Report Summary

  • 75

    Performance

    Renders faster than
    84% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

microscopy.jhmi.edu

Microscope Facility – See the Science!

Page Load Speed

564 ms in total

First Response

41 ms

Resources Loaded

327 ms

Page Rendered

196 ms

microscopy.jhmi.edu screenshot

About Website

Visit microscopy.jhmi.edu now to see the best up-to-date Microscopy Jhmi content for United States and also check out these interesting facts you probably never knew about microscopy.jhmi.edu

Welcome to the Johns Hopkins School of Medicine Microscope Core Facility

Visit microscopy.jhmi.edu

Key Findings

We analyzed Microscopy.jhmi.edu page load time and found that the first response time was 41 ms and then it took 523 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

microscopy.jhmi.edu performance score

75

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value4.6 s

36/100

25%

SI (Speed Index)

Value3.4 s

89/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.031

100/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

Network Requests Diagram

microscopy.jhmi.edu

41 ms

index.cfm

65 ms

index.htm

24 ms

jquery.min.js

24 ms

superfishp.js

44 ms

Our browser made a total of 31 requests to load all elements on the main page. We found that 94% of them (29 requests) were addressed to the original Microscopy.jhmi.edu, 6% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (119 ms) relates to the external source Ssl.google-analytics.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 127.7 kB (58%)

Content Size

219.1 kB

After Optimization

91.4 kB

In fact, the total size of Microscopy.jhmi.edu main page is 219.1 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. 15% of websites need less resources to load. Javascripts take 158.6 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 19.9 kB

  • Original 25.7 kB
  • After minification 22.5 kB
  • After compression 5.8 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 3.3 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 19.9 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 15 B

  • Original 22.1 kB
  • After minification 22.1 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. Microscopy Jhmi images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 98.2 kB

  • Original 158.6 kB
  • After minification 142.0 kB
  • After compression 60.4 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 98.2 kB or 62% of the original size.

CSS Optimization

-75%

Potential reduce by 9.5 kB

  • Original 12.6 kB
  • After minification 8.7 kB
  • After compression 3.1 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. Microscopy.jhmi.edu needs all CSS files to be minified and compressed as it can save up to 9.5 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (68%)

Requests Now

28

After Optimization

9

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Microscopy 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 11 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

microscopy.jhmi.edu accessibility score

53

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

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

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

microscopy.jhmi.edu 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

microscopy.jhmi.edu SEO score

69

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Microscopy.jhmi.edu 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 Microscopy.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 description is not detected on the main page of Microscopy Jhmi. 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: