3.1 sec in total
159 ms
2.5 sec
510 ms
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Choose a high-accuracy flow meter or mass controller for nearly every gas, liquid or steam application. Free, lifetime engineering support. Fast delivery online.
Visit sierrainstruments.comWe analyzed Sierrainstruments.com page load time and found that the first response time was 159 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
sierrainstruments.com performance score
name
value
score
weighting
Value7.1 s
1/100
10%
Value8.5 s
1/100
25%
Value9.4 s
12/100
10%
Value370 ms
71/100
30%
Value1.165
1/100
15%
Value9.9 s
27/100
10%
159 ms
265 ms
482 ms
67 ms
96 ms
Our browser made a total of 98 requests to load all elements on the main page. We found that 69% of them (68 requests) were addressed to the original Sierrainstruments.com, 26% (25 requests) were made to Use.typekit.net and 3% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (764 ms) belongs to the original domain Sierrainstruments.com.
Page size can be reduced by 204.7 kB (12%)
1.8 MB
1.5 MB
In fact, the total size of Sierrainstruments.com main page is 1.8 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. 65% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.
Potential reduce by 128.7 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. 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 128.7 kB or 82% of the original size.
Potential reduce by 63.7 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. Sierra Instruments images are well optimized though.
Potential reduce by 7.4 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 5.0 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. Sierrainstruments.com has all CSS files already compressed.
Number of requests can be reduced by 39 (57%)
69
30
The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sierra Instruments. 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 14 to 1 for CSS and as a result speed up the page load time.
sierrainstruments.com
159 ms
sierrainstruments.com
265 ms
www.sierrainstruments.com
482 ms
gtm.js
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bootstrap.min.css
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style.min.css
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responsive.css
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charlotte.css
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footer.css
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lightbox.css
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slick.css
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font-awesome.min.css
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fullwidth.css
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home.css
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filter-sidebar.css
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jquery-1.7.2.min.js
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superfish.min.js
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jquery.tools.min.js
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hoverIntent.min.js
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flow.min.js
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jquery.sticky.min.js
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prod-filter.min.js
372 ms
cookiecheck.js
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lightbox.js
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slick.min.js
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footer.js
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sierra-logo.png
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sierrainstruments.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
[aria-hidden="true"] elements contain focusable descendents
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
[aria-*] attributes do not have valid values
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
Links do not have a discernible name
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
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
sierrainstruments.com 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
Browser errors were logged to the console
sierrainstruments.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
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sierrainstruments.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 Sierrainstruments.com main page’s claimed encoding is iso-8859-1. 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.
sierrainstruments.com
Open Graph description is not detected on the main page of Sierra Instruments. 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: