5.8 sec in total
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Visit oreilly.de now to see the best up-to-date O Reilly content for Germany and also check out these interesting facts you probably never knew about oreilly.de
O’Reilly-Bücher: Lösungen (vor-) programmiert. O’Reilly-Bücher vermitteln Ihnen praxisorientiertes Know-how zu zukunftsweisenden Technologien und Methoden aus IT, Marketing und Business. Unsere Autore...
Visit oreilly.deWe analyzed Oreilly.de page load time and found that the first response time was 353 ms and then it took 5.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
oreilly.de performance score
name
value
score
weighting
Value3.5 s
34/100
10%
Value4.2 s
43/100
25%
Value11.7 s
4/100
10%
Value390 ms
68/100
30%
Value0.03
100/100
15%
Value8.7 s
36/100
10%
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Our browser made a total of 77 requests to load all elements on the main page. We found that 97% of them (75 requests) were addressed to the original Oreilly.de, 1% (1 request) were made to Stats.wp.com and 1% (1 request) were made to Pixel.wp.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Oreilly.de.
Page size can be reduced by 210.3 kB (8%)
2.8 MB
2.6 MB
In fact, the total size of Oreilly.de main page is 2.8 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. 70% of websites need less resources to load. Images take 2.4 MB which makes up the majority of the site volume.
Potential reduce by 100.8 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 100.8 kB or 83% of the original size.
Potential reduce by 107.3 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. O Reilly images are well optimized though.
Potential reduce by 255 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.
Potential reduce by 1.9 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. Oreilly.de has all CSS files already compressed.
Number of requests can be reduced by 34 (50%)
68
34
The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of O Reilly. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.
oreilly.de
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oreilly.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
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
oreilly.de best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
oreilly.de SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Page is blocked from indexing
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
DE
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Oreilly.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 Oreilly.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.
oreilly.de
Open Graph data is detected on the main page of O Reilly. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: