3.5 sec in total
682 ms
2.4 sec
380 ms
Visit hach-wie-einfach.de now to see the best up-to-date Hach Wie Einfach content and also check out these interesting facts you probably never knew about hach-wie-einfach.de
Chemie, Biologie und Biochemie einfach erklärt, leicht, anschaulich und verständlicht. Sie erhalten Literatur im epub, pdf, Kindle mobi-(amazon) oder dnl Format. Eine ideale Hilfe für Schüler und alle...
Visit hach-wie-einfach.deWe analyzed Hach-wie-einfach.de page load time and found that the first response time was 682 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
hach-wie-einfach.de performance score
name
value
score
weighting
Value1.5 s
95/100
10%
Value7.0 s
6/100
25%
Value2.8 s
95/100
10%
Value820 ms
35/100
30%
Value0.021
100/100
15%
Value3.3 s
94/100
10%
682 ms
12 ms
205 ms
1018 ms
314 ms
Our browser made a total of 31 requests to load all elements on the main page. We found that 87% of them (27 requests) were addressed to the original Hach-wie-einfach.de, 6% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to W3.org. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Hach-wie-einfach.de.
Page size can be reduced by 228.7 kB (17%)
1.4 MB
1.1 MB
In fact, the total size of Hach-wie-einfach.de main page is 1.4 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. 40% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.
Potential reduce by 13.8 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 13.8 kB or 67% of the original size.
Potential reduce by 214.9 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, Hach Wie Einfach needs image optimization as it can save up to 214.9 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 34 B
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. This website has mostly compressed JavaScripts.
We found no issues to fix!
30
30
The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Hach Wie Einfach. According to our analytics all requests are already optimized.
hach-wie-einfach.de
682 ms
ga.js
12 ms
back.gif
205 ms
page_header.png
1018 ms
alpha%20teilchen.png
314 ms
button_home.jpg
331 ms
button_Chemie_normal.jpg
322 ms
button_Biologie_normal.jpg
329 ms
button_links.jpg
321 ms
button_gb.jpg
432 ms
button_impressum.jpg
439 ms
metallgitter_red.png
644 ms
egg_and_1_sperm_red.jpg
549 ms
Oxygen.png
546 ms
D-glucose_red.png
650 ms
co2_red.png
651 ms
cell_red.jpg
858 ms
Ozone.png
665 ms
orbitale_sp3_methan.png
1676 ms
willkommwn_txt.png
769 ms
__utm.gif
14 ms
valid-html401
30 ms
vcss-blue
30 ms
smiley_hand_with_heart1_w100.png
673 ms
file_upload.png
687 ms
button_home_over.jpg
123 ms
button_links_over.jpg
120 ms
button_gb_over.jpg
129 ms
button_impressum_over.jpg
120 ms
button_Chemie_over.jpg
138 ms
button_Biologie_over.jpg
125 ms
hach-wie-einfach.de accessibility score
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Links do not have a discernible name
hach-wie-einfach.de best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
hach-wie-einfach.de SEO score
DE
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Hach-wie-einfach.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 Hach-wie-einfach.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.
hach-wie-einfach.de
Open Graph description is not detected on the main page of Hach Wie Einfach. 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: