17.9 sec in total
1.1 sec
16.7 sec
163 ms
Welcome to calctool.org homepage info - get ready to check Calc Tool best content for United States right away, or after learning these important things about calctool.org
CalcTool provides 400 problem solvers, mainly connected with physics (but not limited to it!). The calculators are so easy and fast that you’ll never want to visit other web tools!
Visit calctool.orgWe analyzed Calctool.org page load time and found that the first response time was 1.1 sec and then it took 16.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
calctool.org performance score
name
value
score
weighting
Value1.7 s
91/100
10%
Value4.0 s
50/100
25%
Value2.7 s
97/100
10%
Value70 ms
99/100
30%
Value0.001
100/100
15%
Value3.4 s
93/100
10%
1056 ms
463 ms
621 ms
14 ms
11 ms
Our browser made a total of 27 requests to load all elements on the main page. We found that 85% of them (23 requests) were addressed to the original Calctool.org, 11% (3 requests) were made to Static.addtoany.com and 4% (1 request) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (14.6 sec) belongs to the original domain Calctool.org.
Page size can be reduced by 98.6 kB (42%)
234.0 kB
135.5 kB
In fact, the total size of Calctool.org main page is 234.0 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. Only 10% of websites need less resources to load. Images take 98.6 kB which makes up the majority of the site volume.
Potential reduce by 36.6 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. 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 36.6 kB or 81% of the original size.
Potential reduce by 12.4 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, Calc Tool needs image optimization as it can save up to 12.4 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 45.7 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 45.7 kB or 54% of the original size.
Potential reduce by 3.9 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. Calctool.org needs all CSS files to be minified and compressed as it can save up to 3.9 kB or 81% of the original size.
Number of requests can be reduced by 7 (28%)
25
18
The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Calc Tool. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
calctool.org
1056 ms
CALC
463 ms
calctool.css
621 ms
page.js
14 ms
share_save_256_24.gif
11 ms
bg_image.jpg
61 ms
tl.png
39 ms
t.png
4618 ms
tr.png
10162 ms
l.png
57 ms
logo.png
14042 ms
r.png
14590 ms
calctool.png
107 ms
resize.png
90 ms
search_calcs.png
133 ms
bl.png
135 ms
b.png
152 ms
br.png
162 ms
main_categories.png
212 ms
whats_a_calc.png
188 ms
calc_is.png
244 ms
how_it_works.png
242 ms
instructions.png
303 ms
more_stuff.png
275 ms
4.jpg
329 ms
sm13.html
23 ms
ga.js
56 ms
calctool.org accessibility score
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
<input type="image"> elements do not have [alt] text
Form elements do not have associated labels
calctool.org 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
calctool.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
EN
EN
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Calctool.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 Calctool.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.
calctool.org
Open Graph description is not detected on the main page of Calc Tool. 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: