1.1 sec in total
97 ms
885 ms
140 ms
Welcome to ntp.niehs.nih.gov homepage info - get ready to check Ntp Niehs Nih best content for China right away, or after learning these important things about ntp.niehs.nih.gov
Visit ntp.niehs.nih.govWe analyzed Ntp.niehs.nih.gov page load time and found that the first response time was 97 ms and then it took 1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.
ntp.niehs.nih.gov performance score
name
value
score
weighting
Value3.2 s
43/100
10%
Value4.7 s
33/100
25%
Value4.6 s
70/100
10%
Value200 ms
89/100
30%
Value0.41
24/100
15%
Value12.2 s
15/100
10%
97 ms
53 ms
143 ms
62 ms
86 ms
Our browser made a total of 31 requests to load all elements on the main page. We found that 81% of them (25 requests) were addressed to the original Ntp.niehs.nih.gov, 6% (2 requests) were made to Webtrends-sdc.niehs.nih.gov and 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (431 ms) relates to the external source Webtrends-sdc.niehs.nih.gov.
Page size can be reduced by 343.0 kB (32%)
1.1 MB
736.8 kB
In fact, the total size of Ntp.niehs.nih.gov main page is 1.1 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. 25% of websites need less resources to load. Images take 624.5 kB which makes up the majority of the site volume.
Potential reduce by 17.4 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 5.4 kB, which is 24% 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 17.4 kB or 77% of the original size.
Potential reduce by 33.6 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. Ntp Niehs Nih images are well optimized though.
Potential reduce by 247.4 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 247.4 kB or 66% of the original size.
Potential reduce by 44.6 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. Ntp.niehs.nih.gov needs all CSS files to be minified and compressed as it can save up to 44.6 kB or 76% of the original size.
Number of requests can be reduced by 13 (45%)
29
16
The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ntp Niehs Nih. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.
ntp.niehs.nih.gov
97 ms
ntpweb-screen.css
53 ms
ntpweb-js.js
143 ms
universal-federated-analyticsmin.1.0.js
62 ms
flexslider-min.js
86 ms
wtid.js
431 ms
mastheadwrapperback.gif
23 ms
masthead_right.gif
22 ms
mastHead.jpg
21 ms
ntpprintlogo.gif
26 ms
inhalation-webinars-2016.jpg
106 ms
bscdecember2014.jpg
108 ms
botanicals_workshop.jpg
91 ms
lead_slider.jpg
68 ms
ntpupdate_v2015.jpg
99 ms
wvchemicalslider.jpg
68 ms
rss-14x14.png
80 ms
exit-w.gif
89 ms
exit.gif
98 ms
footer_usagov.gif
110 ms
footer_hhs.png
110 ms
masthead.jpg
102 ms
ntpweb-print.css
20 ms
analytics.js
52 ms
gateway.min.js
51 ms
ui-bg_inset-hard_100_fcfdfd_1x100.png
32 ms
collect
49 ms
foresee_trigger.js
21 ms
dcs.gif
41 ms
background-oppacity.png
24 ms
bg_direction_nav.png
20 ms
ntp.niehs.nih.gov accessibility score
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
ntp.niehs.nih.gov best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
ntp.niehs.nih.gov SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ntp.niehs.nih.gov 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 Ntp.niehs.nih.gov 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.
ntp.niehs.nih.gov
Open Graph description is not detected on the main page of Ntp Niehs Nih. 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: