7 sec in total
208 ms
6.5 sec
359 ms
Welcome to blau.de homepage info - get ready to check Blau best content for Germany right away, or after learning these important things about blau.de
Günstiger telefonieren, surfen, simsen – ganz einfach mit Blau als Mobilfunkanbieter. ✓ Handys ✓ Laufzeit-Tarife ✓ Prepaid-Karten ᐅ Angebote nutzen
Visit blau.deWe analyzed Blau.de page load time and found that the first response time was 208 ms and then it took 6.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
blau.de performance score
name
value
score
weighting
Value5.9 s
4/100
10%
Value11.6 s
0/100
25%
Value12.6 s
3/100
10%
Value6,700 ms
0/100
30%
Value0.751
6/100
15%
Value18.8 s
3/100
10%
208 ms
397 ms
611 ms
99 ms
576 ms
Our browser made a total of 87 requests to load all elements on the main page. We found that 16% of them (14 requests) were addressed to the original Blau.de, 59% (51 requests) were made to Static2-blau.o9.de and 9% (8 requests) were made to Static-blau.o9.de. The less responsive or slowest element that took the longest time to load (2.7 sec) relates to the external source Uct.eu.usercentrics.eu.
Page size can be reduced by 447.7 kB (40%)
1.1 MB
679.5 kB
In fact, the total size of Blau.de main page is 1.1 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. Javascripts take 820.1 kB which makes up the majority of the site volume.
Potential reduce by 131.3 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. 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 131.3 kB or 84% of the original size.
Potential reduce by 35 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. Blau images are well optimized though.
Potential reduce by 310.6 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 310.6 kB or 38% of the original size.
Potential reduce by 5.7 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. Blau.de has all CSS files already compressed.
Number of requests can be reduced by 28 (35%)
81
53
The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blau. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
blau.de
208 ms
blau.de
397 ms
www.blau.de
611 ms
loader.js
99 ms
adspace-trbo.js
576 ms
trbo_13080_5022a5939d4305b872bc06dee8c941ca.js
295 ms
main.css
846 ms
nk-tarifswitcher-home-tracking-js-code
294 ms
animation-seite-occl-styling-css
388 ms
bundle.js
639 ms
bk-zweitvertrag-tarifuebersicht-css
429 ms
bundle.css
548 ms
vendors.js
576 ms
bundle.js
706 ms
sha256.min.js
546 ms
neuro-tariff-teaser-home-css
398 ms
neuro-tariff-teaser-home-mit-switcher-css
396 ms
neuro-tariff-teaser-home-js
387 ms
neuro-tariff-teaser-home-mit-switcher-js
382 ms
netzabdeckung-promo-bar-css-code
489 ms
newsletter-formular-email-repetition-display-none-css
405 ms
vertrag-kuendigen-js-code
410 ms
jquery.min.js
917 ms
webapp.js
1088 ms
app.min.js
526 ms
bundle_legacy.js
29 ms
languages.json
4 ms
de.json
12 ms
handy-mit-tarif-teaser-bild.webp
815 ms
generisch-tarife-teaser-bild.webp
816 ms
markenshop-apple-teaser-bild.webp
915 ms
markenshop-samsung-teaser-bild.webp
1612 ms
blau-allnet-xs-5gb-dreieck-blau-flex-bild-data.webp
1613 ms
blau-allnet-xs-5gb-teaser-blauer-balken-bild-data.webp
1610 ms
blau-allnet-m-dreieck-blauer-balken-teaser-bild-data.webp
1613 ms
blau-allnet-l-15gb-teaser-lila-balken-bild-data.webp
1613 ms
blau-allnet-xl-20gb-voller-balken-dreieck-blau-flex-teaser-bild-data.webp
1614 ms
blau-allnet-xl-voller-blauer-balken-bild-data.webp
1614 ms
5-g-option-nk-teaser-bild-data.webp
1616 ms
ausgezeichnete-netzqualitaet-teaser-bild-data.webp
1617 ms
testsieger-komplettcheck-info-i-bild-teaser-bild-data.webp
1614 ms
18-geburtstag-promo-generic-teaser-bild-data.webp
1616 ms
deal-finder-generic-teaser-bild-data.webp
1617 ms
xiaomi-generisch-teaser-bild-data.webp
1621 ms
samsung-generisch-bild-data.webp
1619 ms
apple-generisch-teaser-bild-data.webp
1617 ms
einfach-blau-beyond-mai-teaser-bild-data.webp
1621 ms
alle-angebote-image-picture-data.webp
1621 ms
touchpoints-footer-image-picture-data.webp
1617 ms
blau-footer-connect-mobilfunk-netztest-bild-data.webp
1624 ms
blau-footer-connect-komplettcheck-normalnutzer-2024-bild-data.webp
1623 ms
blau-footer-connect-service-apps-bild-data.webp
1622 ms
telefonica-logo-image-picture-data.webp
1620 ms
codepro-regular-webfont.woff
150 ms
icons.woff
149 ms
codepro-bold-webfont.woff
527 ms
cross-domain-bridge.html
242 ms
handy-mit-tarif-teaser-bild.png
993 ms
generisch-tarife-teaser-bild.png
957 ms
markenshop-apple-teaser-bild.png
955 ms
markenshop-samsung-teaser-bild.png
956 ms
blau-allnet-xs-5gb-dreieck-blau-flex-bild-data.png
954 ms
blau-allnet-xs-5gb-teaser-blauer-balken-bild-data.png
955 ms
blau-allnet-m-dreieck-blauer-balken-teaser-bild-data.png
958 ms
blau-allnet-l-15gb-teaser-lila-balken-bild-data.png
957 ms
blau-allnet-xl-20gb-voller-balken-dreieck-blau-flex-teaser-bild-data.png
957 ms
blau-allnet-xl-voller-blauer-balken-bild-data.png
958 ms
5-g-option-nk-teaser-bild-data.png
958 ms
ajax-loader.gif
117 ms
ausgezeichnete-netzqualitaet-teaser-bild-data.png
851 ms
testsieger-komplettcheck-info-i-bild-teaser-bild-data.png
846 ms
1px.png
21 ms
18-geburtstag-promo-generic-teaser-bild-data.png
750 ms
translations-de.json
4 ms
deal-finder-generic-teaser-bild-data.png
2583 ms
xiaomi-generisch-teaser-bild-data.png
2584 ms
samsung-generisch-bild-data.png
2582 ms
apple-generisch-teaser-bild-data.png
2580 ms
einfach-blau-beyond-mai-teaser-bild-data.png
2581 ms
alle-angebote-image-picture-data.png
2579 ms
touchpoints-footer-image-picture-data.png
2640 ms
blau-footer-connect-mobilfunk-netztest-bild-data.png
2637 ms
blau-footer-connect-komplettcheck-normalnutzer-2024-bild-data.png
2633 ms
blau-footer-connect-service-apps-bild-data.png
2639 ms
telefonica-logo-image-picture-data.png
2633 ms
uct
2672 ms
cookie-banner-blau-logo-bild-data.png
97 ms
blau.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.
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
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
blau.de 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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
blau.de SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
DE
DE
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Blau.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 Blau.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.
blau.de
Open Graph data is detected on the main page of Blau. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: