Access nextfoto.cz. Rozsáhlá fotobanka nejenom společenských akcí v Praze

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

78/100

25%

SI (Speed Index)

Value4.9 s

64/100

10%

TBT (Total Blocking Time)

Value1,370 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.9 s

78/100

10%

nextfoto.cz

327 ms

www.nextfoto.cz

392 ms

style.css

110 ms

jquery.js

325 ms

slimbox2-detail.js

217 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that all of those requests were addressed to Nextfoto.cz and no external sources were called. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Nextfoto.cz.

Content Size

12.2 MB

After Optimization

10.9 MB

In fact, the total size of Nextfoto.cz main page is 12.2 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 12.0 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 26.0 kB

Original 34.2 kB
After minification 33.8 kB
After compression 8.2 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 26.0 kB or 76% of the original size.

Image Optimization

-10%

Potential reduce by 1.2 MB

Original 12.0 MB
After minification 10.9 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. Nextfoto images are well optimized though.

JavaScript Optimization

-82%

Potential reduce by 108.7 kB

Original 132.6 kB
After minification 80.3 kB
After compression 23.9 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 108.7 kB or 82% of the original size.

CSS Optimization

-83%

Potential reduce by 8.1 kB

Original 9.7 kB
After minification 8.6 kB
After compression 1.7 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. Nextfoto.cz needs all CSS files to be minified and compressed as it can save up to 8.1 kB or 83% of the original size.

Requests Now

After Optimization

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nextfoto. According to our analytics all requests are already optimized.

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 interpretation of your content by users in different locales.

High

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

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

Form elements do not have associated labels

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

Language and Encoding

Language Detected

CS
Language Claimed

N/A
Encoding

WINDOWS-1250

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nextfoto.cz can be misinterpreted by Google and other search engines. Our service has detected that Czech 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 Nextfoto.cz main page’s claimed encoding is windows-1250. 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

nextfoto.cz

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

Rozsáhlá fotobanka nejenom společenských akcí v Praze - nextfoto.cz

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

nextfoto.cz

www.nextfoto.cz

style.css

jquery.js

slimbox2-detail.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

nextfoto.cz

www.nextfoto.cz

style.css

jquery.js

slimbox2-detail.js

fce.js

slimbox2.css

telo.jpg

logo.jpg

prihlasit.gif

line.jpg

menusel.jpg

menu.jpg

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