1.2 sec in total
462 ms
612 ms
144 ms
Welcome to virogen.com homepage info - get ready to check Viro Gen best content right away, or after learning these important things about virogen.com
ViroGen is a leading provider of antigens and antibodies for the research and diagnostics markets. Located in Boston, MA, our scientists are prepared to meet worldwide needs for biological reagents, a...
Visit virogen.comWe analyzed Virogen.com page load time and found that the first response time was 462 ms and then it took 756 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.
virogen.com performance score
name
value
score
weighting
Value3.0 s
50/100
10%
Value5.3 s
22/100
25%
Value7.0 s
32/100
10%
Value650 ms
46/100
30%
Value1.353
0/100
15%
Value11.9 s
16/100
10%
462 ms
233 ms
228 ms
159 ms
159 ms
Our browser made a total of 19 requests to load all elements on the main page. We found that 84% of them (16 requests) were addressed to the original Virogen.com, 16% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (462 ms) belongs to the original domain Virogen.com.
Page size can be reduced by 19.6 kB (48%)
40.8 kB
21.2 kB
In fact, the total size of Virogen.com main page is 40.8 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 5% of websites need less resources to load. HTML takes 19.2 kB which makes up the majority of the site volume.
Potential reduce by 15.9 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 2.4 kB, which is 13% 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 15.9 kB or 83% of the original size.
Potential reduce by 34 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 3.7 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. Virogen.com needs all CSS files to be minified and compressed as it can save up to 3.7 kB or 84% of the original size.
Number of requests can be reduced by 12 (67%)
18
6
The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Viro Gen. 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.
virogen.com
462 ms
commerce.css
233 ms
companylogo.gif
228 ms
spacer.gif
159 ms
search.gif
159 ms
advancesearch.gif
157 ms
menu_01.gif
173 ms
menu_02.gif
174 ms
menu_03.gif
173 ms
menu_04.gif
226 ms
menu_05.gif
228 ms
menu_on.gif
235 ms
joinnow.gif
160 ms
wtvc.gif
161 ms
r_c.gif
161 ms
t.gif
225 ms
ga.js
18 ms
__utm.gif
23 ms
__utm.gif
11 ms
virogen.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
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
virogen.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
Page has valid source maps
virogen.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
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
EN
N/A
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Virogen.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 Virogen.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.
virogen.com
Open Graph description is not detected on the main page of Viro Gen. 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: