Tools & Wizards About Us
genetherapy.isth.org screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

genetherapy.isth.org

Gene Therapy | Gene Therapy for Hemophilia | Gene Therapy Research

Page Load Speed

1.5 sec in total

First Response

120 ms

Resources Loaded

1 sec

Page Rendered

315 ms

genetherapy.isth.org screenshot

About Website

Visit genetherapy.isth.org now to see the best up-to-date Gene Therapy Isth content for United States and also check out these interesting facts you probably never knew about genetherapy.isth.org

ISTH & the global hemophilia gene therapy experts have developed educational resources to address needs providing you a front seat to learn about hemophilia.

Visit genetherapy.isth.org

Key Findings

We analyzed Genetherapy.isth.org page load time and found that the first response time was 120 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

genetherapy.isth.org performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

46/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value6.1 s

44/100

10%

TBT (Total Blocking Time)

Value490 ms

59/100

30%

CLS (Cumulative Layout Shift)

Value0.444

21/100

15%

TTI (Time to Interactive)

Value9.9 s

27/100

10%

Network Requests Diagram

genetherapy.isth.org

120 ms

genetherapy.isth.org

354 ms

font-awesome-5.min.css

28 ms

font-awesome-v4-shims.css

55 ms

animate.min.css

82 ms

Our browser made a total of 71 requests to load all elements on the main page. We found that 90% of them (64 requests) were addressed to the original Genetherapy.isth.org, 4% (3 requests) were made to Secure.trust-provider.com and 3% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (370 ms) belongs to the original domain Genetherapy.isth.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 182.0 kB (11%)

Content Size

1.6 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Genetherapy.isth.org main page is 1.6 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. 65% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 86.9 kB

  • Original 106.6 kB
  • After minification 105.2 kB
  • After compression 19.7 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. 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 86.9 kB or 82% of the original size.

Image Optimization

-3%

Potential reduce by 34.8 kB

  • Original 1.2 MB
  • After minification 1.1 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. Gene Therapy Isth images are well optimized though.

JavaScript Optimization

-19%

Potential reduce by 30.0 kB

  • Original 156.1 kB
  • After minification 156.0 kB
  • After compression 126.2 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 30.0 kB or 19% of the original size.

CSS Optimization

-21%

Potential reduce by 30.3 kB

  • Original 141.8 kB
  • After minification 141.8 kB
  • After compression 111.5 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. Genetherapy.isth.org needs all CSS files to be minified and compressed as it can save up to 30.3 kB or 21% of the original size.

Requests Breakdown

Number of requests can be reduced by 37 (64%)

Requests Now

58

After Optimization

21

  • Images
  • JavaScript
  • CSS

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Gene Therapy Isth. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

genetherapy.isth.org

genetherapy.isth.org

120 ms

genetherapy.isth.org

genetherapy.isth.org

354 ms

font-awesome-5.min.css

font-awesome-5.min.css

28 ms

font-awesome-v4-shims.css

font-awesome-v4-shims.css

55 ms

animate.min.css

animate.min.css

82 ms

sppagebuilder.css

sppagebuilder.css

113 ms

jquery.bxslider.min.css

jquery.bxslider.min.css

85 ms

owl.carousel.css

owl.carousel.css

84 ms

owl.theme.css

owl.theme.css

86 ms

content.css

content.css

83 ms

bootstrap.min.css

bootstrap.min.css

136 ms

system-j3.min.css

system-j3.min.css

108 ms

font-awesome.min.css

font-awesome.min.css

142 ms

fa-v4-shims.css

fa-v4-shims.css

109 ms

template.css

template.css

145 ms

default.css

default.css

140 ms

style.css

style.css

143 ms

module.min.css

module.min.css

144 ms

magnific-popup.css

magnific-popup.css

162 ms

css

css

33 ms

jquery.min.js

jquery.min.js

189 ms

jquery-noconflict.js

jquery-noconflict.js

166 ms

jquery-migrate.min.js

jquery-migrate.min.js

167 ms

jquery.parallax.js

jquery.parallax.js

167 ms

sppagebuilder.js

sppagebuilder.js

168 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

203 ms

lazyestload.js

lazyestload.js

202 ms

lazyestload.js

lazyestload.js

204 ms

jquery.nanoscroller.min.js

jquery.nanoscroller.min.js

204 ms

owl.carousel.min.js

owl.carousel.min.js

205 ms

core.js

core.js

215 ms

popper.min.js

popper.min.js

216 ms

bootstrap.min.js

bootstrap.min.js

217 ms

main.js

main.js

222 ms

script.js

script.js

222 ms

module.min.js

module.min.js

222 ms

jquery.magnific-popup.min.js

jquery.magnific-popup.min.js

241 ms

dwf.js

dwf.js

35 ms

js

js

64 ms

jquery.easing.js

jquery.easing.js

370 ms

sexylightbox.css

sexylightbox.css

370 ms

jquery.sexylightbox.min.js

jquery.sexylightbox.min.js

349 ms

ext-core.js

ext-core.js

320 ms

menu.min.js

menu.min.js

293 ms

gtm.js

gtm.js

46 ms

trustlogo.js

trustlogo.js

80 ms

bg-4500x128.png

bg-4500x128.png

46 ms

05web_banner_1110x128.png

05web_banner_1110x128.png

90 ms

logo.svg

logo.svg

46 ms

isth-intitiative-logo-text-only_262x150-transparent.gif

isth-intitiative-logo-text-only_262x150-transparent.gif

91 ms

explore-rotator.jpg

explore-rotator.jpg

117 ms

9350_gt_home_750x450_alt.jpg

9350_gt_home_750x450_alt.jpg

114 ms

eahad-cc-2022.jpg

eahad-cc-2022.jpg

137 ms

staber-new-7.30-263x_small.png

staber-new-7.30-263x_small.png

90 ms

riverside_sync-263x_small.jpg

riverside_sync-263x_small.jpg

91 ms

pipe-new-7.30-263x_small.png

pipe-new-7.30-263x_small.png

91 ms

cuker-263x_small.png

cuker-263x_small.png

114 ms

cuker-263x_medium.png

cuker-263x_medium.png

136 ms

bella-madan-Thumb_263x0_medium.png

bella-madan-Thumb_263x0_medium.png

201 ms

riverside_johnny_thumbnail0_medium.jpg

riverside_johnny_thumbnail0_medium.jpg

178 ms

isth-intitiative-logo-text-only_262x150-transparent.gif

isth-intitiative-logo-text-only_262x150-transparent.gif

149 ms

9278-pierce-thumbnail_medium.png

9278-pierce-thumbnail_medium.png

138 ms

fa-solid-900.woff

fa-solid-900.woff

129 ms

fa-solid-900.woff

fa-solid-900.woff

119 ms

fa-regular-400.woff

fa-regular-400.woff

130 ms

fa-regular-400.woff

fa-regular-400.woff

153 ms

fa-brands-400.woff

fa-brands-400.woff

154 ms

fa-brands-400.woff

fa-brands-400.woff

179 ms

seal_bg.gif

seal_bg.gif

26 ms

warranty_level.gif

warranty_level.gif

29 ms

positivessl_trust_seal_sm_124x32.png

positivessl_trust_seal_sm_124x32.png

139 ms

Accessibility Review

genetherapy.isth.org accessibility score

65

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

High

[aria-*] attributes do not have valid values

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

genetherapy.isth.org best practices score

58

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

genetherapy.isth.org SEO score

77

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

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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

High

Tap targets are not sized appropriately

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 Genetherapy.isth.org 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 Genetherapy.isth.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.

Social Sharing Optimization

genetherapy.isth.org

Open Graph description is not detected on the main page of Gene Therapy Isth. 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: