Tools & Wizards About Us

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

shop.centerlinealfa.com

Centerline International - Alfa Romeo Parts & Accessories

Page Load Speed

1.2 sec in total

First Response

50 ms

Resources Loaded

875 ms

Page Rendered

310 ms

About Website

Welcome to shop.centerlinealfa.com homepage info - get ready to check Shop Centerline Alfa best content for United States right away, or after learning these important things about shop.centerlinealfa.com

Centerline International is the leading supplier of restoration, performance, and maintenance parts for all Alfa Romeo models from the Giulietta to the Tonale.

Visit shop.centerlinealfa.com

Key Findings

We analyzed Shop.centerlinealfa.com page load time and found that the first response time was 50 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

shop.centerlinealfa.com performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

11/100

10%

LCP (Largest Contentful Paint)

Value10.6 s

0/100

25%

SI (Speed Index)

Value4.9 s

66/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.0 s

33/100

10%

Network Requests Diagram

shop.centerlinealfa.com

50 ms

www.centerlinealfa.com

116 ms

centerlinealfa.com

184 ms

base.js

78 ms

tinymce.min.js

162 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Shop.centerlinealfa.com, 85% (44 requests) were made to Centerlinealfa.com and 6% (3 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (187 ms) relates to the external source Centerlinealfa.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 54.2 kB (4%)

Content Size

1.3 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Shop.centerlinealfa.com main page is 1.3 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 974.2 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 24.3 kB

  • Original 31.7 kB
  • After minification 29.9 kB
  • After compression 7.4 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 24.3 kB or 77% of the original size.

Image Optimization

-3%

Potential reduce by 25.4 kB

  • Original 974.2 kB
  • After minification 948.8 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. Shop Centerline Alfa images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 252 B

  • Original 235.9 kB
  • After minification 235.9 kB
  • After compression 235.6 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

-10%

Potential reduce by 4.2 kB

  • Original 40.6 kB
  • After minification 40.6 kB
  • After compression 36.4 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. Shop.centerlinealfa.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 16 (36%)

Requests Now

44

After Optimization

28

  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Shop Centerline Alfa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

shop.centerlinealfa.com accessibility score

77

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

shop.centerlinealfa.com best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

shop.centerlinealfa.com SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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 Shop.centerlinealfa.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 Shop.centerlinealfa.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

Open Graph description is not detected on the main page of Shop Centerline Alfa. 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: