Tools & Wizards About Us
zip-corvette.com screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

zip-corvette.com

Corvette Parts and Accessories - Zip Corvette

Page Load Speed

3.6 sec in total

First Response

43 ms

Resources Loaded

3.1 sec

Page Rendered

447 ms

zip-corvette.com screenshot

About Website

Welcome to zip-corvette.com homepage info - get ready to check Zip Corvette best content for United States right away, or after learning these important things about zip-corvette.com

Corvette Parts and Accessories for 1953-2023 Corvettes. Same day shipping on over 25,000 stocked items. Restoration, Performance and everything in between.

Visit zip-corvette.com

Key Findings

We analyzed Zip-corvette.com page load time and found that the first response time was 43 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.

Performance Metrics

zip-corvette.com performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value10.3 s

0/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value4,350 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.06

98/100

15%

TTI (Time to Interactive)

Value25.8 s

0/100

10%

Network Requests Diagram

www.zip-corvette.com

43 ms

require.min.js

15 ms

requirejs-min-resolver.min.js

25 ms

mixins.min.js

26 ms

requirejs-config.min.js

26 ms

Our browser made a total of 373 requests to load all elements on the main page. We found that 93% of them (348 requests) were addressed to the original Zip-corvette.com, 2% (9 requests) were made to R2.dotdigital-pages.com and 1% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source R2.dotdigital-pages.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (17%)

Content Size

6.5 MB

After Optimization

5.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zip-corvette.com main page is 6.5 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 4.7 MB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 1.0 MB

  • Original 1.1 MB
  • After minification 882.7 kB
  • After compression 99.9 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 231.8 kB, which is 21% 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 1.0 MB or 91% of the original size.

Image Optimization

-0%

Potential reduce by 2.8 kB

  • Original 4.7 MB
  • After minification 4.6 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. Zip Corvette images are well optimized though.

JavaScript Optimization

-15%

Potential reduce by 88.9 kB

  • Original 597.1 kB
  • After minification 596.8 kB
  • After compression 508.3 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 88.9 kB or 15% of the original size.

CSS Optimization

-4%

Potential reduce by 7.0 kB

  • Original 181.0 kB
  • After minification 181.0 kB
  • After compression 174.0 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. Zip-corvette.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 217 (60%)

Requests Now

363

After Optimization

146

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 363 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zip Corvette. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 177 to 1 for JavaScripts and from 42 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.zip-corvette.com

www.zip-corvette.com

43 ms

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LLOYD.jpg

59 ms

1me_at_greenbrier.jpg

1me_at_greenbrier.jpg

57 ms

1img_0758.jpg

1img_0758.jpg

57 ms

acs-3.jpg

acs-3.jpg

57 ms

img_1278.jpg

img_1278.jpg

57 ms

Fuel-Pumps.jpg

Fuel-Pumps.jpg

56 ms

RD-2.jpg

RD-2.jpg

58 ms

Novi_1.jpg

Novi_1.jpg

56 ms

gift-cards-01-927x503.jpg

gift-cards-01-927x503.jpg

59 ms

tc-seal-white.png

tc-seal-white.png

55 ms

armo.png

armo.png

55 ms

sbn.png

sbn.png

56 ms

entry.min.js

entry.min.js

25 ms

moment.min.js

moment.min.js

58 ms

dom-observer.min.js

dom-observer.min.js

30 ms

bindings.min.js

bindings.min.js

31 ms

calendar.min.css

calendar.min.css

4 ms

styles-m.min.css

styles-m.min.css

13 ms

owl.carousel.min.css

owl.carousel.min.css

5 ms

owl.theme.default.min.css

owl.theme.default.min.css

4 ms

clarity.js

clarity.js

38 ms

jquery.fancybox.min.css

jquery.fancybox.min.css

3 ms

font-awesome.min.css

font-awesome.min.css

3 ms

styles.min.css

styles.min.css

6 ms

boostrap.tiny.min.css

boostrap.tiny.min.css

4 ms

styles.min.css

styles.min.css

5 ms

grid.min.css

grid.min.css

8 ms

opentip.min.css

opentip.min.css

4 ms

colpick.min.css

colpick.min.css

4 ms

calendar.min.css

calendar.min.css

7 ms

magnific-popup.min.css

magnific-popup.min.css

3 ms

font-awesome.min.css

font-awesome.min.css

4 ms

bootstrap.min.css

bootstrap.min.css

6 ms

owl.carousel.min.css

owl.carousel.min.css

4 ms

font-awesome.min.css

font-awesome.min.css

4 ms

styles-l.min.css

styles-l.min.css

5 ms

print.min.css

print.min.css

6 ms

calendar.min.css

calendar.min.css

2 ms

styles-m.min.css

styles-m.min.css

4 ms

owl.carousel.min.css

owl.carousel.min.css

6 ms

owl.theme.default.min.css

owl.theme.default.min.css

3 ms

jquery.fancybox.min.css

jquery.fancybox.min.css

3 ms

font-awesome.min.css

font-awesome.min.css

3 ms

styles.min.css

styles.min.css

3 ms

boostrap.tiny.min.css

boostrap.tiny.min.css

5 ms

styles.min.css

styles.min.css

3 ms

grid.min.css

grid.min.css

7 ms

opentip.min.css

opentip.min.css

2 ms

colpick.min.css

colpick.min.css

2 ms

calendar.min.css

calendar.min.css

2 ms

magnific-popup.min.css

magnific-popup.min.css

2 ms

font-awesome.min.css

font-awesome.min.css

2 ms

bootstrap.min.css

bootstrap.min.css

2 ms

owl.carousel.min.css

owl.carousel.min.css

7 ms

font-awesome.min.css

font-awesome.min.css

2 ms

styles-l.min.css

styles-l.min.css

3 ms

print.min.css

print.min.css

20 ms

zip-corvette-popup

zip-corvette-popup

99 ms

c.gif

c.gif

8 ms

213633_dotc6pop.jpg

213633_dotc6pop.jpg

245 ms

strings.js

strings.js

30 ms

Accessibility Review

zip-corvette.com accessibility score

72

Accessibility Issues

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

zip-corvette.com best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

zip-corvette.com SEO score

82

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

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 Zip-corvette.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 Zip-corvette.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

zip-corvette.com

Open Graph description is not detected on the main page of Zip Corvette. 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: