Access spzzlo.pl. Samodzielny Publiczny Zespół Zakładów Lecznictwa Otwartego Warszawa-Żoliborz

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

45/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value1,970 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0.117

85/100

15%

TTI (Time to Interactive)

Value10.6 s

23/100

10%

spzzlo.pl

334 ms

spzzlo.pl

947 ms

bootstrap.min.css

220 ms

fonts.css

327 ms

spzzlo.css

330 ms

Our browser made a total of 96 requests to load all elements on the main page. We found that 83% of them (80 requests) were addressed to the original Spzzlo.pl, 5% (5 requests) were made to Fonts.gstatic.com and 3% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain Spzzlo.pl.

Content Size

11.5 MB

After Optimization

11.3 MB

In fact, the total size of Spzzlo.pl main page is 11.5 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. 70% of websites need less resources to load. Images take 11.0 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 139.4 kB

Original 158.8 kB
After minification 101.7 kB
After compression 19.3 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. This page needs HTML code to be minified as it can gain 57.1 kB, which is 36% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 139.4 kB or 88% of the original size.

Image Optimization

-0%

Potential reduce by 22.6 kB

Original 11.0 MB
After minification 11.0 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. Spzzlo images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.6 kB

Original 285.3 kB
After minification 285.3 kB
After compression 283.7 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

-5%

Potential reduce by 1.5 kB

Original 30.5 kB
After minification 30.5 kB
After compression 29.0 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. Spzzlo.pl has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 89 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Spzzlo. 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 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

PL
Language Claimed

PL
Encoding

UTF-8

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

spzzlo.pl

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Samodzielny Publiczny Zespół Zakładów Lecznictwa Otwartego Warszawa-Żoliborz | spzzlo.pl

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

spzzlo.pl

spzzlo.pl

bootstrap.min.css

fonts.css

spzzlo.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

spzzlo.pl

spzzlo.pl

bootstrap.min.css

fonts.css

spzzlo.css

jquery-3.3.1.min.js

popper-1.14.3.min.js

bootstrap.min.js

cookies.js

js.js

css

css

css

js

api.js

recaptcha__en.js

sp_logo.png

plmsw.png

sp_phone.svg

sp_lp.svg

sp_n.svg

migam.svg

ETR.svg

unia.svg

sp_st2.svg

sp_st.svg

plogolnopolski-dzien-diagnosty-laboratoryjnego-d87.jpg

sp_st5.svg

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