Access historia.trojmiasto.pl. Historia Trójmiasta - poznaj sekrety historii Gdańska, Gdyni i Sopotu.

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value4.9 s

29/100

25%

SI (Speed Index)

Value9.1 s

13/100

10%

TBT (Total Blocking Time)

Value990 ms

28/100

30%

CLS (Cumulative Layout Shift)

Value0.108

88/100

15%

TTI (Time to Interactive)

Value11.1 s

20/100

10%

historia.trojmiasto.pl

2506 ms

footer.css

474 ms

jquery.min.js

593 ms

jquery.scrollTo.js

591 ms

url.js

234 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 12% of them (11 requests) were addressed to the original Historia.trojmiasto.pl, 37% (33 requests) were made to S-trojmiasto.pl and 10% (9 requests) were made to 2.static.s-trojmiasto.pl. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain Historia.trojmiasto.pl.

Content Size

1.2 MB

After Optimization

878.9 kB

In fact, the total size of Historia.trojmiasto.pl main page is 1.2 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. 50% of websites need less resources to load. Images take 668.9 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 79.0 kB

Original 101.0 kB
After minification 81.6 kB
After compression 22.0 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 19.3 kB, which is 19% 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 79.0 kB or 78% of the original size.

Image Optimization

-9%

Potential reduce by 61.5 kB

Original 668.9 kB
After minification 607.4 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. Historia Trojmiasto images are well optimized though.

JavaScript Optimization

-46%

Potential reduce by 210.3 kB

Original 457.5 kB
After minification 448.2 kB
After compression 247.2 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 210.3 kB or 46% of the original size.

CSS Optimization

-88%

Potential reduce by 16.2 kB

Original 18.5 kB
After minification 13.8 kB
After compression 2.3 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. Historia.trojmiasto.pl needs all CSS files to be minified and compressed as it can save up to 16.2 kB or 88% of the original size.

Requests Now

After Optimization

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Historia Trojmiasto. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 4 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 experience of reading tabular or list data using assistive technology, like a screen reader.

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

High

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

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

Links do not have a discernible name

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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

High

Links are not crawlable

Language and Encoding

Language Detected

PL
Language Claimed

PL
Encoding

ISO-8859-2

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Historia.trojmiasto.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 Historia.trojmiasto.pl main page’s claimed encoding is iso-8859-2. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

historia.trojmiasto.pl

Open Graph data is detected on the main page of Historia Trojmiasto. 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

Historia Trójmiasta - poznaj sekrety historii Gdańska, Gdyni i Sopotu.

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

historia.trojmiasto.pl

footer.css

jquery.min.js

jquery.scrollTo.js

url.js

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

historia.trojmiasto.pl

footer.css

jquery.min.js

jquery.scrollTo.js

url.js

OpenSans.css

advertisement.js

slider_tsi.css

slider_tsi_wide.css

jquery.jcarousel.pack.js

slider.js

logo_new.gif

32106.html

adv_view.php

216507-Gotycki-kapitel-z-zamku-krzyzackiego__kr.jpg

1555358-Gdanszczanie-uczcili-Pamiec-Zolnierzy-Wykletych__kr.jpg

1552102-Pikieta-Mlodziezy-Wszechpolskiej-w-sprawie-Lecha-Walesy__kr.jpg

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1555049-Marsz-ku-czci-Zolnierzy-Wykletych-w-Gdyni__kr.jpg

1555033-Gdynski-Marsz-Pamieci-Zolnierzy-Wykletych__kr.jpg

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header_historia.png

navi_icons_new_2016.png

logo_tv.png

navi_more_new.png

search_box_shadow.jpg

search_new_button_historia.png

arrow-end.png

wykrzyknik.png

timeline_spinner.gif

ajax-loader-small.gif

blank.gif

mapa_historia.png

intro_gdansk_neptun.jpg

intro_sopot_molo.jpg

intro_gdynia_zlota_rybka.jpg

arrows_show_events.png