Tools & Wizards About Us
optical-cement.com screenshot

Report Summary

  • 90

    Performance

    Renders faster than
    91% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

optical-cement.com

Summers Optical: Optical Cements, Adhesives, and Supplies for Military and Commercial Applications

Page Load Speed

628 ms in total

First Response

74 ms

Resources Loaded

224 ms

Page Rendered

330 ms

optical-cement.com screenshot

About Website

Click here to check amazing Optical Cement content. Otherwise, check out these important facts you probably never knew about optical-cement.com

Product and technical information for structural adhesives, ultraviolet curing and two component optical cements,decementing agents, lens coating hardness testers, and cementing supplies.From Summers ...

Visit optical-cement.com

Key Findings

We analyzed Optical-cement.com page load time and found that the first response time was 74 ms and then it took 554 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

optical-cement.com performance score

90

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.3 s

98/100

10%

LCP (Largest Contentful Paint)

Value1.8 s

99/100

25%

SI (Speed Index)

Value1.4 s

100/100

10%

TBT (Total Blocking Time)

Value390 ms

69/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.3 s

99/100

10%

Network Requests Diagram

optical-cement.com

74 ms

optical-cement.com

65 ms

grid.gif

34 ms

email-decode.min.js

15 ms

sumhead.jpeg

53 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that all of those requests were addressed to Optical-cement.com and no external sources were called. The less responsive or slowest element that took the longest time to load (74 ms) belongs to the original domain Optical-cement.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 9.8 kB (20%)

Content Size

48.7 kB

After Optimization

39.0 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Optical-cement.com main page is 48.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. Images take 37.3 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 7.5 kB

  • Original 10.8 kB
  • After minification 9.4 kB
  • After compression 3.2 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 1.4 kB, which is 13% 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 7.5 kB or 70% of the original size.

Image Optimization

-6%

Potential reduce by 2.2 kB

  • Original 37.3 kB
  • After minification 35.1 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. Optical Cement images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 17 B

  • Original 655 B
  • After minification 655 B
  • After compression 638 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.

Requests Breakdown

We found no issues to fix!

Requests Now

6

After Optimization

6

  • Images
  • JavaScript

The browser has sent 6 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Optical Cement. According to our analytics all requests are already optimized.

Network Requests Diagram

optical-cement.com

optical-cement.com

74 ms

optical-cement.com

optical-cement.com

65 ms

grid.gif

grid.gif

34 ms

email-decode.min.js

email-decode.min.js

15 ms

sumhead.jpeg

sumhead.jpeg

53 ms

bottle.gif

bottle.gif

43 ms

introducing2.gif

introducing2.gif

51 ms

main.js

main.js

6 ms

Accessibility Review

optical-cement.com accessibility score

65

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

optical-cement.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

optical-cement.com SEO score

67

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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

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

Social Sharing Optimization

optical-cement.com

Open Graph description is not detected on the main page of Optical Cement. 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: