1.3 sec in total
101 ms
1 sec
141 ms
Click here to check amazing DNA Barcoding Courses content. Otherwise, check out these important facts you probably never knew about dnabarcodingcourses.com
Open Learning and Educational Support (OpenEd), University of Guelph, offers a wide range of online and face-to-face degree-credit, continuing education, and professional development courses and progr...
Visit dnabarcodingcourses.comWe analyzed Dnabarcodingcourses.com page load time and found that the first response time was 101 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.
dnabarcodingcourses.com performance score
name
value
score
weighting
Value2.4 s
70/100
10%
Value5.7 s
17/100
25%
Value4.2 s
77/100
10%
Value710 ms
42/100
30%
Value0.097
90/100
15%
Value8.4 s
39/100
10%
101 ms
215 ms
26 ms
42 ms
50 ms
Our browser made a total of 50 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Dnabarcodingcourses.com, 72% (36 requests) were made to Courses.opened.uoguelph.ca and 8% (4 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (548 ms) relates to the external source V4in1-si.click4assistance.co.uk.
Page size can be reduced by 172.6 kB (23%)
743.9 kB
571.3 kB
In fact, the total size of Dnabarcodingcourses.com main page is 743.9 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 391.2 kB which makes up the majority of the site volume.
Potential reduce by 51.5 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 15.3 kB, which is 23% 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 51.5 kB or 78% of the original size.
Potential reduce by 28.2 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. DNA Barcoding Courses images are well optimized though.
Potential reduce by 52.4 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 52.4 kB or 28% of the original size.
Potential reduce by 40.6 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. Dnabarcodingcourses.com needs all CSS files to be minified and compressed as it can save up to 40.6 kB or 40% of the original size.
Number of requests can be reduced by 32 (71%)
45
13
The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DNA Barcoding Courses. 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 13 to 1 for CSS and as a result speed up the page load time.
dnabarcodingcourses.com
101 ms
programStream.do
215 ms
bootstrap-4.3.1.min.css
26 ms
bootstrap-datepicker3.css
42 ms
bootstrap-float-labels-destiny.css
50 ms
icomoon.css
51 ms
nicerCheckables.css
56 ms
font-awesome.css
61 ms
core.css
54 ms
base.css
59 ms
customBase.css
64 ms
publicViewCustomization.css
65 ms
jquery-3.5.1.min.js
88 ms
popper.js
91 ms
bootstrap-4.3.1.min.js
79 ms
affix.js
78 ms
modernizr.custom.js
80 ms
coreOnLoad.js
79 ms
default.css
93 ms
highlight.pack.js
96 ms
js
47 ms
SI.js
548 ms
cookieconsent.min.css
92 ms
cookieconsent.min.js
94 ms
reservationConfirmationDelayedLoad.js
99 ms
bootstrap-datepicker.js
110 ms
nicerCheckables.js
105 ms
coreDelayedLoad.js
111 ms
cleave.js
111 ms
bootstrap-float-label.css
70 ms
gtm.js
67 ms
analytics.js
118 ms
fbevents.js
162 ms
959e2bb97121650710e8aa049.js
156 ms
OpenEd__Full_Colour_logo.png
135 ms
logo_destiny_one.png
134 ms
powered_modern_campus.png
134 ms
js
104 ms
fa-solid-900.woff
157 ms
fa-regular-400.woff
47 ms
dna-1811955_1920.jpg
168 ms
collect
133 ms
collect
139 ms
collect
32 ms
js
46 ms
ga-audiences
52 ms
142 ms
userSessionInfo.do
65 ms
userSessionInfo.do
17 ms
userSessionInfo.do
19 ms
dnabarcodingcourses.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
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Some elements have a [tabindex] value greater than 0
dnabarcodingcourses.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
dnabarcodingcourses.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
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dnabarcodingcourses.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 Dnabarcodingcourses.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.
dnabarcodingcourses.com
Open Graph description is not detected on the main page of DNA Barcoding Courses. 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: