2.9 sec in total
637 ms
2 sec
268 ms
Visit circuitlab.com now to see the best up-to-date Circuit Lab content for United States and also check out these interesting facts you probably never knew about circuitlab.com
Powerful online circuit simulator and schematic editor. Easy to learn.
Visit circuitlab.comWe analyzed Circuitlab.com page load time and found that the first response time was 637 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
circuitlab.com performance score
name
value
score
weighting
Value3.0 s
49/100
10%
Value4.8 s
30/100
25%
Value3.3 s
91/100
10%
Value880 ms
32/100
30%
Value0.03
100/100
15%
Value12.2 s
15/100
10%
637 ms
168 ms
442 ms
197 ms
256 ms
Our browser made a total of 55 requests to load all elements on the main page. We found that 38% of them (21 requests) were addressed to the original Circuitlab.com, 11% (6 requests) were made to S3.amazonaws.com and 5% (3 requests) were made to Pixel.prfct.co. The less responsive or slowest element that took the longest time to load (637 ms) belongs to the original domain Circuitlab.com.
Page size can be reduced by 674.2 kB (58%)
1.2 MB
494.1 kB
In fact, the total size of Circuitlab.com main page is 1.2 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. 45% of websites need less resources to load. Javascripts take 537.0 kB which makes up the majority of the site volume.
Potential reduce by 23.6 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 6.1 kB, which is 19% 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 23.6 kB or 74% of the original size.
Potential reduce by 4.0 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. Circuit Lab images are well optimized though.
Potential reduce by 345.3 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 345.3 kB or 64% of the original size.
Potential reduce by 301.2 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. Circuitlab.com needs all CSS files to be minified and compressed as it can save up to 301.2 kB or 83% of the original size.
Number of requests can be reduced by 26 (52%)
50
24
The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Circuit Lab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.
www.circuitlab.com
637 ms
public-1422563354.css
168 ms
jquery-1.8.2.min.js
442 ms
197 ms
public-1422563372.js
256 ms
198 ms
301 ms
ga.js
99 ms
analytics.min.js
317 ms
quant.js
80 ms
h_s_code_remote.js
123 ms
51fb6934dc91ad7bf0000022.js
178 ms
f52GV1IpwVk
141 ms
20131014-feature-smartwires.png
136 ms
topbar_logo_60_2x.png
172 ms
gravatar_empty_50.png
92 ms
resistorgrid_8_8.png
93 ms
homepage_schem_ss6.png
93 ms
homepage_schem_ss7.png
90 ms
homepage_schem_ss1.png
170 ms
homepage_schem_ss2.png
170 ms
homepage_schem_ss3.png
171 ms
homepage_schem_ss4.png
333 ms
homepage_schem_ss5.png
234 ms
tinylogo_edn_aaa.png
266 ms
tinylogo_engadget_aaa.png
266 ms
tinylogo_hackaday_aaa.png
265 ms
footer_logo_300_opacity25_2x.png
265 ms
20131014-feature-simulationengine.png
110 ms
20131014-feature-exports.png
126 ms
20131014-feature-plottingengine.png
124 ms
20131014-feature-customrectangle.png
108 ms
20131014-feature-behavioral.png
106 ms
pixel;r=1953650052;a=p-Jg9kvG7twHpdb;fpan=1;fpa=P0-970076265-1456803719981;ns=0;ce=1;cm=;je=0;sr=1024x768x32;enc=n;dst=0;et=1456803719980;tzo=-180;ref=;url=https%3A%2F%2Fwww.circuitlab.com%2F;ogl=title.CircuitLab%20-%20online%20schematic%20editor%20%26%20circuit%20simulator%2Ctype.website%2Curl.https%3A%2F%2Fwww%252Ecircuitlab%252Ecom%2F%2Cimage.https%3A%2F%2Fwww%252Ecircuitlab%252Ecom%2Fassets%2Fimages%2Fog_logo%252Epng%2Cimage%3Awidth.600%2Cimage%3Aheight.300%2Csite_name.CircuitLab%2Cdescription.Sketch%252C%20simulate%252C%20and%20share%20your%20circuits%252C%20entirely%20in%20your%20browser%20--%20no%20instal
69 ms
__utm.gif
24 ms
www-embed-player-vflQrT_sR.css
95 ms
www-embed-player.js
134 ms
base.js
266 ms
tagjs
6 ms
144 ms
adsct
245 ms
Pug
224 ms
pixel
273 ms
6BOEML_YqI6cKINK5dmh8ZufcXg7sBa4jeB-I9gQ0xI.js
47 ms
ad_status.js
97 ms
zN7GBFwfMP4uA6AR0HCoLQ.ttf
112 ms
RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf
121 ms
cb
85 ms
ncm
9 ms
pixel
14 ms
s92830260402988
84 ms
cb
4 ms
tap.php
131 ms
cb
4 ms
sd
74 ms
circuitlab.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.
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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
circuitlab.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
circuitlab.com 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
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Circuitlab.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 Circuitlab.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.
circuitlab.com
Open Graph data is detected on the main page of Circuit Lab. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: