3.8 sec in total
221 ms
3.4 sec
232 ms
Welcome to serta.com homepage info - get ready to check Serta best content for United States right away, or after learning these important things about serta.com
Experience the always comfortable, best mattress online backed by 90+ years of Serta innovation. Buy mattresses & more w/ 120 night trial & free shipping.
Visit serta.comWe analyzed Serta.com page load time and found that the first response time was 221 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
serta.com performance score
name
value
score
weighting
Value3.3 s
40/100
10%
Value11.6 s
0/100
25%
Value8.6 s
17/100
10%
Value2,610 ms
4/100
30%
Value0.161
73/100
15%
Value20.7 s
2/100
10%
221 ms
360 ms
298 ms
143 ms
219 ms
Our browser made a total of 176 requests to load all elements on the main page. We found that 70% of them (123 requests) were addressed to the original Serta.com, 5% (8 requests) were made to W.sharethis.com and 3% (6 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Serta.com.
Page size can be reduced by 1.7 MB (45%)
3.8 MB
2.1 MB
In fact, the total size of Serta.com main page is 3.8 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. 70% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.
Potential reduce by 135.7 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 28.8 kB, which is 17% 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 135.7 kB or 82% of the original size.
Potential reduce by 46.5 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. Serta images are well optimized though.
Potential reduce by 850.5 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 850.5 kB or 75% of the original size.
Potential reduce by 665.4 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. Serta.com needs all CSS files to be minified and compressed as it can save up to 665.4 kB or 88% of the original size.
Number of requests can be reduced by 95 (57%)
168
73
The browser has sent 168 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Serta. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 44 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
serta.com
221 ms
index.html
360 ms
style.extend.css
298 ms
gui-fix.css
143 ms
jquery.min.js
219 ms
jquery.cookie.js
149 ms
flight.min.js
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flight.xpress.js
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handlebars-v3.0.3.js
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jquery.yiiactiveform.js
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flexslider-2.1-custom.jquery.js
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bvapi.js
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modernizr-2.6.2-custom.min.js
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store-loccator.js
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menu-aim-custom.jquery.js
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bootstrap-button-2.3.1.jquery.js
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bootstrap-collapse-2.3.1.jquery.js
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bootstrap-dropdown-2.3.1.jquery.js
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bootstrap-modal-2.3.1.jquery.js
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bootstrap-tab-2.3.0.jquery.js
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bootstrap-transition-2.3.1.jquery.js
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bootstrap-tooltip-2.3.1.jquery.js
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bootstrap-popover-2.3.1.jquery.js
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bootstrap-typeahead-2.3.2.jquery.js
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throttle-1.1.jquery.min.js
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equalize-custom.jquery.min.js
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harvey.js
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script.js
434 ms
geo-location.js
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sub-collection.js
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buttons.js
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font.css
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style.css
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bv.js
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analytics.js
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ga.js
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craTracking.min.js
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tan.jpg
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shopping-tools-app-promo-icon.png
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download-app-store-btn.png
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responsive-app-promo-icon.png
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loader.gif
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perfect-sleeper.jpg
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icomfort.jpg
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iseries.jpg
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serta.jpg
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perfect-sleeper.jpg
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icomfort.jpg
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iseries.jpg
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hotel-mattresses.jpg
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bellagio.jpg
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motion-custom.png
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selector.jpg
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new-adjustable-foundation-3.jpg
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nav-ico-isr-promo-box.png
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counting-sheep.jpg
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pres-day-homepage-promos-hp-PS-banner.png
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pres-day-ps-logo.png
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womens-award-hp-banner-1-os.jpg
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sm.png
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pres-day-hp-bottom-promo-banner.png
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mattress-selector-482x108.jpg
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pres-day-PS-tall-banner.png
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mobile-promo-pg-b-header-banner.png
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mobile-PS-header-banner.png
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view-all-collections.jpg
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collect
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collect
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magpie.js
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gill-sans-light.woff
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gill-sans.woff
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content
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homepage-mattress-selector-tab.png
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serta-americas1-mm-footer.png
874 ms
serta-womens-choice-award-seal.png
869 ms
serta-designed-built-usa-seal-footer.png
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survey_tab2.png
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sign-up-for-email-sheep.png
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sign-up-email-heading.png
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pres-day-hp-lightbox-text.png
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pres-day-hp-lightbox-bed-image.png
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gtm.js
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getAllAppDefault.esi
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index
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header.png
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lt.jpg
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lrg.jpg
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arrow-sm.png
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shopping-cart-menu-navigation.png
871 ms
beacon
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os-161-0.js
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quant.js
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fbds.js
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beacon
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beacon
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activityi;src=4340046;type=Retar-;cat=Serta-;ord=6544465349359;~oref=http%3A%2F%2Fwww.serta.com%2Findex.html
53 ms
activityi;src=4340046;type=Retar-;cat=gaidpass;u1=1192923344.1456759399;ord=5497577516828;~oref=http%3A%2F%2Fwww.serta.com%2Findex.html
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activityi;src=4340046;type=Retar-;cat=Landi-;ord=1;num=9054146320722;~oref=http%3A%2F%2Fwww.serta.com%2Findex.html
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7848cddf9c81.js
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getSegment.php
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checkOAuth.esi
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pixel;r=1416451099;a=p-96Z_SkFtLp0RU;labels=_fp.event.Serta%20Homepage;fpan=1;fpa=P0-1946137348-1456759399367;ns=0;ce=1;cm=;je=0;sr=1024x768x32;enc=n;dst=0;et=1456759399367;tzo=-180;ref=;url=http%3A%2F%2Fwww.serta.com%2Findex.html;ogl=title.Mattresses%20by%20Serta%252E%20We%20Make%20the%20World%E2%80%99s%20Best%20Mattress%252E%2Ctype.website%2Curl.http%3A%2F%2Fwww%252Eserta%252Ecom%2Findex%252Ehtml%2Cimage.http%3A%2F%2Fwww%252Eserta%252Ecom%2Fsites%2F1%2Ftagrem%2Fserta%2Fuploads%2Fcontent%2Fhome%2Fslide%2Ficomfort%252Ejp%2Csite_name.Serta%252Ecom
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search.png
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lt-dk.jpg
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account.png
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t.dhj
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os-ue-lib-1.1.1.js
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t.dhj
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cm
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collect
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collect
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pixel
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s-3271.xgi
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fb.png
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twitter.png
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hbpix
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pinterest.png
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email.png
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arrow-secondary.png
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email.png
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reviews.png
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index.php
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fb.png
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twitter.png
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gplus.png
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pinterest.png
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blg.png
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fb-dk.png
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marker-4.png
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slide-active.png
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slide.png
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arrow-prev.png
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arrow-next.png
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touch.min.js
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arrow-btn.png
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close-blue.png
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intro.jpg
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iSeries-Vantage-Plush-500x326.png
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iComfort-Savant-EverFeel-Plush-250x160.png
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penny-field-super-pillow-top-elite-250x163.png
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cart.png
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buttons.4d4008011051a133a045fe92d3143ad4.css
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facebook_32.png
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pinterest_32.png
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touch.min.js
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serta.com accessibility score
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
serta.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
Missing source maps for large first-party JavaScript
serta.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
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
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Serta.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Serta.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.
serta.com
Open Graph description is not detected on the main page of Serta. 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: