Access nautilus.org.pl. Fundacja Nautilus

name

value

score

weighting

FCP (First Contentful Paint)

Value6.1 s

3/100

10%

LCP (Largest Contentful Paint)

Value28.7 s

0/100

25%

SI (Speed Index)

Value11.8 s

4/100

10%

TBT (Total Blocking Time)

Value4,350 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value18.2 s

3/100

10%

nautilus.org.pl

269 ms

nautilus.org.pl

1197 ms

font-awesome.min.css

357 ms

google_font_merriweather.min.css

361 ms

bootstrap_base.min.css

716 ms

Our browser made a total of 133 requests to load all elements on the main page. We found that 74% of them (99 requests) were addressed to the original Nautilus.org.pl, 7% (9 requests) were made to Youtube.com and 6% (8 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Nautilus.org.pl.

Content Size

3.6 MB

After Optimization

3.1 MB

In fact, the total size of Nautilus.org.pl main page is 3.6 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. Only a small number of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 129.2 kB

Original 165.9 kB
After minification 157.0 kB
After compression 36.7 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 129.2 kB or 78% of the original size.

Image Optimization

-6%

Potential reduce by 159.9 kB

Original 2.9 MB
After minification 2.7 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. Nautilus images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 11.5 kB

Original 312.9 kB
After minification 312.9 kB
After compression 301.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-55%

Potential reduce by 121.5 kB

Original 221.3 kB
After minification 207.7 kB
After compression 99.8 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. Nautilus.org.pl needs all CSS files to be minified and compressed as it can save up to 121.5 kB or 55% of the original size.

Requests Now

121

After Optimization

The browser has sent 121 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nautilus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 11 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

Page has valid source maps

Search Engine Optimization Advices

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

High

Image elements do not have [alt] attributes

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 Nautilus.org.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 Nautilus.org.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

nautilus.org.pl

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

Fundacja Nautilus - Strona główna

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

nautilus.org.pl

nautilus.org.pl

font-awesome.min.css

google_font_merriweather.min.css

bootstrap_base.min.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

nautilus.org.pl

nautilus.org.pl

font-awesome.min.css

google_font_merriweather.min.css

bootstrap_base.min.css

skynet_bootstrap.min.css

social-sharing.min.css

page_bootstrap_big.min.css

rotator_bootstrap_big.min.css

bjqs.css

jquery-3.2.1.min.js

mobile_detect.js

notify.min.js

nautilus_functions_bootstrap.min.js

nautilus_popups.min.js

nautilus_skynet.min.js

ajax_functions.min.js

prototype.js

effects_google.min.js

bjqs-1.3.min.js

typewriter.min.js

nautilus_social-sharing.js

platform.js

jssor.slider.mini.js

rotator_responsive.js

css2

sea-top.gif

sea-bot.gif

icon_facebook.png

icon_twitter.png

icon_instagram.png

icon_tiktok.png

wave.svg

bannerLeft.png

206.jpg

more_small.png

uk-flag27.png

rss27.png

chat27.png

more_rotator.png

_bigpictures.jpg

banner__bigpictures.jpg

banner__bigpictures.jpg