3.9 sec in total
330 ms
3.2 sec
455 ms
Visit telefonbuch.com now to see the best up-to-date Telefonbuch content for Germany and also check out these interesting facts you probably never knew about telefonbuch.com
Telefonnummern und Adressen aus aller Welt finden. Im Telefonbuch, Branchenbuch, Gelbe Seiten - weltweit. Präsentiert von Dumrath & Fassnacht
Visit telefonbuch.comWe analyzed Telefonbuch.com page load time and found that the first response time was 330 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
telefonbuch.com performance score
name
value
score
weighting
Value4.2 s
20/100
10%
Value4.5 s
37/100
25%
Value6.8 s
35/100
10%
Value140 ms
96/100
30%
Value0.106
88/100
15%
Value4.5 s
82/100
10%
330 ms
472 ms
221 ms
33 ms
303 ms
Our browser made a total of 43 requests to load all elements on the main page. We found that 67% of them (29 requests) were addressed to the original Telefonbuch.com, 9% (4 requests) were made to Detemedien.de and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Telefonbuch.com.
Page size can be reduced by 162.4 kB (44%)
371.9 kB
209.5 kB
In fact, the total size of Telefonbuch.com main page is 371.9 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. 25% of websites need less resources to load. Images take 183.2 kB which makes up the majority of the site volume.
Potential reduce by 134.3 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 24.2 kB, which is 16% 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 134.3 kB or 87% of the original size.
Potential reduce by 22.1 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, Telefonbuch needs image optimization as it can save up to 22.1 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 6.0 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 6.0 kB or 18% of the original size.
Number of requests can be reduced by 18 (46%)
39
21
The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Telefonbuch. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
telefonbuch.com
330 ms
de
472 ms
style.css
221 ms
cookieconsent.latest.min.js
33 ms
suche_telefonbuch_com.js
303 ms
sizzle.min.js
221 ms
jquery.checkbox.js
225 ms
jquery.cookie.js
221 ms
jquery.caret.1.02.min.js
1238 ms
plugins.js
1443 ms
script.js
251 ms
iam.js
392 ms
App_DirectoryWorld.png
479 ms
bg-pattern.jpg
355 ms
header-pattern.gif
375 ms
logo_de.png
592 ms
instructions_de.png
625 ms
control-bg.png
541 ms
close_reset-btn.png
586 ms
icons.png
726 ms
new.gif
776 ms
header-shadow.png
800 ms
young_lady.jpg
1000 ms
undefined-result.png
941 ms
searchlist-item.png
990 ms
additionallist-item.png
988 ms
dastelefonbuch_logo.png
1126 ms
ooetb_logo.png
1175 ms
ooetb_logo_positiv.png
1175 ms
start_tb.gif
98 ms
start_oetb.gif
194 ms
start_gs.gif
196 ms
footer-pattern.gif
934 ms
jquery-1.6.2rc1.js
8 ms
ga.js
30 ms
qs.ioam.de
189 ms
tx.io
191 ms
print.css
211 ms
__utm.gif
13 ms
tx.io
97 ms
empty.png
194 ms
filter-checkbox.png
187 ms
update.js
9 ms
telefonbuch.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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Some elements have a [tabindex] value greater than 0
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
telefonbuch.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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Issues were logged in the Issues panel in Chrome Devtools
telefonbuch.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
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
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 uses legible font sizes
Tap targets are not sized appropriately
DE
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Telefonbuch.com can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it does not match the claimed English language. Our system also found out that Telefonbuch.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.
telefonbuch.com
Open Graph description is not detected on the main page of Telefonbuch. 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: