2.6 sec in total
213 ms
2.2 sec
208 ms
Welcome to sperdirect.com homepage info - get ready to check Sper Direct best content for Vietnam right away, or after learning these important things about sperdirect.com
Sper Scientific Instruments for OSHA, EPA & FDA compliance | Air + Water Quality, IR thermometers, IAQ, Heat Stress, Light Meters, Sound Meters, EMF, RF, stopwatches, timers & more.
Visit sperdirect.comWe analyzed Sperdirect.com page load time and found that the first response time was 213 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
sperdirect.com performance score
name
value
score
weighting
Value3.7 s
30/100
10%
Value8.1 s
2/100
25%
Value6.1 s
45/100
10%
Value800 ms
36/100
30%
Value0
100/100
15%
Value9.1 s
33/100
10%
213 ms
418 ms
137 ms
137 ms
145 ms
Our browser made a total of 109 requests to load all elements on the main page. We found that 75% of them (82 requests) were addressed to the original Sperdirect.com, 6% (7 requests) were made to Platform.twitter.com and 6% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (714 ms) belongs to the original domain Sperdirect.com.
Page size can be reduced by 1.2 MB (54%)
2.3 MB
1.1 MB
In fact, the total size of Sperdirect.com main page is 2.3 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 991.2 kB which makes up the majority of the site volume.
Potential reduce by 31.0 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 4.6 kB, which is 12% 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 31.0 kB or 80% of the original size.
Potential reduce by 79.9 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. Obviously, Sper Direct needs image optimization as it can save up to 79.9 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 687.1 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 687.1 kB or 69% of the original size.
Potential reduce by 449.9 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. Sperdirect.com needs all CSS files to be minified and compressed as it can save up to 449.9 kB or 84% of the original size.
Number of requests can be reduced by 36 (36%)
100
64
The browser has sent 100 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sper Direct. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.
sperdirect.com
213 ms
www.sperdirect.com
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container.css
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menu.css
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defaultStyles.css
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main.js
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css
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header_bg.png
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sperdirect.com 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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
[id] attributes on active, focusable elements are not unique
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
sperdirect.com 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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
sperdirect.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
Tap targets are not sized appropriately
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sperdirect.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 Sperdirect.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.
sperdirect.com
Open Graph description is not detected on the main page of Sper Direct. 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: