2.3 sec in total
605 ms
1.6 sec
87 ms
Visit opn-city.de now to see the best up-to-date Opn City content and also check out these interesting facts you probably never knew about opn-city.de
Webmaster Tools
Visit opn-city.deWe analyzed Opn-city.de page load time and found that the first response time was 605 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
opn-city.de performance score
name
value
score
weighting
Value2.5 s
66/100
10%
Value3.3 s
70/100
25%
Value3.1 s
93/100
10%
Value40 ms
100/100
30%
Value0.089
92/100
15%
Value3.4 s
93/100
10%
605 ms
351 ms
333 ms
333 ms
344 ms
Our browser made a total of 44 requests to load all elements on the main page. We found that 95% of them (42 requests) were addressed to the original Opn-city.de, 5% (2 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (605 ms) belongs to the original domain Opn-city.de.
Page size can be reduced by 69.2 kB (36%)
190.6 kB
121.4 kB
In fact, the total size of Opn-city.de main page is 190.6 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. Javascripts take 145.8 kB which makes up the majority of the site volume.
Potential reduce by 16.9 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 16.9 kB or 78% of the original size.
Potential reduce by 310 B
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. Opn City images are well optimized though.
Potential reduce by 50.2 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 50.2 kB or 34% of the original size.
Potential reduce by 1.8 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. Opn-city.de needs all CSS files to be minified and compressed as it can save up to 1.8 kB or 22% of the original size.
Number of requests can be reduced by 36 (84%)
43
7
The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Opn City. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
opn-city.de
605 ms
style.css
351 ms
theme.css
333 ms
calendar.css
333 ms
dropdownmenu.css
344 ms
mediagallery.css
353 ms
opn_default.css
346 ms
opntooltip.js
427 ms
opnjavascript.js
429 ms
opnformular.js
439 ms
opnajax.js
441 ms
menu.js
445 ms
contentmix.js
448 ms
theme.js
521 ms
menusidebox.js
524 ms
opn_theme.js
535 ms
plusone.js
20 ms
cb=gapi.loaded_0
5 ms
awaitbg.gif
98 ms
await.gif
97 ms
headermiddel.png
96 ms
ur-author.gif
98 ms
space.gif
98 ms
group-3.gif
96 ms
group-4.gif
190 ms
icon_select.gif
191 ms
logout.gif
191 ms
ur-admin.gif
192 ms
ur-guest.gif
193 ms
ur-moderator.gif
192 ms
ur-anony.gif
284 ms
ur-registered.gif
285 ms
right_small.gif
286 ms
headertop.gif
280 ms
headermiddelbg.png
280 ms
headerdown.gif
280 ms
blank.gif
367 ms
button.gif
368 ms
sideboxleft.gif
371 ms
up.png
371 ms
inputbg.gif
369 ms
down.png
369 ms
crumbs.gif
449 ms
footerbar.gif
450 ms
opn-city.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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Some elements have a [tabindex] value greater than 0
opn-city.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
opn-city.de SEO score
DE
DE
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Opn-city.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Opn-city.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.
opn-city.de
Open Graph description is not detected on the main page of Opn City. 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: