2.6 sec in total
895 ms
1.4 sec
327 ms
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Visit ndt.orgWe analyzed Ndt.org page load time and found that the first response time was 895 ms and then it took 1.7 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.
ndt.org performance score
name
value
score
weighting
Value2.7 s
58/100
10%
Value2.8 s
83/100
25%
Value4.2 s
77/100
10%
Value1,310 ms
18/100
30%
Value0
100/100
15%
Value5.4 s
72/100
10%
895 ms
27 ms
24 ms
19 ms
23 ms
Our browser made a total of 45 requests to load all elements on the main page. We found that 82% of them (37 requests) were addressed to the original Ndt.org, 9% (4 requests) were made to Pagead2.googlesyndication.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (895 ms) belongs to the original domain Ndt.org.
Page size can be reduced by 397.0 kB (51%)
784.5 kB
387.5 kB
In fact, the total size of Ndt.org main page is 784.5 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. 55% of websites need less resources to load. Javascripts take 405.5 kB which makes up the majority of the site volume.
Potential reduce by 28.7 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. This page needs HTML code to be minified as it can gain 4.7 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 28.7 kB or 79% of the original size.
Potential reduce by 16.7 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. NDT images are well optimized though.
Potential reduce by 212.1 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 212.1 kB or 52% of the original size.
Potential reduce by 139.5 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. Ndt.org needs all CSS files to be minified and compressed as it can save up to 139.5 kB or 83% of the original size.
Number of requests can be reduced by 4 (11%)
35
31
The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NDT. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.
main.asp
895 ms
bootstrap.min.css
27 ms
ndt.css
24 ms
font-awesome.min.css
19 ms
ndt_logo_2.gif
23 ms
adsbygoogle.js
50 ms
jquery1-11-3.asp
52 ms
bootstrap3-3-5.asp
49 ms
workpad_728x90.jpg
100 ms
file_r.asp
114 ms
file_r.asp
116 ms
file_r.asp
114 ms
file_r.asp
130 ms
file_r.asp
263 ms
file_r.asp
277 ms
file_r.asp
246 ms
file_r.asp
247 ms
file_r.asp
250 ms
mfe234x60.gif
113 ms
iuoe.gif
230 ms
applus234x60.gif
231 ms
arcadia_234.jpg
232 ms
siui234x60.gif
232 ms
team234x60.gif
235 ms
vizaar234x60.jpg
234 ms
mx_234x60.jpg
235 ms
testex234_60.gif
236 ms
silverwing_234x60b.gif
236 ms
aindt.gif
236 ms
mistras.gif
237 ms
medit2.gif
237 ms
olympus.gif
238 ms
xri234x60.gif
240 ms
vxray_final.jpg
241 ms
iris2.jpg
240 ms
birring_NDE.jpg
242 ms
nub234x60.gif
243 ms
analytics.js
63 ms
ca-pub-3817985447670173.js
10 ms
zrt_lookup.html
52 ms
show_ads_impl.js
52 ms
fontawesome-webfont.woff
179 ms
collect
123 ms
ads
179 ms
osd.js
19 ms
ndt.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.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<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
Image elements do not have [alt] attributes
Links do not have a discernible name
ndt.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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
ndt.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
N/A
N/A
ASCII
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ndt.org can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Ndt.org main page’s claimed encoding is ascii. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
ndt.org
Open Graph description is not detected on the main page of NDT. 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: