Tools & Wizards About Us

Report Summary

  • 48

    Performance

    Renders faster than
    66% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

ca.postcodebase.com

Home | California United States ZIP Code 5 Plus 4 ✉️

Page Load Speed

1.2 sec in total

First Response

29 ms

Resources Loaded

678 ms

Page Rendered

459 ms

About Website

Visit ca.postcodebase.com now to see the best up-to-date Ca Post Code Base content for United States and also check out these interesting facts you probably never knew about ca.postcodebase.com

This is the California ZIP code website, which contains 2,616 ZIP codes, 1,334 cities, 58 counties, and more than 3,410,524 ZIP+4 codes. Each 9-digit ZIP code corresponds to one or several California ...

Visit ca.postcodebase.com

Key Findings

We analyzed Ca.postcodebase.com page load time and found that the first response time was 29 ms and then it took 1.1 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

ca.postcodebase.com performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

87/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value17.4 s

0/100

10%

TBT (Total Blocking Time)

Value10,540 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.009

100/100

15%

TTI (Time to Interactive)

Value42.7 s

0/100

10%

Network Requests Diagram

ca.postcodebase.com

29 ms

ca.postcodebase.com

59 ms

js_YD9ro0PAqY25gGWrTki6TjRUG8TdokmmxjfqpNNfzVU.js

36 ms

js_fnFMT3X1_bhCDaBABvWwi8Yq5Useb8r_XorbufldYMA.js

56 ms

js_-oEDdwe4XpUqUj4W0KJs96ENaXIrGvjBvIP-WYYBi54.js

57 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 31% of them (13 requests) were addressed to the original Ca.postcodebase.com, 55% (23 requests) were made to Zip.postcodebase.com and 5% (2 requests) were made to A.pub.network. The less responsive or slowest element that took the longest time to load (467 ms) relates to the external source Cmp.inmobi.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 162.5 kB (27%)

Content Size

604.4 kB

After Optimization

441.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ca.postcodebase.com main page is 604.4 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. 40% of websites need less resources to load. Javascripts take 313.7 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 39.4 kB

  • Original 50.2 kB
  • After minification 50.2 kB
  • After compression 10.8 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 39.4 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 228.2 kB
  • After minification 228.2 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. Ca Post Code Base images are well optimized though.

JavaScript Optimization

-39%

Potential reduce by 123.0 kB

  • Original 313.7 kB
  • After minification 313.7 kB
  • After compression 190.7 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 123.0 kB or 39% of the original size.

CSS Optimization

-1%

Potential reduce by 105 B

  • Original 12.2 kB
  • After minification 12.2 kB
  • After compression 12.1 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. Ca.postcodebase.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 27 (68%)

Requests Now

40

After Optimization

13

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ca Post Code Base. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

ca.postcodebase.com accessibility score

98

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.

Best Practices

ca.postcodebase.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

ca.postcodebase.com SEO score

93

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

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 Ca.postcodebase.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 Ca.postcodebase.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 data is detected on the main page of Ca Post Code Base. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: