4.7 sec in total
1.2 sec
3.3 sec
145 ms
Welcome to jgiesen.de homepage info - get ready to check Jgiesen best content for United States right away, or after learning these important things about jgiesen.de
Java-Applets und Materialien zu Physik, Astronomie, Mathematik, Informatik fuer Physik-Interessierte, Schule und Unterricht
Visit jgiesen.deWe analyzed Jgiesen.de page load time and found that the first response time was 1.2 sec and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
jgiesen.de performance score
name
value
score
weighting
Value1.1 s
100/100
10%
Value1.1 s
100/100
25%
Value2.0 s
99/100
10%
Value10 ms
100/100
30%
Value0
100/100
15%
Value1.1 s
100/100
10%
1167 ms
349 ms
354 ms
180 ms
352 ms
Our browser made a total of 35 requests to load all elements on the main page. We found that all of those requests were addressed to Jgiesen.de and no external sources were called. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Jgiesen.de.
Page size can be reduced by 16.0 kB (79%)
20.3 kB
4.4 kB
In fact, the total size of Jgiesen.de main page is 20.3 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. HTML takes 16.5 kB which makes up the majority of the site volume.
Potential reduce by 13.0 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 4.3 kB, which is 26% 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 13.0 kB or 79% of the original size.
Potential reduce by 3.0 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 3.0 kB or 78% of the original size.
We found no issues to fix!
34
34
The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jgiesen. According to our analytics all requests are already optimized.
jgiesen.de
1167 ms
welcome.js
349 ms
phuas.gif
354 ms
sitemap.gif
180 ms
english.gif
352 ms
inEnglish.gif
355 ms
GeoAstroApplets.gif
358 ms
geoastrotext.gif
360 ms
java.gif
356 ms
JavaText.gif
526 ms
chaos.gif
737 ms
chaosText.gif
530 ms
mac.gif
529 ms
macText.gif
530 ms
wer.gif
531 ms
werText.gif
989 ms
divers.gif
990 ms
diversText.gif
996 ms
quiz.gif
991 ms
quizText.gif
997 ms
astronomie.gif
992 ms
astronomietext.gif
1440 ms
html.gif
1439 ms
htmltext.gif
1444 ms
erdesonne.gif
1440 ms
erdesonnetext.gif
1441 ms
uvBild.gif
1442 ms
uvText.gif
1771 ms
VenusTransitOrdner.gif
1768 ms
venusGermanText.gif
1777 ms
MercuryTransitOrdner.gif
1769 ms
mercuryText.gif
1771 ms
back.gif
1944 ms
books4.gif
2144 ms
email.gif
1943 ms
jgiesen.de accessibility score
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
Links do not have a discernible name
jgiesen.de best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
jgiesen.de SEO score
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
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jgiesen.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 Jgiesen.de main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
jgiesen.de
Open Graph description is not detected on the main page of Jgiesen. 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: