5.3 sec in total
94 ms
838 ms
4.4 sec
Click here to check amazing Certain Teed content for United States. Otherwise, check out these important facts you probably never knew about certainteed.com
CertainTeed is North America’s leading brand of exterior and interior products, including roofing, siding, trim, insulation, gypsum, and ceilings.
Visit certainteed.comWe analyzed Certainteed.com page load time and found that the first response time was 94 ms and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.
certainteed.com performance score
name
value
score
weighting
Value3.2 s
43/100
10%
Value7.8 s
3/100
25%
Value11.7 s
4/100
10%
Value2,840 ms
3/100
30%
Value0.088
93/100
15%
Value20.3 s
2/100
10%
94 ms
55 ms
18 ms
35 ms
45 ms
Our browser made a total of 74 requests to load all elements on the main page. We found that 34% of them (25 requests) were addressed to the original Certainteed.com, 53% (39 requests) were made to Certainteed.widen.net and 4% (3 requests) were made to Cdn.cookielaw.org. The less responsive or slowest element that took the longest time to load (421 ms) relates to the external source Certainteed.widen.net.
Page size can be reduced by 151.0 kB (1%)
16.0 MB
15.8 MB
In fact, the total size of Certainteed.com main page is 16.0 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. 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 15.4 MB which makes up the majority of the site volume.
Potential reduce by 143.3 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 18.6 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 143.3 kB or 86% of the original size.
Potential reduce by 6.6 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. Certain Teed images are well optimized though.
Potential reduce by 678 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 446 B
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. Certainteed.com has all CSS files already compressed.
Number of requests can be reduced by 22 (31%)
70
48
The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Certain Teed. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
www.certainteed.com
94 ms
otSDKStub.js
55 ms
css_s7waJi1UhcrsnCeAPygzkOu_cI6RkK0iYAJiioaMZQ8.css
18 ms
css_QlpIj5hP5eFofrw0cqtDnIyxwLk9sR7yO9p0HK4Rspk.css
35 ms
css2
45 ms
css_wm0zgDUq1PHlsq_mUAzsX0WVqEiGPENxoRxc23HreVg.css
28 ms
js_pFxETTM7edy7AABv4NA6nl3cJMKhEpGaZCh_5ynIxp0.js
25 ms
YTAutoplay.js
23 ms
js_QBgTJwQk_AJoT2F3Ej6PA_J0-r3LME9tZ1mBd8_ybsg.js
31 ms
modal.js
42 ms
js_lNvO2sUZLOYJH9paOqMjmG8hrKzRT7I5b59_Z_wPIDI.js
42 ms
main.js
43 ms
heading-ids.js
33 ms
js_CRvpS1j3qIipz44pw3nG1bAZgDRnrZi-BHXxnwYQZlE.js
120 ms
settings.js
36 ms
js_RuVUwzgILqaMojMOSWTXP87H4b3RIwLZhHm22O0AlgY.js
38 ms
gtm.js
42 ms
gtag.js
44 ms
js_GLeUeDJLwu18_vYYJPXxK1yOe1vkseAnVhwfXRHRExE.js
123 ms
_Incapsula_Resource
117 ms
b43ffbf6-e6a1-4577-a186-9db0120bec4d.json
74 ms
widget.js
75 ms
membrain_SI_CertainTeed_5383_Modified%20(3).jpg
218 ms
landmark-thgr-A01-blue-house-dml.tif
118 ms
ceilings-tavola-divergent-gallery.jpg
117 ms
USAluge-siding-stone-multiproduct%20%20(24).jpg
118 ms
DSCF1453%20(1)_Edit.jpg
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ceilings-symphony-f-gallery.jpg
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insulpure-application-wood-studs%20(5).tif
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Manchester-sqpicket-exflcap-whit-house-dml.tif
132 ms
cedar-impressions-d9-stag-rsplit-hear-ranchhouse-dml.tif
124 ms
20230404_CertainTeed_APPLICATION_Residential_Insulation_Membrain_Insulation_09514.tif
129 ms
storm-fire-alarm-safety-awareness.jpg
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Homepage-hotspot-1440x810.jpg
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landmark-mdgegr-dml.tif
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30144-CI-D7-SEP-3G-chgr.tif
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finishing-corner-products-west-EN-CA.jpg
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glasroc-tile-backer-board-stack
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insulpure-product-family.jpg
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landmarkpro-mdcobl-B13-dml.tif
279 ms
vinylcarp-2-5-windowdoorcasing-cowh-CID7-rough-sabr-install.tif
239 ms
20230402_CertainTeed_WORKSTYLE_Commercial_Drywall_01572.tif
236 ms
ceilings-wood-panelized-linear-gallery.jpg
181 ms
ceilings-symphony-m-70-rx-80-rx-gallery.tif
233 ms
black-diamond-base-sheet-ctr%20(90).jpg
200 ms
Solstice%20Shingle.jpg
231 ms
GlasRoc-sheathing-rendering-US-2.png
299 ms
insulpure-application-wood-studs%20(9).tif
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softtouch-ductwrap-install.jpg
277 ms
OPA_CT_Mystic_Black.jpg
297 ms
contractor-applying-roof-shingles.jpg
330 ms
monogram-d4-lima-ci-perf-cowh-remodel-oldVC-dml.tif
360 ms
storm-hurricane-window-prep.jpg
353 ms
roof-storm-damage-trees-on-house.jpg
308 ms
integrityroofsystem-roofrunner-R-Grace-fullsystem-illustration-2023.tif
310 ms
nailtrak-shingle-dappled%20light-photo-ctr.tif
421 ms
CT-RoofDetails-1024px.png
339 ms
USAluge-siding-stone-multiproduct%20%20(24).jpg
385 ms
icons.svg
84 ms
logo.svg
80 ms
logo-m.svg
79 ms
pattern-desktop.svg
83 ms
certainteed-us-video-thumbnail.jpg
99 ms
location
162 ms
widget_app_base_1714479274721.js
242 ms
_Incapsula_Resource
24 ms
css_OxxXFH7tsIKG3bfbhZ0s0d4oini6CyN3u5uHHo_2AJ4.css
15 ms
ceilings-tavola-divergent-gallery.jpg
252 ms
utah_jazz_training_center_basketball_ceiling_acoustical_claro_ceilencio_decoustics%20(1).jpg
306 ms
ceilings-symphony-f-gallery.jpg
272 ms
otBannerSdk.js
39 ms
KFOmCnqEu92Fr1Me5Q.ttf
50 ms
KFOlCnqEu92Fr1MmEU9vAw.ttf
76 ms
KFOlCnqEu92Fr1MmWUlvAw.ttf
94 ms
certainteed.com accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-*] attributes do not match their roles
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
certainteed.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
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
certainteed.com 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 Certainteed.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 Certainteed.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.
certainteed.com
Open Graph description is not detected on the main page of Certain Teed. 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: