27.7 sec in total
806 ms
18.8 sec
8.1 sec
Visit sciencea-z.com now to see the best up-to-date Science A Z content for United States and also check out these interesting facts you probably never knew about sciencea-z.com
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Visit sciencea-z.comWe analyzed Sciencea-z.com page load time and found that the first response time was 806 ms and then it took 26.9 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.
sciencea-z.com performance score
name
value
score
weighting
Value6.0 s
4/100
10%
Value8.0 s
2/100
25%
Value6.6 s
37/100
10%
Value680 ms
43/100
30%
Value0.192
64/100
15%
Value13.0 s
13/100
10%
806 ms
934 ms
397 ms
464 ms
825 ms
Our browser made a total of 73 requests to load all elements on the main page. We found that 93% of them (68 requests) were addressed to the original Sciencea-z.com, 4% (3 requests) were made to Ssl.google-analytics.com and 1% (1 request) were made to Bat.bing.com. The less responsive or slowest element that took the longest time to load (6.8 sec) belongs to the original domain Sciencea-z.com.
Page size can be reduced by 2.8 MB (64%)
4.3 MB
1.5 MB
In fact, the total size of Sciencea-z.com main page is 4.3 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 1.8 MB which makes up the majority of the site volume.
Potential reduce by 83.6 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 15.7 kB, which is 15% 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 83.6 kB or 80% of the original size.
Potential reduce by 102.9 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. Science A Z images are well optimized though.
Potential reduce by 1.3 MB
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 1.3 MB or 74% of the original size.
Potential reduce by 1.2 MB
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. Sciencea-z.com needs all CSS files to be minified and compressed as it can save up to 1.2 MB or 93% of the original size.
Number of requests can be reduced by 34 (55%)
62
28
The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science A Z. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
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sciencea-z.com 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 IDs are not unique
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
sciencea-z.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
sciencea-z.com 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
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
EN
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sciencea-z.com 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 Sciencea-z.com 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.
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sciencea-z.com
Open Graph description is not detected on the main page of Science A Z. 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: