Tools & Wizards About Us
ahernlab.com screenshot

Report Summary

  • 75

    Performance

    Renders faster than
    83% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

ahernlab.com

Welcome To The Ahern Lab – University of Iowa

Page Load Speed

545 ms in total

First Response

83 ms

Resources Loaded

346 ms

Page Rendered

116 ms

ahernlab.com screenshot

About Website

Visit ahernlab.com now to see the best up-to-date Ahern Lab content and also check out these interesting facts you probably never knew about ahernlab.com

The Christopher Ahern laboratory at the University of Iowa is the source for cutting edge voltage-gated ion channel biology, patch-clamping, unnatural amino acids, Stephan Pless, Lilia Leisle, Jason G...

Visit ahernlab.com

Key Findings

We analyzed Ahernlab.com page load time and found that the first response time was 83 ms and then it took 462 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

ahernlab.com performance score

75

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

96/100

10%

LCP (Largest Contentful Paint)

Value7.8 s

3/100

25%

SI (Speed Index)

Value1.5 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.5 s

100/100

10%

Network Requests Diagram

ahernlab.com

83 ms

ahern_site.css

20 ms

SpryTooltip.js

43 ms

SpryEffects.js

56 ms

SpryTooltip.css

38 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 94% of them (34 requests) were addressed to the original Ahernlab.com, 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (137 ms) belongs to the original domain Ahernlab.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 599.3 kB (45%)

Content Size

1.3 MB

After Optimization

723.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ahernlab.com main page is 1.3 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. 40% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 9.5 kB

  • Original 13.0 kB
  • After minification 12.5 kB
  • After compression 3.5 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 9.5 kB or 73% of the original size.

Image Optimization

-45%

Potential reduce by 572.6 kB

  • Original 1.3 MB
  • After minification 697.9 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. Obviously, Ahern Lab needs image optimization as it can save up to 572.6 kB or 45% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-43%

Potential reduce by 16.4 kB

  • Original 37.7 kB
  • After minification 37.7 kB
  • After compression 21.3 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 16.4 kB or 43% of the original size.

CSS Optimization

-43%

Potential reduce by 883 B

  • Original 2.1 kB
  • After minification 1.9 kB
  • After compression 1.2 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. Ahernlab.com needs all CSS files to be minified and compressed as it can save up to 883 B or 43% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

35

After Optimization

35

  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ahern Lab. According to our analytics all requests are already optimized.

Network Requests Diagram

ahernlab.com

ahernlab.com

83 ms

ahern_site.css

ahern_site.css

20 ms

SpryTooltip.js

SpryTooltip.js

43 ms

SpryEffects.js

SpryEffects.js

56 ms

SpryTooltip.css

SpryTooltip.css

38 ms

urchin.js

urchin.js

8 ms

__utm.gif

__utm.gif

23 ms

background.jpg

background.jpg

64 ms

compass_1.png

compass_1.png

21 ms

frame_1.png

frame_1.png

50 ms

plug_1.png

plug_1.png

19 ms

phone_i_.jpg

phone_i_.jpg

55 ms

papers_i.jpg

papers_i.jpg

77 ms

racoon12.png

racoon12.png

55 ms

computi_1.jpg

computi_1.jpg

40 ms

micro_1.jpg

micro_1.jpg

60 ms

welcome.gif

welcome.gif

67 ms

atom_link.png

atom_link.png

91 ms

homepage_2.png

homepage_2.png

137 ms

home_callout.png

home_callout.png

82 ms

home_people.png

home_people.png

79 ms

home_van.png

home_van.png

85 ms

home_resea.png

home_resea.png

94 ms

home_fund.png

home_fund.png

96 ms

home_pubs.png

home_pubs.png

102 ms

home_cont.png

home_cont.png

104 ms

home_atom.png

home_atom.png

108 ms

plug_2.png

plug_2.png

24 ms

frame_2.png

frame_2.png

21 ms

micro_2.jpg

micro_2.jpg

21 ms

compass_2.jpg

compass_2.jpg

24 ms

computi_2.jpg

computi_2.jpg

20 ms

papers_i_hell.jpg

papers_i_hell.jpg

34 ms

phone_i_hell.jpg

phone_i_hell.jpg

38 ms

racoon12hell.png

racoon12hell.png

39 ms

atom_2.png

atom_2.png

38 ms

Accessibility Review

ahernlab.com accessibility score

84

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

High

Links do not have a discernible name

Best Practices

ahernlab.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

ahernlab.com SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ahernlab.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 Ahernlab.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.

Social Sharing Optimization

ahernlab.com

Open Graph description is not detected on the main page of Ahern 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: