2.3 sec in total
280 ms
1.9 sec
102 ms
Click here to check amazing Dave T Coleman content. Otherwise, check out these important facts you probably never knew about davetcoleman.com
robotics researcher, engineer, and adventurer.
Visit davetcoleman.comWe analyzed Davetcoleman.com page load time and found that the first response time was 280 ms and then it took 2 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.
davetcoleman.com performance score
name
value
score
weighting
Value2.6 s
63/100
10%
Value5.1 s
26/100
25%
Value2.6 s
97/100
10%
Value570 ms
52/100
30%
Value0
100/100
15%
Value12.5 s
14/100
10%
280 ms
222 ms
138 ms
161 ms
6 ms
Our browser made a total of 67 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Davetcoleman.com, 27% (18 requests) were made to Dav.ee and 12% (8 requests) were made to Docs.google.com. The less responsive or slowest element that took the longest time to load (713 ms) relates to the external source Docs.google.com.
Page size can be reduced by 116.1 kB (16%)
742.4 kB
626.3 kB
In fact, the total size of Davetcoleman.com main page is 742.4 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. 65% of websites need less resources to load. Images take 592.8 kB which makes up the majority of the site volume.
Potential reduce by 45.2 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 15.8 kB, which is 28% 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 45.2 kB or 80% of the original size.
Potential reduce by 22.1 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. Dave T Coleman images are well optimized though.
Potential reduce by 11.8 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 11.8 kB or 25% of the original size.
Potential reduce by 37.0 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. Davetcoleman.com needs all CSS files to be minified and compressed as it can save up to 37.0 kB or 79% of the original size.
Number of requests can be reduced by 22 (34%)
65
43
The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dave T Coleman. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
davetcoleman.com
280 ms
dav.ee
222 ms
style.css
138 ms
modernizr-1.7.min.js
161 ms
in.js
6 ms
jquery.js
13 ms
widgets.js
96 ms
secureAnonymousFramework
149 ms
viewer
713 ms
iframe_api
166 ms
ga.js
104 ms
header_2014.png
111 ms
about.jpg
147 ms
top-left.png
168 ms
bottom-right.png
168 ms
about_box.png
168 ms
project_box.png
168 ms
project_right_box.png
168 ms
ros_control.jpg
349 ms
ompl_rviz_viewer.jpg
321 ms
trrt.jpg
524 ms
clam_vision.jpg
439 ms
clam_plant.jpg
421 ms
visibility_graph.jpg
421 ms
obstacle_avoidance.jpg
437 ms
simplex_solver.jpg
437 ms
timeline.d11f7a3b3287fb94220e8ee6d03cc772.js
55 ms
__utm.gif
27 ms
davetcoleman
79 ms
www-widgetapi.js
28 ms
syndication
100 ms
584017808939298817
159 ms
badge.css
70 ms
__utm.gif
34 ms
proxy.jpg
50 ms
proxy.jpg
128 ms
proxy.jpg
123 ms
timeline.47ab5d19e8ed22531abcf4f86f3ae53a.light.ltr.css
11 ms
timeline.47ab5d19e8ed22531abcf4f86f3ae53a.light.ltr.css
25 ms
hX7_Z20c_normal.jpeg
234 ms
Mv4fgDci_normal.jpg
196 ms
b456254c8b1614db881348e35842a621_normal.jpeg
196 ms
6940380f110b619ad5d451e417b3cbc4_normal.jpeg
197 ms
syndication_bundle_v1_64fcb3dd2f6da5b5f976d91a319ef73e329c1a5d.css
188 ms
syndication_bundle_v1_64fcb3dd2f6da5b5f976d91a319ef73e329c1a5d.css
205 ms
proxy.jpg
16 ms
proxy.jpg
5 ms
rs=AC2dHML5pjGJ6a1qM9faX_WlXRq73TJ6wQ
26 ms
rs=AC2dHMK-JTlPqSUBQYyYoasMatQhEb1wHQ
51 ms
client.js
148 ms
thumb
227 ms
v-spinner_gray.gif
7 ms
cb=gapi.loaded_0
88 ms
v-sprite19.svg
54 ms
meta
88 ms
postmessageRelay
56 ms
proxy.html
119 ms
presspage
40 ms
img
144 ms
presspage
113 ms
img
129 ms
presspage
100 ms
3193398744-postmessagerelay.js
109 ms
rpc:shindig_random.js
63 ms
cb=gapi.loaded_0
48 ms
cb=gapi.loaded_0
10 ms
jot.html
37 ms
davetcoleman.com 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
Links do not have a discernible name
davetcoleman.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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
davetcoleman.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 doesn't use legible font sizes
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Davetcoleman.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 Davetcoleman.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.
davetcoleman.com
Open Graph description is not detected on the main page of Dave T Coleman. 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: