2.1 sec in total
518 ms
1.3 sec
323 ms
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Visit ndt.orgWe analyzed Ndt.org page load time and found that the first response time was 518 ms and then it took 1.6 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
Value2.2 s
79/100
10%
Value3.9 s
53/100
25%
Value2.5 s
98/100
10%
Value260 ms
83/100
30%
Value0
100/100
15%
Value5.4 s
71/100
10%
518 ms
19 ms
30 ms
33 ms
30 ms
Our browser made a total of 42 requests to load all elements on the main page. We found that 93% of them (39 requests) were addressed to the original Ndt.org, 5% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (722 ms) belongs to the original domain Ndt.org.
Page size can be reduced by 89.7 kB (7%)
1.4 MB
1.3 MB
In fact, the total size of Ndt.org main page is 1.4 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. 45% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.
Potential reduce by 44.4 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 9.7 kB, which is 18% 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 44.4 kB or 83% of the original size.
Potential reduce by 34.0 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 50 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 11.2 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 11.2 kB or 29% of the original size.
We found no issues to fix!
40
40
The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of NDT. According to our analytics all requests are already optimized.
main.asp
518 ms
bootstrap.min.css
19 ms
ndt.css
30 ms
font-awesome.min.css
33 ms
ndt_logo_2.gif
30 ms
olympus_728x90zh.jpg
51 ms
jquery1-11-3.asp
48 ms
bootstrap3-3-5.asp
62 ms
file_r.asp
142 ms
file_r.asp
225 ms
file_r.asp
300 ms
file_r.asp
368 ms
file_r.asp
521 ms
file_r.asp
442 ms
file_r.asp
593 ms
file_r.asp
656 ms
file_r.asp
722 ms
mistras_728x90.jpg
372 ms
innopoly_234x60.gif
376 ms
iris_234x60.jpg
376 ms
usindt_234x60.gif
378 ms
ats_234x60.gif
379 ms
nvi_234x60c.gif
380 ms
aut_234x60.gif
381 ms
magnaflux_234x60d.jpg
383 ms
eddify_234x60d.gif
385 ms
mistras_234x60.jpg
387 ms
medit9.gif
387 ms
olympus_234x60c.jpg
389 ms
mfe234x60a.gif
391 ms
acuren_234x60a.jpg
393 ms
applus234x60a.jpg
395 ms
arcadia_234.jpg
395 ms
team234x60.gif
397 ms
pine_234x60a.gif
401 ms
mx_234x60.jpg
402 ms
cygnus_234x60i.gif
404 ms
aindt_234x60a.gif
393 ms
analytics.js
27 ms
fontawesome-webfont.woff
334 ms
collect
13 ms
js
47 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: