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26

Performance

Renders faster than
45% of other websites
74

Accessibility

Visual factors better than
that of 40% of websites
58

Best Practices

More advanced features
available than in
20% of websites
75

SEO

Google-friendlier than
32% of websites

First Response

575 ms

Resources Loaded

22.1 sec

Page Rendered

6.8 sec

About Website

Click here to check amazing Zervids content for Algeria. Otherwise, check out these important facts you probably never knew about zervids.com

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Visit zervids.com

Key Findings

We analyzed Zervids.com page load time and found that the first response time was 575 ms and then it took 28.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value36.5 s

0/100

25%

SI (Speed Index)

Value6.2 s

43/100

10%

TBT (Total Blocking Time)

Value5,250 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.021

100/100

15%

TTI (Time to Interactive)

Value10.6 s

23/100

10%

index.php

575 ms

animate.css

226 ms

index.css

303 ms

tj.js

285 ms

common.js

284 ms

Our browser made a total of 96 requests to load all elements on the main page. We found that 89% of them (85 requests) were addressed to the original Zervids.com, 6% (6 requests) were made to Hm.baidu.com and 1% (1 request) were made to 0. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source Qdn.gov.cn.

Content Size

4.3 MB

After Optimization

3.1 MB

In fact, the total size of Zervids.com main page is 4.3 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. 60% of websites need less resources to load. Images take 4.2 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 95.3 kB

Original 111.0 kB
After minification 72.0 kB
After compression 15.7 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. This page needs HTML code to be minified as it can gain 39.0 kB, which is 35% 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 95.3 kB or 86% of the original size.

Image Optimization

-27%

Potential reduce by 1.1 MB

Original 4.2 MB
After minification 3.0 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. Obviously, Zervids needs image optimization as it can save up to 1.1 MB or 27% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-53%

Potential reduce by 1.3 kB

Original 2.5 kB
After minification 1.9 kB
After compression 1.2 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 1.3 kB or 53% of the original size.

CSS Optimization

-14%

Potential reduce by 4.3 kB

Original 30.6 kB
After minification 30.5 kB
After compression 26.3 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. Zervids.com needs all CSS files to be minified and compressed as it can save up to 4.3 kB or 14% of the original size.

Requests Now

93

After Optimization

80

The browser has sent 93 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zervids. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 8 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

Definition list items are not wrapped in <dl> elements

These are opportunities to improve keyboard navigation in your application.

High

[id] attributes on active, focusable elements are not unique

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

Image elements do not have [alt] attributes

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

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

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

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

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zervids.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Zervids.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

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