Tools & Wizards About Us
collectorz.com screenshot

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

collectorz.com

Collection database software for movies, books, music, comics and games - CLZ.com

Page Load Speed

1.4 sec in total

First Response

7 ms

Resources Loaded

949 ms

Page Rendered

463 ms

collectorz.com screenshot

About Website

Visit collectorz.com now to see the best up-to-date Collectorz content for United States and also check out these interesting facts you probably never knew about collectorz.com

Catalog your collection of CDs and vinyl records, DVDs and Blu-rays, books, comic books or video games. Use the Connect web-based software, install the CLZ mobile app on your iPhone, iPad or Android d...

Visit collectorz.com

Key Findings

We analyzed Collectorz.com page load time and found that the first response time was 7 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

collectorz.com performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value6.8 s

7/100

25%

SI (Speed Index)

Value6.0 s

47/100

10%

TBT (Total Blocking Time)

Value890 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0.041

99/100

15%

TTI (Time to Interactive)

Value11.8 s

17/100

10%

Network Requests Diagram

collectorz.com

7 ms

155 ms

bootstrap-3.4.1.min.css

24 ms

app.css

35 ms

css

40 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 25% of them (12 requests) were addressed to the original Collectorz.com, 52% (25 requests) were made to Static.collectorz.com and 10% (5 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (501 ms) relates to the external source Cdn.cookie-script.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 383.3 kB (21%)

Content Size

1.8 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Collectorz.com main page is 1.8 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. 70% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 40.1 kB

  • Original 49.3 kB
  • After minification 42.8 kB
  • After compression 9.2 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 6.5 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 40.1 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 10.1 kB

  • Original 1.3 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. Collectorz images are well optimized though.

JavaScript Optimization

-57%

Potential reduce by 160.9 kB

  • Original 281.7 kB
  • After minification 279.0 kB
  • After compression 120.8 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 160.9 kB or 57% of the original size.

CSS Optimization

-82%

Potential reduce by 172.2 kB

  • Original 208.9 kB
  • After minification 201.5 kB
  • After compression 36.7 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. Collectorz.com needs all CSS files to be minified and compressed as it can save up to 172.2 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (38%)

Requests Now

40

After Optimization

25

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Collectorz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

collectorz.com

collectorz.com

7 ms

155 ms

bootstrap-3.4.1.min.css

bootstrap-3.4.1.min.css

24 ms

app.css

app.css

35 ms

css

css

40 ms

font-awesome-4.7.0a.min.css

font-awesome-4.7.0a.min.css

40 ms

jquery.fancybox-3.5.7.min.css

jquery.fancybox-3.5.7.min.css

44 ms

tp.widget.bootstrap.min.js

tp.widget.bootstrap.min.js

34 ms

jquery-3.5.1.min.js

jquery-3.5.1.min.js

45 ms

bootstrap-3.4.1.min.js

bootstrap-3.4.1.min.js

58 ms

jquery.fancybox-3.5.7.min.js

jquery.fancybox-3.5.7.min.js

69 ms

jquery.lazyload-1.9.3.min.js

jquery.lazyload-1.9.3.min.js

41 ms

masonry.pkgd-4.0.0.min.js

masonry.pkgd-4.0.0.min.js

40 ms

app.js

app.js

51 ms

covrprice-posts.css

covrprice-posts.css

59 ms

gtm.js

gtm.js

137 ms

FCBD-24-top.webp

FCBD-24-top.webp

218 ms

collectorz-icon.png

collectorz-icon.png

79 ms

collectorz-text.png

collectorz-text.png

79 ms

movie-devices.png

movie-devices.png

177 ms

book-devices.png

book-devices.png

176 ms

music-devices.png

music-devices.png

173 ms

comic-devices.png

comic-devices.png

174 ms

game-devices.png

game-devices.png

179 ms

logo-mobile.png

logo-mobile.png

173 ms

logo-mobile.png

logo-mobile.png

182 ms

logo-connect.png

logo-connect.png

181 ms

logo-mobile.png

logo-mobile.png

184 ms

collectorz-icon-dark.png

collectorz-icon-dark.png

184 ms

logo-mobile.png

logo-mobile.png

183 ms

fcbd2024-allcomics.webp

fcbd2024-allcomics.webp

186 ms

fcbd2024-series-barcode.webp

fcbd2024-series-barcode.webp

181 ms

clzmusic9-combinemultidisc-150x150.webp

clzmusic9-combinemultidisc-150x150.webp

174 ms

comicconnect-editmulti-150x150.webp

comicconnect-editmulti-150x150.webp

176 ms

NCBD-2024-18-newissuesbigtitles-150x150.webp

NCBD-2024-18-newissuesbigtitles-150x150.webp

176 ms

add-books-confirm-sheets-150x150.jpg

add-books-confirm-sheets-150x150.jpg

180 ms

NCBD-2024-17-newissuesbigtitles-298x300.jpg

NCBD-2024-17-newissuesbigtitles-298x300.jpg

184 ms

isbn-not-found-150x150.jpg

isbn-not-found-150x150.jpg

184 ms

clz-books-collection-tabs-150x150.jpg

clz-books-collection-tabs-150x150.jpg

184 ms

SlGVmQWMvZQIdix7AFxXkHNSaw.woff

SlGVmQWMvZQIdix7AFxXkHNSaw.woff

141 ms

SlGWmQWMvZQIdix7AFxXmMh3eDs1YQ.woff

SlGWmQWMvZQIdix7AFxXmMh3eDs1YQ.woff

141 ms

TK3_WkUHHAIjg75cFRf3bXL8LICs1_FvsUZiYw.woff

TK3_WkUHHAIjg75cFRf3bXL8LICs1_FvsUZiYw.woff

177 ms

TK3_WkUHHAIjg75cFRf3bXL8LICs169vsUZiYw.woff

TK3_WkUHHAIjg75cFRf3bXL8LICs169vsUZiYw.woff

294 ms

TK3_WkUHHAIjg75cFRf3bXL8LICs1xZosUZiYw.woff

TK3_WkUHHAIjg75cFRf3bXL8LICs1xZosUZiYw.woff

294 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

108 ms

0e4b65c558140ba064a0e70f5462eea2.js

0e4b65c558140ba064a0e70f5462eea2.js

501 ms

js

js

100 ms

bat.js

bat.js

98 ms

Accessibility Review

collectorz.com accessibility score

94

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

collectorz.com best practices score

83

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

collectorz.com SEO score

83

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

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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 Collectorz.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 Collectorz.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

collectorz.com

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