9.5 sec in total
377 ms
8.8 sec
350 ms
Welcome to alertdiver.eu homepage info - get ready to check Alert Diver best content for Poland right away, or after learning these important things about alertdiver.eu
Visit alertdiver.euWe analyzed Alertdiver.eu page load time and found that the first response time was 377 ms and then it took 9.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
alertdiver.eu performance score
name
value
score
weighting
Value3.3 s
41/100
10%
Value6.2 s
11/100
25%
Value7.0 s
32/100
10%
Value3,100 ms
2/100
30%
Value0
100/100
15%
Value13.7 s
10/100
10%
377 ms
1459 ms
676 ms
160 ms
235 ms
Our browser made a total of 88 requests to load all elements on the main page. We found that 70% of them (62 requests) were addressed to the original Alertdiver.eu, 3% (3 requests) were made to Google-analytics.com and 3% (3 requests) were made to W.sharethis.com. The less responsive or slowest element that took the longest time to load (5.1 sec) relates to the external source Daneurope.org.
Page size can be reduced by 451.5 kB (63%)
721.8 kB
270.3 kB
In fact, the total size of Alertdiver.eu main page is 721.8 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. 35% of websites need less resources to load. Javascripts take 422.1 kB which makes up the majority of the site volume.
Potential reduce by 84.4 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 84.4 kB or 85% of the original size.
Potential reduce by 12.3 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. Obviously, Alert Diver needs image optimization as it can save up to 12.3 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 277.3 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 277.3 kB or 66% of the original size.
Potential reduce by 77.4 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. Alertdiver.eu needs all CSS files to be minified and compressed as it can save up to 77.4 kB or 81% of the original size.
Number of requests can be reduced by 23 (28%)
81
58
The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alert Diver. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
alertdiver.eu
377 ms
www.alertdiver.eu
1459 ms
home
676 ms
buttons.js
160 ms
css.jsp
235 ms
jg_css.jsp
237 ms
css.jsp
243 ms
barebone.jsp
636 ms
main.css
261 ms
javascript.js
260 ms
vivieb.slidermanager.js
458 ms
image_gallery
5080 ms
rss.png
220 ms
input_shadow.png
230 ms
search.png
230 ms
logo.jpg
362 ms
image_gallery
397 ms
image_gallery
398 ms
decoration.png
356 ms
image_gallery
575 ms
image_gallery
489 ms
image_gallery
596 ms
image_gallery
613 ms
image_gallery
656 ms
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657 ms
image_gallery
735 ms
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938 ms
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935 ms
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843 ms
image_gallery
1267 ms
image_gallery
1019 ms
image_gallery
1381 ms
image_gallery
1188 ms
image_gallery
1421 ms
nav_item_off.png
1181 ms
image_gallery
1240 ms
ga.js
11 ms
view_article_content
1380 ms
view_article_content
1385 ms
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1412 ms
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1432 ms
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1534 ms
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1642 ms
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1636 ms
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1701 ms
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1794 ms
view_article_content
1799 ms
getAllAppDefault.esi
166 ms
__utm.gif
16 ms
__utm.gif
20 ms
view_article_content
1790 ms
collect
57 ms
collect
63 ms
view_article_content
1784 ms
view_article_content
1798 ms
getSegment.php
13 ms
checkOAuth.esi
89 ms
t.dhj
59 ms
t.dhj
40 ms
cm
10 ms
x35248
113 ms
s-3271.xgi
13 ms
hbpix
141 ms
pixel
21 ms
9 ms
xrefid.xgi
7 ms
10 ms
pixel
16 ms
2981
24 ms
index.a8fc48294ca4cc10eb440189d9f22d7c.html
25 ms
buttons.ab966a004186897711de4a5ed256c924.css
17 ms
st.125da8bfe70ad3e00a35a6e4c65d8bc5.js
16 ms
image_gallery
699 ms
spinner.gif
637 ms
nav_item_on.png
640 ms
sharethis_16.png
23 ms
image_gallery
711 ms
image_gallery
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598 ms
image_gallery
825 ms
image_gallery
635 ms
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669 ms
image_gallery
703 ms
image_gallery
657 ms
image_gallery
560 ms
image_gallery
697 ms
alertdiver.eu accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-*] attributes do not match their roles
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
<frame> or <iframe> elements do not have a title
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
alertdiver.eu 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
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
alertdiver.eu SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Document doesn't have a valid hreflang
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
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Alertdiver.eu can be misinterpreted by Google and other search engines. Our service has detected that English 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 Alertdiver.eu 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.
alertdiver.eu
Open Graph description is not detected on the main page of Alert Diver. 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: