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sealingdevices.com screenshot

Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

sealingdevices.com

Sealing Devices | Premier O-Ring, Hydraulic Seal, & Gasket Manufacturer & Distributor In The USA

Page Load Speed

2.3 sec in total

First Response

235 ms

Resources Loaded

1.7 sec

Page Rendered

399 ms

sealingdevices.com screenshot

About Website

Click here to check amazing Sealing Devices content for United States. Otherwise, check out these important facts you probably never knew about sealingdevices.com

Sealing Devices is your authorized manufacturer and distributor Parker o-rings, seals, gaskets, custom molded rubber parts, die-cutting, and more. An industry leader for over 60 years. Work with our t...

Visit sealingdevices.com

Key Findings

We analyzed Sealingdevices.com page load time and found that the first response time was 235 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

sealingdevices.com performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

76/100

10%

LCP (Largest Contentful Paint)

Value9.1 s

1/100

25%

SI (Speed Index)

Value13.4 s

2/100

10%

TBT (Total Blocking Time)

Value4,640 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.9

3/100

15%

TTI (Time to Interactive)

Value22.7 s

1/100

10%

Network Requests Diagram

sealingdevices.com

235 ms

sealingdevices.com

91 ms

divi-wpdt.css

58 ms

slick.css

56 ms

bdpw-public.css

56 ms

Our browser made a total of 133 requests to load all elements on the main page. We found that 39% of them (52 requests) were addressed to the original Sealingdevices.com, 38% (50 requests) were made to Fonts.gstatic.com and 5% (7 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (468 ms) belongs to the original domain Sealingdevices.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 424.3 kB (22%)

Content Size

1.9 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sealingdevices.com main page is 1.9 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. Only a small number of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 348.0 kB

  • Original 394.3 kB
  • After minification 389.5 kB
  • After compression 46.4 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 348.0 kB or 88% of the original size.

Image Optimization

-5%

Potential reduce by 65.6 kB

  • Original 1.2 MB
  • After minification 1.2 MB

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. Sealing Devices images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 10.0 kB

  • Original 217.5 kB
  • After minification 217.5 kB
  • After compression 207.5 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.

CSS Optimization

-1%

Potential reduce by 810 B

  • Original 68.4 kB
  • After minification 68.4 kB
  • After compression 67.6 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. Sealingdevices.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 52 (68%)

Requests Now

76

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sealing Devices. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 38 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sealingdevices.com

sealingdevices.com

235 ms

sealingdevices.com

sealingdevices.com

91 ms

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divi-wpdt.css

58 ms

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slick.css

56 ms

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56 ms

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front.min.css

58 ms

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magnific-popup.css

59 ms

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go_portfolio_styles.css

56 ms

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73 ms

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68 ms

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67 ms

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66 ms

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124 ms

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86 ms

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123 ms

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83 ms

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84 ms

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122 ms

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58 ms

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48 ms

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122 ms

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160 ms

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198 ms

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188 ms

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188 ms

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197 ms

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42 ms

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81 ms

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59 ms

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146 ms

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Accessibility Review

sealingdevices.com accessibility score

88

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

sealingdevices.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

sealingdevices.com SEO score

90

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sealingdevices.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 Sealingdevices.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.

Social Sharing Optimization

sealingdevices.com

Open Graph data is detected on the main page of Sealing Devices. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: