Access sbp.pl. Start

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value10.4 s

0/100

25%

SI (Speed Index)

Value12.1 s

3/100

10%

TBT (Total Blocking Time)

Value7,580 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.06

98/100

15%

TTI (Time to Interactive)

Value16.9 s

5/100

10%

sbp.pl

305 ms

www.sbp.pl

2337 ms

all.js

10 ms

css

67 ms

css

78 ms

Our browser made a total of 139 requests to load all elements on the main page. We found that 77% of them (107 requests) were addressed to the original Sbp.pl, 7% (10 requests) were made to Static.xx.fbcdn.net and 4% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Sbp.pl.

Content Size

1.6 MB

After Optimization

1.2 MB

In fact, the total size of Sbp.pl main page is 1.6 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. 65% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 80.0 kB

Original 94.4 kB
After minification 68.3 kB
After compression 14.4 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. This page needs HTML code to be minified as it can gain 26.1 kB, which is 28% 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 80.0 kB or 85% of the original size.

Image Optimization

-10%

Potential reduce by 120.4 kB

Original 1.2 MB
After minification 1.0 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. Sbp images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 137.2 kB

Original 207.9 kB
After minification 187.5 kB
After compression 70.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 137.2 kB or 66% of the original size.

CSS Optimization

-86%

Potential reduce by 95.0 kB

Original 110.6 kB
After minification 77.8 kB
After compression 15.6 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. Sbp.pl needs all CSS files to be minified and compressed as it can save up to 95.0 kB or 86% of the original size.

Requests Now

131

After Optimization

102

The browser has sent 131 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sbp. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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 the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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

High

robots.txt is not valid

Language and Encoding

Language Detected

PL
Language Claimed

N/A
Encoding

UTF-8

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

sbp.pl

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Start

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

sbp.pl

www.sbp.pl

all.js

css

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

sbp.pl

www.sbp.pl

all.js

css

css

jquery.js

sbp.js

lytebox.js

site.css

lytebox.css

newsletter.css

jquery-ui-1.9.2.custom.min.js

jquery.mousewheel.min.js

jquery.tooltip.js

jqm.js

jqm.css

wyszukiwarka.js

174587_54263357680_875337982_q.jpg

logo_sbpv2.png

icons.png

language_separator.png

fbpodklad.png

twpodklad.png

1procentdlaSBP2-v3.jpg

ale_historia_konkurs_980x190_sbp.jpg

warsztaty-aktywne-formy---marzec-2016-2.jpg

warsztaty---abc-ochrony-danych-osobowych.jpg

warsztaty---prawo-autorskie-w-bibliotekach.jpg

badania-afb-2016-publiczne-pedagogiczne.jpg

mega-rabaty.jpg

serwis-autyzm-2-gpjp.jpg

kafelek_icon1.png

kafelek_icon2.png

MPLC-partner3.png

logo_ibuk_v2.png

PBW_KEN_Wawa.png

nowowydane-240x105.jpg

partner-biblioteka-rumla.png

studenci.png

2-ksiazki-20p.png

timthumb.php

timthumb.php

timthumb.php