64.4 sec in total
12.5 sec
51.6 sec
265 ms
Welcome to wolf-lab.com homepage info - get ready to check Wolf Lab best content right away, or after learning these important things about wolf-lab.com
Wolf-lab(沃尔夫网络实验室),专注于初,中,高级各级别网络工程师的培训与认证,包括hcie培训,ccie培训,hcia培训,ccna学习,ccnp培训,hcip培训等
Visit wolf-lab.comWe analyzed Wolf-lab.com page load time and found that the first response time was 12.5 sec and then it took 51.9 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 31 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
wolf-lab.com performance score
name
value
score
weighting
Value2.6 s
62/100
10%
Value11.9 s
0/100
25%
Value14.0 s
1/100
10%
Value640 ms
46/100
30%
Value1.326
0/100
15%
Value9.9 s
27/100
10%
12511 ms
1024 ms
2973 ms
19571 ms
5827 ms
Our browser made a total of 74 requests to load all elements on the main page. We found that 92% of them (68 requests) were addressed to the original Wolf-lab.com, 8% (6 requests) were made to Pub.idqqimg.com. The less responsive or slowest element that took the longest time to load (20.3 sec) belongs to the original domain Wolf-lab.com.
Page size can be reduced by 104.0 kB (48%)
217.1 kB
113.1 kB
In fact, the total size of Wolf-lab.com main page is 217.1 kB. 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 10% of websites need less resources to load. Javascripts take 94.2 kB which makes up the majority of the site volume.
Potential reduce by 41.5 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 10.1 kB, which is 20% 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 41.5 kB or 83% of the original size.
Potential reduce by 1.8 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. Wolf Lab images are well optimized though.
Potential reduce by 60.6 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 60.6 kB or 64% of the original size.
Potential reduce by 210 B
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. Wolf-lab.com needs all CSS files to be minified and compressed as it can save up to 210 B or 38% of the original size.
Number of requests can be reduced by 19 (45%)
42
23
The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Wolf Lab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
wolf-lab.com
12511 ms
style.css
1024 ms
index.css
2973 ms
jquery-1.7.min.js
19571 ms
jquery.flexslider-min.js
5827 ms
jQuery.infiniteCarousel.js
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thea3.js
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9151 ms
wolf-lab.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.
Definition list items are not wrapped in <dl> elements
Names and labels
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.
Impact
Issue
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
wolf-lab.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
wolf-lab.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Mobile Friendly
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/).
Impact
Issue
Document doesn't use legible font sizes
ZH
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Wolf-lab.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 Wolf-lab.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.
wolf-lab.com
Open Graph description is not detected on the main page of Wolf Lab. 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: