests Diagram

argo.cz

214 ms

argo.cz

479 ms

js

68 ms

c7ouk.css

106 ms

c7ouk.css

184 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 59% of them (36 requests) were addressed to the original Argo.cz, 30% (18 requests) were made to Obalky.kosmas.cz and 3% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Obalky.kosmas.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 444.6 kB (11%)

Content Size

3.9 MB

After Optimization

3.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Argo.cz main page is 3.9 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. 60% of websites need less resources to load. Images take 3.6 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 85.0 kB

  • Original 108.7 kB
  • After minification 106.9 kB
  • After compression 23.7 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 85.0 kB or 78% of the original size.

Image Optimization

-9%

Potential reduce by 324.0 kB

  • Original 3.6 MB
  • After minification 3.3 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. Argo images are well optimized though.

JavaScript Optimization

-24%

Potential reduce by 32.6 kB

  • Original 138.5 kB
  • After minification 138.5 kB
  • After compression 105.9 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 32.6 kB or 24% of the original size.

CSS Optimization

-6%

Potential reduce by 3.0 kB

  • Original 53.6 kB
  • After minification 53.6 kB
  • After compression 50.7 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. Argo.cz has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 23 (41%)

Requests Now

56

After Optimization

33

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Argo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

argo.cz

argo.cz

214 ms

argo.cz

argo.cz

479 ms

js

js

68 ms

c7ouk.css

c7ouk.css

106 ms

c7ouk.css

c7ouk.css

184 ms

css

css

45 ms

c7ouk.css

c7ouk.css

371 ms

polyfill.min.js

polyfill.min.js

305 ms

jquery.min.js

jquery.min.js

281 ms

jquery-migrate.min.js

jquery-migrate.min.js

274 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

277 ms

wp-polyfill.min.js

wp-polyfill.min.js

282 ms

index.js

index.js

290 ms

main.min.js

main.min.js

478 ms

js

js

38 ms

analytics.js

analytics.js

16 ms

collect

collect

48 ms

539527_bg.jpg

539527_bg.jpg

1083 ms

539529_bg.jpg

539529_bg.jpg

1082 ms

535442_bg.jpg

535442_bg.jpg

1082 ms

539478_bg.jpg

539478_bg.jpg

1076 ms

536097_bg.jpg

536097_bg.jpg

1081 ms

535450_bg.jpg

535450_bg.jpg

1075 ms

535443_bg.jpg

535443_bg.jpg

1267 ms

535434_bg.jpg

535434_bg.jpg

1275 ms

526135_bg.jpg

526135_bg.jpg

1270 ms

535429_bg.jpg

535429_bg.jpg

1273 ms

535440_bg.jpg

535440_bg.jpg

1278 ms

535424_bg.jpg

535424_bg.jpg

1282 ms

535421_bg.jpg

535421_bg.jpg

1474 ms

535426_bg.jpg

535426_bg.jpg

1473 ms

535433_bg.jpg

535433_bg.jpg

1482 ms

535650_bg.jpg

535650_bg.jpg

1399 ms

530277_bg.jpg

530277_bg.jpg

1401 ms

530279_bg.jpg

530279_bg.jpg

1410 ms

caret.svg

caret.svg

640 ms

search.svg

search.svg

642 ms

arrow-long-right.svg

arrow-long-right.svg

643 ms

arrow-long-right-white.svg

arrow-long-right-white.svg

644 ms

Argo-EP_obalka.jpg

Argo-EP_obalka.jpg

644 ms

2.jpeg

2.jpeg

646 ms

Metropolis-Regular.woff

Metropolis-Regular.woff

613 ms

Metropolis-SemiBold.woff

Metropolis-SemiBold.woff

758 ms

zOL64pLDlL1D99S8g8PtiKchq-lmiw.woff

zOL64pLDlL1D99S8g8PtiKchq-lmiw.woff

607 ms

logo.svg

logo.svg

567 ms

anchor.svg

anchor.svg

566 ms

wave2.svg

wave2.svg

709 ms

wave.svg

wave.svg

709 ms

rudder.svg

rudder.svg

709 ms

footer-bg.svg

footer-bg.svg

708 ms

facebook.svg

facebook.svg

708 ms

instagram.svg

instagram.svg

798 ms

twitter.svg

twitter.svg

799 ms

rss.svg

rss.svg

807 ms

hurliman_rudy_diamant_2360-x-1200.jpg

hurliman_rudy_diamant_2360-x-1200.jpg

703 ms

melchiorre_vevoda_2360-x-1200.jpg

melchiorre_vevoda_2360-x-1200.jpg

418 ms

colganova_letni_nebe_2360-x-1200.jpg

colganova_letni_nebe_2360-x-1200.jpg

503 ms

cervenak_lovec_certu_2360-x-1200.jpg

cervenak_lovec_certu_2360-x-1200.jpg

598 ms

mahler_kafka_v_kostce_2360-x-1200.jpg

mahler_kafka_v_kostce_2360-x-1200.jpg

609 ms

bannery_unor_ukrajina.jpg

bannery_unor_ukrajina.jpg

998 ms

krasny_druhy_dech_2360-x-1200.jpg

krasny_druhy_dech_2360-x-1200.jpg

519 ms

Accessibility Review

argo.cz accessibility score

89

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

argo.cz best practices score

83

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

Browser errors were logged to the console

SEO Factors

argo.cz SEO score

99

Search Engine Optimization Advices

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

    CS

  • Language Claimed

    CS

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Argo.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 Argo.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

argo.cz

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