4.9 sec in total
227 ms
4.5 sec
149 ms
Welcome to russelllab.org homepage info - get ready to check Russell Lab best content for United States right away, or after learning these important things about russelllab.org
Protein Evolution Heidelberg, Prof. Rob Russell
Visit russelllab.orgWe analyzed Russelllab.org page load time and found that the first response time was 227 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
russelllab.org performance score
name
value
score
weighting
Value2.5 s
67/100
10%
Value2.7 s
86/100
25%
Value3.8 s
84/100
10%
Value560 ms
52/100
30%
Value0.1
90/100
15%
Value7.2 s
50/100
10%
227 ms
424 ms
407 ms
715 ms
409 ms
Our browser made a total of 44 requests to load all elements on the main page. We found that 91% of them (40 requests) were addressed to the original Russelllab.org, 5% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (3.3 sec) belongs to the original domain Russelllab.org.
Page size can be reduced by 1.5 MB (22%)
6.8 MB
5.3 MB
In fact, the total size of Russelllab.org main page is 6.8 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. 50% of websites need less resources to load. Images take 6.6 MB which makes up the majority of the site volume.
Potential reduce by 16.7 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 7.4 kB, which is 37% 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 16.7 kB or 83% of the original size.
Potential reduce by 1.4 MB
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, Russell Lab needs image optimization as it can save up to 1.4 MB or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 58.1 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 58.1 kB or 57% of the original size.
Potential reduce by 10.9 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. Russelllab.org needs all CSS files to be minified and compressed as it can save up to 10.9 kB or 82% of the original size.
We found no issues to fix!
42
42
The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Russell Lab. According to our analytics all requests are already optimized.
russelllab.org
227 ms
www.russelllab.org
424 ms
default.css
407 ms
jquery-1.4.2.min.js
715 ms
jquery.slidertron-0.1.js
409 ms
gallery.css
205 ms
ga.js
58 ms
Logo_25wht.gif
50 ms
logo_neu_204x107.jpg
515 ms
img01.jpg
103 ms
cellnetworks.gif
104 ms
bioquant.png
205 ms
img05.jpg
104 ms
img04.jpg
104 ms
img06.jpg
204 ms
Syscilia1.png
921 ms
Syscilia2.png
1023 ms
Syscilia3.png
1024 ms
Syscilia4.png
511 ms
mechismo3_big.PNG
1116 ms
Mechismo2_big.PNG
812 ms
mechismo1_big.PNG
921 ms
siRNA_PPI_big.PNG
2237 ms
RhoA_big.PNG
1743 ms
JAK3_big.PNG
1642 ms
Ago_big.PNG
2256 ms
TCF4_ID3.gif
3280 ms
Medulloblastoma_front.PNG
1420 ms
Gag_correlated_front.PNG
1524 ms
Negatives_front.PNG
1625 ms
mycomod1.png
1830 ms
slideshow5.jpg
1846 ms
wikipedia1.png
1945 ms
slideshow2.jpg
2033 ms
pepsite2.png
2051 ms
slideshow3.png
2049 ms
slideshow4.png
2339 ms
slideshow1.png
2152 ms
img08.jpg
2119 ms
img07.jpg
2221 ms
img09.jpg
2223 ms
img10.jpg
2301 ms
img11.jpg
2320 ms
__utm.gif
12 ms
russelllab.org 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.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
russelllab.org 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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
russelllab.org SEO score
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Russelllab.org 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 Russelllab.org 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.
russelllab.org
Open Graph description is not detected on the main page of Russell Lab. 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: