3 sec in total
227 ms
2.3 sec
452 ms
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Visit ctl.sri.comWe analyzed Ctl.sri.com page load time and found that the first response time was 227 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
ctl.sri.com performance score
name
value
score
weighting
Value4.0 s
23/100
10%
Value6.7 s
8/100
25%
Value6.1 s
45/100
10%
Value2,600 ms
4/100
30%
Value0.094
91/100
15%
Value12.7 s
13/100
10%
227 ms
332 ms
408 ms
108 ms
231 ms
Our browser made a total of 57 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Ctl.sri.com, 75% (43 requests) were made to Sri.com and 5% (3 requests) were made to T2.trackalyzer.com. The less responsive or slowest element that took the longest time to load (705 ms) relates to the external source Sri.com.
Page size can be reduced by 481.4 kB (47%)
1.0 MB
545.6 kB
In fact, the total size of Ctl.sri.com main page is 1.0 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. 40% of websites need less resources to load. Images take 411.1 kB which makes up the majority of the site volume.
Potential reduce by 43.8 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 6.0 kB, which is 11% 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 43.8 kB or 78% of the original size.
Potential reduce by 25.2 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. Ctl SRI images are well optimized though.
Potential reduce by 231.6 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 231.6 kB or 71% of the original size.
Potential reduce by 180.7 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. Ctl.sri.com needs all CSS files to be minified and compressed as it can save up to 180.7 kB or 77% of the original size.
Number of requests can be reduced by 17 (33%)
51
34
The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ctl SRI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
ctl.sri.com
227 ms
ctl
332 ms
ctl
408 ms
css_kShW4RPmRstZ3SpIC-ZvVGNFVAi0WEMuCnI0ZkYIaFw.css
108 ms
css_vZ_wrMQ9Og-YPPxa1q4us3N7DsZMJa-14jShHgRoRNo.css
231 ms
css_RZkHofAO3LAPMF6pEtb7v-x2YFzKgx0gRcRCvPnKd-I.css
288 ms
css_UhVLtxJWR3FrjklmLvCKcw83-pitqeQi5h58R-NsGQE.css
292 ms
css_Fo_PnZcXR_yTbhVXL22DOAb04va_A9XP_hFt73YQB0E.css
293 ms
css_KM0R0UF5ZZdP2YSGu5WXNxXhlG82Km9Zwf_KwNflmDM.css
482 ms
jquery.min.js
32 ms
js_IkgOrrVZK1UTp2HktvFi5vo1g7b25Muyr5GoySikuic.js
343 ms
js_obFUyTbqtcoGQtszVI46l1_oD927PzlDtlr_ilpYBqE.js
330 ms
js_FMqD2XaUlDuQJLHGrbSiNfxLJAPboSrAKanH2gAuFqY.js
384 ms
BrightcoveExperiences.js
35 ms
js_k4V9KovfDEcK3CpPRygCBabDwZbrWk3DE_QV8pv4OvY.js
394 ms
js_7qeIP5x1pp65EYN9l3ZhemvVP_ivW4oh0RbOXRf7TX4.js
512 ms
js_n_lOAkwdlahv6dyoATQ8M1nWjLDBGf_uNE0ymYSxz3c.js
515 ms
trackalyze.js
246 ms
conversion.js
47 ms
analytics.js
172 ms
fbds.js
112 ms
footer-bg.jpg
162 ms
teacher-studients-000017127276.jpg
438 ms
christopher_harris_mp_310x226_0.jpg
166 ms
andy_krumm_mp_310x226.jpg
168 ms
nikki-shechtman.jpg
164 ms
jessica_mislevy-wdc-310x226.jpg
185 ms
ximena_dominguez_310x226.jpg
237 ms
pegcat-open-702x437.jpg
256 ms
girl-at-computer-102757454-490x356.jpg
420 ms
engineers_istock_000020111644.jpg
468 ms
circl_310x226.jpeg
390 ms
girls-science-lab-istock_000015041726.jpg
423 ms
ctl_project_readytolearn_490x356.jpg
453 ms
glasslab-research-project-img.jpg
620 ms
logo.png
508 ms
gtm.js
153 ms
icons-contact-sprite.png
493 ms
bg_dots_horiz.gif
513 ms
icon-search.png
525 ms
trackalyze.asp
97 ms
facebook_hr.png
502 ms
twitter_hr.png
532 ms
youtube_hr.png
538 ms
linkedin_hr.png
566 ms
google_hr.png
573 ms
rss_hr.png
603 ms
helveticaneue-light-webfont.woff
705 ms
82 ms
icons-plus-sprite.gif
571 ms
mobile-search.png
588 ms
email-icon.svg
603 ms
59 ms
collect
56 ms
68 ms
dot.gif
90 ms
collect
54 ms
ctl.sri.com accessibility score
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
ctl.sri.com 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
Page has valid source maps
ctl.sri.com SEO score
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 Ctl.sri.com 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 Ctl.sri.com 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.
ctl.sri.com
Open Graph description is not detected on the main page of Ctl SRI. 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: