2.5 sec in total
261 ms
2 sec
249 ms
Welcome to zertifizierung-portal.de homepage info - get ready to check Zertifizierung Portal best content right away, or after learning these important things about zertifizierung-portal.de
zertifizierung-portal.de bietet Übungsexamen zur Vorbereitung auf IT-Zertifizierungsprüfungen. Unsere Prüfungsunterlagen mit den originalen Prüfungsfragen und Antworten bei www.zertifizierung-portal.d...
Visit zertifizierung-portal.deWe analyzed Zertifizierung-portal.de page load time and found that the first response time was 261 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
zertifizierung-portal.de performance score
name
value
score
weighting
Value2.6 s
64/100
10%
Value4.4 s
38/100
25%
Value3.7 s
85/100
10%
Value0 ms
100/100
30%
Value0.056
98/100
15%
Value2.6 s
98/100
10%
261 ms
136 ms
146 ms
274 ms
143 ms
Our browser made a total of 32 requests to load all elements on the main page. We found that 84% of them (27 requests) were addressed to the original Zertifizierung-portal.de, 9% (3 requests) were made to Image.providesupport.com and 3% (1 request) were made to Js.tongji.linezing.com. The less responsive or slowest element that took the longest time to load (959 ms) relates to the external source Dt.tongji.linezing.com.
Page size can be reduced by 136.5 kB (42%)
322.9 kB
186.4 kB
In fact, the total size of Zertifizierung-portal.de main page is 322.9 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. 20% of websites need less resources to load. Images take 183.4 kB which makes up the majority of the site volume.
Potential reduce by 22.2 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. This page needs HTML code to be minified as it can gain 5.2 kB, which is 18% 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 22.2 kB or 77% of the original size.
Potential reduce by 38.3 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. Obviously, Zertifizierung Portal needs image optimization as it can save up to 38.3 kB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 65.5 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 65.5 kB or 68% of the original size.
Potential reduce by 10.5 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. Zertifizierung-portal.de needs all CSS files to be minified and compressed as it can save up to 10.5 kB or 75% of the original size.
Number of requests can be reduced by 8 (29%)
28
20
The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zertifizierung Portal. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.
zertifizierung-portal.de
261 ms
main.css
136 ms
default.css
146 ms
jquery.js
274 ms
dialog.js
143 ms
slidePlayer.js
150 ms
tongji.js
751 ms
logo.jpg
144 ms
searchkey_bg.jpg
161 ms
btn-search.gif
75 ms
navbg_03.png
95 ms
navbg_05.png
95 ms
navbg_07.png
98 ms
navbg_09.png
158 ms
kefu.gif
168 ms
fc6962b1f8e249a98f52b9592c13ab29.jpg
313 ms
6fc2ef2b791241368b2a70416903abbf.jpg
415 ms
abc1.gif
220 ms
abc2.gif
235 ms
abc3.gif
236 ms
paypal.png
266 ms
img_lab.gif
294 ms
safe-standard.js
36 ms
bg_pop_dot.gif
310 ms
bg_code.gif
312 ms
bg_code_newrelease.gif
342 ms
icon_learnmore.gif
341 ms
bg_venodr_title.gif
350 ms
h243w2.gif
381 ms
offline-1330514080.gif
5 ms
10jhxt47cag5y0stin5sx7a3pm
20 ms
tongji.do
959 ms
zertifizierung-portal.de 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.
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
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
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
zertifizierung-portal.de 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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
zertifizierung-portal.de SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
DE
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zertifizierung-portal.de can be misinterpreted by Google and other search engines. Our service has detected that German 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 Zertifizierung-portal.de 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.
zertifizierung-portal.de
Open Graph description is not detected on the main page of Zertifizierung Portal. 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: