458 ms in total
13 ms
137 ms
308 ms
Click here to check amazing Concatenation content for Poland. Otherwise, check out these important facts you probably never knew about concatenation.org
Science & Science Fiction News & Reviews of books, films & science
Visit concatenation.orgWe analyzed Concatenation.org page load time and found that the first response time was 13 ms and then it took 445 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.
concatenation.org performance score
name
value
score
weighting
Value1.4 s
97/100
10%
Value2.8 s
83/100
25%
Value1.4 s
100/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value1.4 s
100/100
10%
13 ms
92 ms
10 ms
9 ms
9 ms
Our browser made a total of 11 requests to load all elements on the main page. We found that all of those requests were addressed to Concatenation.org and no external sources were called. The less responsive or slowest element that took the longest time to load (92 ms) belongs to the original domain Concatenation.org.
Page size can be reduced by 16.5 kB (9%)
175.9 kB
159.5 kB
In fact, the total size of Concatenation.org main page is 175.9 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. 20% of websites need less resources to load. Images take 157.1 kB which makes up the majority of the site volume.
Potential reduce by 12.4 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 12.4 kB or 68% of the original size.
Potential reduce by 3.7 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. Concatenation images are well optimized though.
Potential reduce by 384 B
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. Concatenation.org needs all CSS files to be minified and compressed as it can save up to 384 B or 59% of the original size.
We found no issues to fix!
9
9
The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Concatenation. According to our analytics all requests are already optimized.
concatenation.org
13 ms
www.concatenation.org
92 ms
title2.css
10 ms
science_fiction_cov1.jpg
9 ms
sci_fi_cov2.jpg
9 ms
science_fiction_news_cov3.jpg
11 ms
science_fact_and_fiction_cov7.jpg
11 ms
european_science_fiction_cov9.jpg
10 ms
rss.gif
10 ms
twitter_sm.png
10 ms
rainbow_line.gif
10 ms
concatenation.org 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
Image elements do not have [alt] attributes
concatenation.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
concatenation.org SEO score
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
EN
EN
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Concatenation.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Concatenation.org 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.
concatenation.org
Open Graph description is not detected on the main page of Concatenation. 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: