Tools & Wizards About Us
andovercorp.com screenshot

Report Summary

  • 36

    Performance

    Renders faster than
    55% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

andovercorp.com

Custom High-Quality Optical Coatings & Optical Filters | Andover Corporation

Page Load Speed

1.8 sec in total

First Response

31 ms

Resources Loaded

1.2 sec

Page Rendered

560 ms

andovercorp.com screenshot

About Website

Click here to check amazing Andover Corp content for United States. Otherwise, check out these important facts you probably never knew about andovercorp.com

Leading designer & manufacturer of custom & standard high-quality optical filters & optical coatings for a variety of applications

Visit andovercorp.com

Key Findings

We analyzed Andovercorp.com page load time and found that the first response time was 31 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

andovercorp.com performance score

36

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

47/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

9/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value540 ms

54/100

30%

CLS (Cumulative Layout Shift)

Value0.618

10/100

15%

TTI (Time to Interactive)

Value10.4 s

24/100

10%

Network Requests Diagram

andovercorp.com

31 ms

andovercorp.com

19 ms

www.andovercorp.com

420 ms

bootstrap.min.css

129 ms

styles.10.css

12 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 60% of them (34 requests) were addressed to the original Andovercorp.com, 5% (3 requests) were made to Ajax.googleapis.com and 4% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (420 ms) belongs to the original domain Andovercorp.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 431.1 kB (10%)

Content Size

4.2 MB

After Optimization

3.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Andovercorp.com main page is 4.2 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. 80% 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 4.0 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 29.3 kB

  • Original 37.2 kB
  • After minification 32.7 kB
  • After compression 7.9 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 4.5 kB, which is 12% 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 29.3 kB or 79% of the original size.

Image Optimization

-10%

Potential reduce by 392.9 kB

  • Original 4.0 MB
  • After minification 3.6 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. Andover Corp images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 7.3 kB

  • Original 152.4 kB
  • After minification 152.4 kB
  • After compression 145.2 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

-24%

Potential reduce by 1.6 kB

  • Original 6.7 kB
  • After minification 6.7 kB
  • After compression 5.1 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. Andovercorp.com needs all CSS files to be minified and compressed as it can save up to 1.6 kB or 24% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (39%)

Requests Now

51

After Optimization

31

  • Images
  • JavaScript
  • CSS

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Andover Corp. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

andovercorp.com

andovercorp.com

31 ms

andovercorp.com

andovercorp.com

19 ms

www.andovercorp.com

www.andovercorp.com

420 ms

bootstrap.min.css

bootstrap.min.css

129 ms

styles.10.css

styles.10.css

12 ms

css

css

59 ms

icon

icon

77 ms

client.js

client.js

228 ms

jquery.min.js

jquery.min.js

46 ms

jquery-ui.css

jquery-ui.css

50 ms

jquery-ui.min.js

jquery-ui.min.js

57 ms

popper.min.js

popper.min.js

55 ms

bootstrap.min.js

bootstrap.min.js

148 ms

bs-custom-file-input.min.js

bs-custom-file-input.min.js

70 ms

jquery.payform.js

jquery.payform.js

49 ms

Chart.min.js

Chart.min.js

54 ms

scripts.3.js

scripts.3.js

32 ms

8731016.js

8731016.js

102 ms

gtm.js

gtm.js

239 ms

AndoverCorp_Logo.png

AndoverCorp_Logo.png

183 ms

wt.php

wt.php

202 ms

1714680852_Streamlined_excellence_1920x253.jpg

1714680852_Streamlined_excellence_1920x253.jpg

185 ms

1714680934_exceptional_coating_expertise_1920x253.jpg

1714680934_exceptional_coating_expertise_1920x253.jpg

182 ms

1714678826_superior_delivered_quality_1920x253.jpg

1714678826_superior_delivered_quality_1920x253.jpg

148 ms

1714678750_Custom_craftsmanship_1920x253.jpg

1714678750_Custom_craftsmanship_1920x253.jpg

191 ms

1691437523_Coating%20Final.jpg

1691437523_Coating%20Final.jpg

148 ms

1691698782_Bandpass%20filters%20final.jpg

1691698782_Bandpass%20filters%20final.jpg

180 ms

1691698884_Edge%20filters%20final.jpg

1691698884_Edge%20filters%20final.jpg

182 ms

1691438040_Infrared%20Final.jpg

1691438040_Infrared%20Final.jpg

183 ms

1691512718_Custom%20Engineered%202.jpg

1691512718_Custom%20Engineered%202.jpg

192 ms

1691438238_Assembly.jpg

1691438238_Assembly.jpg

192 ms

1691438287_Fabrication%20Final.jpg

1691438287_Fabrication%20Final.jpg

191 ms

1691438103_Blog%20Final.jpg

1691438103_Blog%20Final.jpg

190 ms

AEROSPACE.Icon.png

AEROSPACE.Icon.png

191 ms

ASTRONOMY.Icon.png

ASTRONOMY.Icon.png

207 ms

AUTONOMOUS.Icon.png

AUTONOMOUS.Icon.png

199 ms

BIOMEDICAL.Icon.png

BIOMEDICAL.Icon.png

199 ms

ENVIRONMENTAL.Icon.png

ENVIRONMENTAL.Icon.png

203 ms

SECURITY.DEFENSE.Icon.png

SECURITY.DEFENSE.Icon.png

204 ms

Trusted%20Partners%202023.png

Trusted%20Partners%202023.png

240 ms

Copy%20of%20Manual3.png

Copy%20of%20Manual3.png

244 ms

USA_1.jpg

USA_1.jpg

205 ms

ISO9001.png

ISO9001.png

236 ms

AS9100.png

AS9100.png

237 ms

ITAR.png

ITAR.png

238 ms

facebook.png

facebook.png

237 ms

linkedin.png

linkedin.png

240 ms

twitter.png

twitter.png

240 ms

collectedforms.js

collectedforms.js

203 ms

web-interactives-embed.js

web-interactives-embed.js

201 ms

8731016.js

8731016.js

195 ms

leadflows.js

leadflows.js

198 ms

8731016.js

8731016.js

194 ms

P5sfzZCDf9_T_3cV7NCUECyoxNk37cxcABrE.ttf

P5sfzZCDf9_T_3cV7NCUECyoxNk37cxcABrE.ttf

88 ms

flUhRq6tzZclQEJ-Vdg-IuiaDsNZ.ttf

flUhRq6tzZclQEJ-Vdg-IuiaDsNZ.ttf

105 ms

webtraxs.php

webtraxs.php

246 ms

zi-tag.js

zi-tag.js

39 ms

Accessibility Review

andovercorp.com accessibility score

78

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.

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

High

ARIA IDs are not unique

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

andovercorp.com best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

andovercorp.com SEO score

92

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

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

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 Andovercorp.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 Andovercorp.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

andovercorp.com

Open Graph description is not detected on the main page of Andover Corp. 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: