1.9 sec in total
23 ms
720 ms
1.2 sec
Click here to check amazing STEM content for Indonesia. Otherwise, check out these important facts you probably never knew about stem.org
STEM.org is the longest continually-operating, privately-held STEM education research organization in America —serving schools, districts, organizations and the world’s top brands in over 25 countries...
Visit stem.orgWe analyzed Stem.org page load time and found that the first response time was 23 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
stem.org performance score
name
value
score
weighting
Value3.4 s
37/100
10%
Value6.5 s
9/100
25%
Value5.1 s
61/100
10%
Value920 ms
30/100
30%
Value0.032
100/100
15%
Value8.5 s
38/100
10%
23 ms
60 ms
20 ms
69 ms
67 ms
Our browser made a total of 95 requests to load all elements on the main page. We found that 68% of them (65 requests) were addressed to the original Stem.org, 12% (11 requests) were made to Fonts.gstatic.com and 4% (4 requests) were made to Cdn.jsdelivr.net. The less responsive or slowest element that took the longest time to load (356 ms) belongs to the original domain Stem.org.
Page size can be reduced by 131.7 kB (5%)
2.6 MB
2.5 MB
In fact, the total size of Stem.org main page is 2.6 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.2 MB which makes up the majority of the site volume.
Potential reduce by 104.5 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 104.5 kB or 76% of the original size.
Potential reduce by 14.6 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. STEM images are well optimized though.
Potential reduce by 8.5 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. This website has mostly compressed JavaScripts.
Potential reduce by 4.1 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. Stem.org has all CSS files already compressed.
Number of requests can be reduced by 58 (72%)
81
23
The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of STEM. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 37 to 1 for JavaScripts and from 23 to 1 for CSS and as a result speed up the page load time.
stem.org
23 ms
stem.org
60 ms
style.min.css
20 ms
cleantalk-public.min.css
69 ms
woocommerce-layout.css
67 ms
woocommerce.css
69 ms
style.min.css
75 ms
latest.css
66 ms
css
75 ms
genericons.css
80 ms
style.css
88 ms
blocks.css
96 ms
jquery.min.js
101 ms
jquery-migrate.min.js
82 ms
apbct-public-bundle.min.js
99 ms
ct-bot-detector-wrapper.js
100 ms
js
245 ms
bootstrap.min.css
79 ms
slick.css
81 ms
css
80 ms
font-awesome.min.css
97 ms
style.css
99 ms
tracker.js
81 ms
2766.js
100 ms
jquery-3.3.1.js
96 ms
jquery-ui.js
177 ms
popper.min.js
82 ms
bootstrap.min.js
94 ms
slick.min.js
91 ms
jquery.fancybox.min.css
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jquery.fancybox.min.js
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jquery.cycle.all.js
97 ms
stemsite.js
98 ms
modern-ticker.css
98 ms
formreset.min.css
99 ms
formsmain.min.css
222 ms
readyclass.min.css
220 ms
browsers.min.css
226 ms
lazysizes.min.js
236 ms
coblocks-animation.js
237 ms
tiny-swiper.js
238 ms
coblocks-tinyswiper-initializer.js
241 ms
jquery.blockUI.min.js
243 ms
add-to-cart.min.js
242 ms
js.cookie.min.js
242 ms
woocommerce.min.js
243 ms
skip-link-focus-fix.js
244 ms
functions.js
245 ms
jquery.modern-ticker.min.js
245 ms
wp-polyfill-inert.min.js
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regenerator-runtime.min.js
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wp-polyfill.min.js
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dom-ready.min.js
247 ms
hooks.min.js
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i18n.min.js
236 ms
a11y.min.js
191 ms
jquery.json.min.js
191 ms
gravityforms.min.js
189 ms
placeholders.jquery.min.js
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akismet-frontend.js
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css2
17 ms
prev.png
91 ms
next.png
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ataglance-bg-min2.png
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served-bg.jpg
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about-bg.png
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industry-std-bg.jpg
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innovations-bg.png
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timeline2.png
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mathbg.jpg
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teambg2.png
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phoneiconsub.png
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stem.org.json
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JTUHjIg1_i6t8kCHKm4532VJOt5-QNFgpCvC73w5aX8.ttf
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handlenssub.png
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footerbg.png
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formbg.png
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preloader-white.gif
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bullet-over-fafafa.png
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pause-fafafa.png
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prev-fafafa.png
305 ms
play-fafafa.png
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next-fafafa.png
355 ms
JTUFjIg1_i6t8kCHKm459Wx7xQYXK0vOoz6jqw16WXh0ow.ttf
150 ms
JTUFjIg1_i6t8kCHKm459Wx7xQYXK0vOoz6jq3p6WXh0ow.ttf
151 ms
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149 ms
KFOmCnqEu92Fr1Mu4mxP.ttf
186 ms
fontawesome-webfont.woff
198 ms
woocommerce-smallscreen.css
23 ms
stem.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.
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
stem.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
Page has valid source maps
stem.org 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
Image elements do not have [alt] attributes
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 Stem.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 Stem.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.
stem.org
Open Graph data is detected on the main page of STEM. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: