690 ms in total
228 ms
330 ms
132 ms
Welcome to computersciencelab.com homepage info - get ready to check Computer Science Lab best content for United States right away, or after learning these important things about computersciencelab.com
Computer Science Lab offers a fun introduction to computer programming for high school and home school students. The 3 part curriculum employs a programmable RPN calculator, an Intel 8051 microprocess...
Visit computersciencelab.comWe analyzed Computersciencelab.com page load time and found that the first response time was 228 ms and then it took 462 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.
computersciencelab.com performance score
name
value
score
weighting
Value0.7 s
100/100
10%
Value0.8 s
100/100
25%
Value0.7 s
100/100
10%
Value0 ms
100/100
30%
Value0
100/100
15%
Value0.7 s
100/100
10%
228 ms
52 ms
88 ms
90 ms
Our browser made a total of 4 requests to load all elements on the main page. We found that all of those requests were addressed to Computersciencelab.com and no external sources were called. The less responsive or slowest element that took the longest time to load (228 ms) belongs to the original domain Computersciencelab.com.
Page size can be reduced by 7.0 kB (66%)
10.6 kB
3.6 kB
In fact, the total size of Computersciencelab.com main page is 10.6 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. HTML takes 10.6 kB which makes up the majority of the site volume.
Potential reduce by 7.0 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 1.2 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 7.0 kB or 66% of the original size.
We found no issues to fix!
3
3
The browser has sent 3 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Computer Science Lab. According to our analytics all requests are already optimized.
computersciencelab.com
228 ms
BlueBtnLeftHalfCircle.gif
52 ms
LightGrayBtnRightHalfCircle.gif
88 ms
SupportEmailAddr.gif
90 ms
computersciencelab.com accessibility score
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Image elements do not have [alt] attributes
computersciencelab.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
computersciencelab.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
Image elements do not have [alt] attributes
EN
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Computersciencelab.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 Computersciencelab.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.
computersciencelab.com
Open Graph description is not detected on the main page of Computer Science Lab. 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: