Tools & Wizards About Us
ircalc.usps.com screenshot

Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 72

    SEO

    Google-friendlier than
    31% of websites

ircalc.usps.com

Retail Postage Price Calculator

Page Load Speed

1.1 sec in total

First Response

472 ms

Resources Loaded

661 ms

Page Rendered

1 ms

ircalc.usps.com screenshot

About Website

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

Visit ircalc.usps.com

Key Findings

We analyzed Ircalc.usps.com page load time and found that the first response time was 472 ms and then it took 662 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

ircalc.usps.com performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

75/100

10%

LCP (Largest Contentful Paint)

Value2.3 s

93/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value950 ms

29/100

30%

CLS (Cumulative Layout Shift)

Value0.378

28/100

15%

TTI (Time to Interactive)

Value11.4 s

19/100

10%

Network Requests Diagram

ircalc.usps.com

472 ms

StyleSheet110204.css

11 ms

WebResource.axd

30 ms

WebResource.axd

27 ms

IntlRetailScript110300.js

24 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 98% of them (46 requests) were addressed to the original Ircalc.usps.com, 2% (1 request) were made to Tags.tiqcdn.com. The less responsive or slowest element that took the longest time to load (472 ms) belongs to the original domain Ircalc.usps.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 335.3 kB (65%)

Content Size

513.4 kB

After Optimization

178.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ircalc.usps.com main page is 513.4 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. 25% of websites need less resources to load. Javascripts take 302.3 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 92.6 kB

  • Original 114.7 kB
  • After minification 108.2 kB
  • After compression 22.0 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 92.6 kB or 81% of the original size.

Image Optimization

-4%

Potential reduce by 3.6 kB

  • Original 82.2 kB
  • After minification 78.6 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. Ircalc Usps images are well optimized though.

JavaScript Optimization

-75%

Potential reduce by 227.6 kB

  • Original 302.3 kB
  • After minification 294.2 kB
  • After compression 74.7 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 227.6 kB or 75% of the original size.

CSS Optimization

-81%

Potential reduce by 11.5 kB

  • Original 14.3 kB
  • After minification 11.4 kB
  • After compression 2.8 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. Ircalc.usps.com needs all CSS files to be minified and compressed as it can save up to 11.5 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (24%)

Requests Now

46

After Optimization

35

  • Images
  • JavaScript
  • CSS

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ircalc Usps. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

ircalc.usps.com

ircalc.usps.com

472 ms

StyleSheet110204.css

StyleSheet110204.css

11 ms

WebResource.axd

WebResource.axd

30 ms

WebResource.axd

WebResource.axd

27 ms

IntlRetailScript110300.js

IntlRetailScript110300.js

24 ms

ScriptResource.axd

ScriptResource.axd

26 ms

ScriptResource.axd

ScriptResource.axd

22 ms

CombineScriptsHandler.ashx

CombineScriptsHandler.ashx

48 ms

js

js

56 ms

Background.jpg

Background.jpg

45 ms

ButtonMobile.jpg

ButtonMobile.jpg

44 ms

ButtonBusiness.jpg

ButtonBusiness.jpg

46 ms

ButtonPostalExplorer.jpg

ButtonPostalExplorer.jpg

44 ms

ButtonUSPS.jpg

ButtonUSPS.jpg

45 ms

USPSLogo.jpg

USPSLogo.jpg

45 ms

Calendar.jpg

Calendar.jpg

47 ms

ButtonCarouselLeft.jpg

ButtonCarouselLeft.jpg

46 ms

PriorityMailExpressFlatRateEnvelope.jpg

PriorityMailExpressFlatRateEnvelope.jpg

46 ms

QuestionMark.jpg

QuestionMark.jpg

47 ms

PriorityMailExpressLegalFlatRateEnvelope.jpg

PriorityMailExpressLegalFlatRateEnvelope.jpg

47 ms

PriorityMailExpressPaddedFlatRateEnvelope.jpg

PriorityMailExpressPaddedFlatRateEnvelope.jpg

47 ms

PriorityMailLargeFlatRateBox.jpg

PriorityMailLargeFlatRateBox.jpg

49 ms

PriorityMailMediumFlatRateBox.jpg

PriorityMailMediumFlatRateBox.jpg

48 ms

PriorityMailSmallFlatRateBox.jpg

PriorityMailSmallFlatRateBox.jpg

54 ms

PriorityMailDVDFlatRatepricedbox.jpg

PriorityMailDVDFlatRatepricedbox.jpg

47 ms

PriorityMailLargeVideoFlatRatepricedbox.jpg

PriorityMailLargeVideoFlatRatepricedbox.jpg

49 ms

PriorityMailFlatRateEnvelope.jpg

PriorityMailFlatRateEnvelope.jpg

49 ms

PriorityMailLegalFlatRateEnvelope.jpg

PriorityMailLegalFlatRateEnvelope.jpg

50 ms

PriorityMailPaddedFlatRateEnvelope.jpg

PriorityMailPaddedFlatRateEnvelope.jpg

51 ms

PriorityMailGiftCardFlatRateEnvelope.jpg

PriorityMailGiftCardFlatRateEnvelope.jpg

49 ms

PriorityMailSmallFlatRateEnvelope.jpg

PriorityMailSmallFlatRateEnvelope.jpg

50 ms

PriorityMailWindowFlatRateEnvelope.jpg

PriorityMailWindowFlatRateEnvelope.jpg

51 ms

ButtonCarouselRight.jpg

ButtonCarouselRight.jpg

52 ms

TabArrow.gif

TabArrow.gif

52 ms

Postcard.jpg

Postcard.jpg

54 ms

Envelope.jpg

Envelope.jpg

52 ms

EnvelopeLarge.jpg

EnvelopeLarge.jpg

53 ms

Package.jpg

Package.jpg

55 ms

PackageLarge.jpg

PackageLarge.jpg

54 ms

ButtonContinue.jpg

ButtonContinue.jpg

56 ms

facebook.png

facebook.png

53 ms

twitter.png

twitter.png

54 ms

pinterest.png

pinterest.png

49 ms

youtube.png

youtube.png

47 ms

utag.js

utag.js

50 ms

HeaderBar.jpg

HeaderBar.jpg

18 ms

logo-mini.png

logo-mini.png

18 ms

Accessibility Review

ircalc.usps.com accessibility score

95

Accessibility Issues

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

ircalc.usps.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

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

ircalc.usps.com SEO score

72

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

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 doesn't use legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ircalc.usps.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Ircalc.usps.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

ircalc.usps.com

Open Graph description is not detected on the main page of Ircalc Usps. 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: