3.2 sec in total
167 ms
2.5 sec
562 ms
Welcome to sciencefirst.com homepage info - get ready to check Science First best content for United States right away, or after learning these important things about sciencefirst.com
Leading manufacturer and provider of quality educational science equipment and supplies to students from K-12 to higher education.
Visit sciencefirst.comWe analyzed Sciencefirst.com page load time and found that the first response time was 167 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
sciencefirst.com performance score
name
value
score
weighting
Value4.8 s
12/100
10%
Value6.4 s
10/100
25%
Value4.8 s
67/100
10%
Value90 ms
98/100
30%
Value0
100/100
15%
Value6.4 s
61/100
10%
167 ms
242 ms
177 ms
180 ms
45 ms
Our browser made a total of 89 requests to load all elements on the main page. We found that 7% of them (6 requests) were addressed to the original Sciencefirst.com, 39% (35 requests) were made to Cdn1.sciencefirst.com and 28% (25 requests) were made to Cdn5.sciencefirst.com. The less responsive or slowest element that took the longest time to load (1.9 sec) relates to the external source Cdn5.sciencefirst.com.
Page size can be reduced by 715.4 kB (43%)
1.7 MB
937.0 kB
In fact, the total size of Sciencefirst.com main page is 1.7 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. 65% of websites need less resources to load. Images take 755.2 kB which makes up the majority of the site volume.
Potential reduce by 33.4 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 33.4 kB or 74% of the original size.
Potential reduce by 34.5 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 First images are well optimized though.
Potential reduce by 338.3 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 338.3 kB or 69% of the original size.
Potential reduce by 309.1 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. Sciencefirst.com needs all CSS files to be minified and compressed as it can save up to 309.1 kB or 85% of the original size.
Number of requests can be reduced by 31 (38%)
82
51
The browser has sent 82 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Science First. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 22 to 1 for CSS and as a result speed up the page load time.
sciencefirst.com
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bootstrap.css
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responsive.css
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camera.css
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style.css
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wp-filebase.css
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jquery.bxslider.css
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testimonials-widget.css
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flexslider.css
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owl.carousel.css
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owl.theme.css
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font-awesome.css
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cherry-plugin.css
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styles.css
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main-style.css
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magnific-popup.css
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header.jpg
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Science-First-Logo-300x25.png
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science-first-videos-harness-the-weather.jpg
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sciencefirst.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-hidden="true"] elements contain focusable descendents
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
List items (<li>) are not contained within <ul> or <ol> parent elements.
sciencefirst.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Registers an unload listener
Detected JavaScript libraries
sciencefirst.com SEO score
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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sciencefirst.com 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 Sciencefirst.com 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.
sciencefirst.com
Open Graph description is not detected on the main page of Science First. 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: