2.2 sec in total
162 ms
1.5 sec
572 ms
Visit drf.org now to see the best up-to-date Drf content and also check out these interesting facts you probably never knew about drf.org
Hearing Health Foundation's (HHF) mission is to prevent and cure hearing loss and tinnitus through groundbreaking research and to promote hearing health. HHF is the largest nonprofit funder of hearing...
Visit drf.orgWe analyzed Drf.org page load time and found that the first response time was 162 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
drf.org performance score
name
value
score
weighting
Value7.2 s
1/100
10%
Value13.3 s
0/100
25%
Value11.3 s
5/100
10%
Value2,500 ms
4/100
30%
Value0.045
99/100
15%
Value25.2 s
0/100
10%
162 ms
189 ms
81 ms
6 ms
116 ms
Our browser made a total of 67 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Drf.org, 67% (45 requests) were made to Hearinghealthfoundation.org and 12% (8 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (935 ms) relates to the external source Hearinghealthfoundation.org.
Page size can be reduced by 236.1 kB (9%)
2.7 MB
2.5 MB
In fact, the total size of Drf.org main page is 2.7 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. 55% of websites need less resources to load. Images take 2.5 MB which makes up the majority of the site volume.
Potential reduce by 40.3 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 6.4 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 40.3 kB or 80% of the original size.
Potential reduce by 107.5 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. Drf images are well optimized though.
Potential reduce by 45.8 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 45.8 kB or 36% of the original size.
Potential reduce by 42.5 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. Drf.org needs all CSS files to be minified and compressed as it can save up to 42.5 kB or 87% of the original size.
Number of requests can be reduced by 19 (31%)
62
43
The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Drf. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.
drf.org
162 ms
hearinghealthfoundation.org
189 ms
master_home_new.css
81 ms
jquery.min.js
6 ms
slides.jquery.js
116 ms
badge_mini.js
33 ms
ga.js
69 ms
cse.js
68 ms
hearinghealthfoundation.org
53 ms
hearing-health-foundation
450 ms
background-texture-198-198.png
76 ms
header_strip.jpg
87 ms
home_icon.png
59 ms
facebook_round_icon.png
226 ms
twitter_round_icon.png
303 ms
YT-icon.png
173 ms
Round_linkedin_icon.png
185 ms
donate.png
183 ms
hhf-logo.png
223 ms
hhf-logo-text.png
223 ms
email_background.png
258 ms
go.png
257 ms
nav_top_fade.png
269 ms
about.jpg
278 ms
prevention.jpg
278 ms
navdivider.jpg
332 ms
learn.jpg
333 ms
research.jpg
335 ms
cure.jpg
342 ms
involved.jpg
332 ms
nav_bottom_fade.png
365 ms
Winter-2016-Package_v2.jpg
488 ms
Winter-2016-RightThing_v1.jpg
485 ms
Winter-2016-Steyger_v1.jpg
460 ms
Winter-2016-KeyHearing_v2.jpg
475 ms
Winter-2016-RoundUp_v2.jpg
476 ms
Winter-2016-LWHL_v2.jpg
448 ms
small_banner.jpg
507 ms
stefan_heller_new.jpg
522 ms
Normal_mouse_cochlea_2.jpg
935 ms
hearing-health-magazine.jpg
861 ms
print_subscribe.jpg
567 ms
otonomy.jpg
567 ms
sm-Eliza.jpg
573 ms
cochlear-implant.jpg
581 ms
footer_back_strip250.jpg
641 ms
__utm.gif
15 ms
jsapi
26 ms
collect
116 ms
Charity_Navigator_2015_4Star125x125.gif
593 ms
default+en.css
9 ms
default.css
43 ms
default+en.I.js
13 ms
gximage2.png
565 ms
BIASeal2.gif
563 ms
default.css
91 ms
async-ads.js
48 ms
google_custom_search_watermark.gif
45 ms
small-logo.png
48 ms
search_box_icon.png
47 ms
clear.gif
49 ms
Winter-2016-Package_v2.jpg
530 ms
loading.gif
541 ms
pagination.png
543 ms
badgestar.png
3 ms
nr-885.min.js
19 ms
19823124f1
51 ms
drf.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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
Image elements do not have [alt] attributes
Links do not have a discernible name
drf.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
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
drf.org SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
Document uses legible font sizes
Tap targets are not sized appropriately
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Drf.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 Drf.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.
drf.org
Open Graph description is not detected on the main page of Drf. 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: