2.8 sec in total
392 ms
2.1 sec
218 ms
Visit szkola280.pl now to see the best up-to-date Szkola 280 content for Poland and also check out these interesting facts you probably never knew about szkola280.pl
Szkoła podstawowa nr 280 w Warszawie - Szkoła podstawowa z Oddziałami Integracyjnymi nr 280 im. Tytusa Chałubińskiego w Warszawie.
Visit szkola280.plWe analyzed Szkola280.pl page load time and found that the first response time was 392 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
szkola280.pl performance score
name
value
score
weighting
Value4.7 s
13/100
10%
Value6.3 s
11/100
25%
Value7.9 s
22/100
10%
Value40 ms
100/100
30%
Value0.075
95/100
15%
Value5.9 s
66/100
10%
392 ms
116 ms
335 ms
338 ms
336 ms
Our browser made a total of 29 requests to load all elements on the main page. We found that all of those requests were addressed to Szkola280.pl and no external sources were called. The less responsive or slowest element that took the longest time to load (564 ms) belongs to the original domain Szkola280.pl.
Page size can be reduced by 182.5 kB (52%)
351.6 kB
169.2 kB
In fact, the total size of Szkola280.pl main page is 351.6 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. 25% of websites need less resources to load. Images take 180.1 kB which makes up the majority of the site volume.
Potential reduce by 92.8 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 92.8 kB or 92% of the original size.
Potential reduce by 32.4 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, Szkola 280 needs image optimization as it can save up to 32.4 kB or 18% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 53.4 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 53.4 kB or 82% of the original size.
Potential reduce by 3.9 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. Szkola280.pl needs all CSS files to be minified and compressed as it can save up to 3.9 kB or 72% of the original size.
Number of requests can be reduced by 9 (32%)
28
19
The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Szkola 280. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
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szkola280.pl accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Some elements have a [tabindex] value greater than 0
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
Image elements do not have [alt] attributes
Links do not have a discernible name
szkola280.pl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
szkola280.pl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
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
Document uses legible font sizes
Tap targets are not sized appropriately
PL
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Szkola280.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it does not match the claimed English language. Our system also found out that Szkola280.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.
{{og_description}}
szkola280.pl
Open Graph description is not detected on the main page of Szkola 280. 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: