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Report Summary

About Website

Click here to check amazing Rondvluchtrotterdam content. Otherwise, check out these important facts you probably never knew about rondvluchtrotterdam.com

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name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value0

0/100

25%

SI (Speed Index)

Value19.2 s

0/100

10%

TBT (Total Blocking Time)

Value2,290 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value1.234

1/100

15%

TTI (Time to Interactive)

Value15.2 s

7/100

10%

rondvluchtrotterdam.com

539 ms

modal.css

88 ms

k2.css

138 ms

mootools-core.js

131 ms

core.js

110 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 61% of them (27 requests) were addressed to the original Rondvluchtrotterdam.com, 18% (8 requests) were made to Apis.google.com and 7% (3 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (539 ms) belongs to the original domain Rondvluchtrotterdam.com.

Content Size

1.2 MB

After Optimization

608.2 kB

In fact, the total size of Rondvluchtrotterdam.com 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. Javascripts take 620.8 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 16.8 kB

Original 23.0 kB
After minification 21.5 kB
After compression 6.2 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 16.8 kB or 73% of the original size.

Image Optimization

-0%

Potential reduce by 82 B

Original 384.4 kB
After minification 384.3 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. Rondvluchtrotterdam images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 419.2 kB

Original 620.8 kB
After minification 589.7 kB
After compression 201.6 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 419.2 kB or 68% of the original size.

CSS Optimization

-88%

Potential reduce by 113.9 kB

Original 130.0 kB
After minification 93.4 kB
After compression 16.0 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. Rondvluchtrotterdam.com needs all CSS files to be minified and compressed as it can save up to 113.9 kB or 88% of the original size.

Requests Now

After Optimization

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rondvluchtrotterdam. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

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 items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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

Language and Encoding

Language Detected

ZH
Language Claimed

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rondvluchtrotterdam.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed English language. Our system also found out that Rondvluchtrotterdam.com 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

rondvluchtrotterdam.com

Open Graph data is detected on the main page of Rondvluchtrotterdam. 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

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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)