Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 99

    Accessibility

    Visual factors better than
    that of 96% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

igm.jhmi.edu

Department of Genetic Medicine

Page Load Speed

1.6 sec in total

First Response

42 ms

Resources Loaded

1.2 sec

Page Rendered

340 ms

igm.jhmi.edu screenshot

About Website

Click here to check amazing Igm Jhmi content for United States. Otherwise, check out these important facts you probably never knew about igm.jhmi.edu

The Department of Genetic Medicine seeks to further the understanding of human heredity and genetic medicine and use that knowledge to treat and prevent disease.

Visit igm.jhmi.edu

Key Findings

We analyzed Igm.jhmi.edu page load time and found that the first response time was 42 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

igm.jhmi.edu performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

73/100

10%

LCP (Largest Contentful Paint)

Value12.8 s

0/100

25%

SI (Speed Index)

Value5.8 s

50/100

10%

TBT (Total Blocking Time)

Value390 ms

69/100

30%

CLS (Cumulative Layout Shift)

Value0.046

99/100

15%

TTI (Time to Interactive)

Value10.6 s

23/100

10%

Network Requests Diagram

igm.jhmi.edu

42 ms

104 ms

genetic-medicine

139 ms

base.css

15 ms

jquery-1.8.1.min.js

119 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original Igm.jhmi.edu, 57% (13 requests) were made to Hopkinsmedicine.org and 13% (3 requests) were made to Jhm.containers.piwik.pro. The less responsive or slowest element that took the longest time to load (834 ms) relates to the external source Hopkinsmedicine.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 100.2 kB (10%)

Content Size

1.0 MB

After Optimization

909.5 kB

In fact, the total size of Igm.jhmi.edu main page is 1.0 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. Javascripts take 409.7 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 91.3 kB

  • Original 103.7 kB
  • After minification 73.8 kB
  • After compression 12.3 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 29.9 kB, which is 29% 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 91.3 kB or 88% of the original size.

Image Optimization

-0%

Potential reduce by 18 B

  • Original 363.2 kB
  • After minification 363.2 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. Igm Jhmi images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 4.9 kB

  • Original 409.7 kB
  • After minification 409.7 kB
  • After compression 404.8 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. This website has mostly compressed JavaScripts.

CSS Optimization

-3%

Potential reduce by 3.9 kB

  • Original 133.1 kB
  • After minification 133.1 kB
  • After compression 129.1 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. Igm.jhmi.edu has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 7 (39%)

Requests Now

18

After Optimization

11

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Igm Jhmi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

igm.jhmi.edu accessibility score

99

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

igm.jhmi.edu best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

igm.jhmi.edu SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

Open Graph data is detected on the main page of Igm Jhmi. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: