Spain · Madrid Completed: Apr 16, 2026 18:11 UTCMobile 375 × 812
Desktop 1440 × 900
Score: 71 / 100
Based on 8 categories, 0 sections
Room to improve — your 5.5s load time is above Google's 2.5s 'Good' threshold.
Several missing protections leave your users and data exposed.
Several issues make your site difficult for assistive technology users.
Well-optimized for search — your content is discoverable.
Good server performance with room for optimization.
Mostly compliant — a few items need attention.
Rich content metadata — your pages look great everywhere.
Heavier than average — reducing page weight saves energy and bandwidth.
The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.
Weights reflect general web best practices. Individual needs may differ.
Content-Security-Policy header is missing
Security gaps expose your site and users to attacks, eroding trust.
No Content-Security-Policy header found
Security gaps expose your site and users to attacks, eroding trust.
Page weighs 8.9 MB (5.6 MB transferred)
Performance issues directly impact user engagement and conversion rates.
1 control(s) without accessible label
Accessibility issues exclude users with disabilities — up to 15% of your potential audience.
1 image(s) missing alt attribute
Accessibility issues exclude users with disabilities — up to 15% of your potential audience.
High impact, low effort — start here.
High impact, requires investment.
Small gains, minimal effort.
Nothing in this quadrant — good news.
Low impact, high effort — do last.
Nothing in this quadrant — good news.
[](https://beavercheck.com/results/27a5bb88-497c-42c9-938e-1b8b09efeb58)<a href="https://beavercheck.com/results/27a5bb88-497c-42c9-938e-1b8b09efeb58"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fusps.com" alt="BeaverCheck Score"></a>https://beavercheck.com/badge?url=https%3A%2F%2Fusps.comThis badge auto-updates with your latest scan result.
Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Your LCP of 5.5s exceeds Google's 2.5s 'Good' threshold and the 1 performance issue below directly contributes to it. Accessibility issues exclude users who rely on assistive technology — an estimated 15% of your potential audience. Addressing the critical issues below would have the most immediate impact on your user trust.
8 barrier(s) likely increasing bounce by ~32%.
Page takes 5.5s to load
+12% bounceUsers abandon at ~3s — you're 3.0s over the 2.5s threshold
Fix: Optimize render-blocking resources, preload the hero image, and compress images
Page feels frozen for 1.2s
+5% bounceClicks on the primary CTA are ignored while JavaScript runs
Fix: Break up long tasks; defer non-critical JavaScript to post-hydration
No Content-Security-Policy header
+1% bounceHigher XSS blast radius — one compromised script can exfiltrate the checkout form
Fix: Ship a reporting-only CSP first, then enforce once violations are clean
Layout shifts during page load
+3% bounceContent movement causes mis-clicks on CTAs and form fields
Fix: Add width/height to images; reserve space for late-loading embeds
1 form field(s) without a label
+2% bounceScreen readers skip unlabeled fields; autofill can't identify them; checkout abandonment spikes
Fix: Associate every input with a visible <label for="…">; add autocomplete attributes
Viewport disables user zoom
+2% bounceVisitors with low vision can't read the page — and some jurisdictions treat this as a legal risk
Fix: Remove user-scalable=no; drop maximum-scale if it's below 2
5 link(s) with generic text ("click here", "read more")
+1% bounceScreen-reader users navigating by link list see no context — and search engines can't infer relevance
Fix: Rewrite with descriptive phrases that identify the destination
3 broken link(s) on the page
+5% bounceClicks land on 404s — trust drops and the session often ends
Fix: Fix or remove the broken destinations surfaced on the Content tab
Preliminary CRO audit — each barrier links to the tab with detailed analysis.
$600 investment → $4,113/month returns + USD 157,500 risk avoided
$600
6h · 5 findings
$4,113 /mo
~$49,356 / year
USD 157,500
if kept compliant
$100 — in quick wins — start here for the fastest payback
Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.
6.0 developer hours at $100/hr
Based on United States rates ($100/hr)
Start here for the best return on investment
$13,126 / month at risk
~$157,517 / year if left unfixed
$157,500
+8 more
$1.42 /mo
17700.4 MB/mo × 0.080 USD/GB
Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.
Unique monthly visitors from your analytics
Purchases, signups, or key actions
Optional — for revenue estimation
more engaged visitors from reduced bounce
Fix 5 critical issues to capture this value
Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.
Your site's LCP: → estimated after fixes.
These are estimates based on industry research — actual results vary
Your data stays in your browser — nothing is sent to our servers
Thanks for your feedback!
We'll use a cached audit if available, or offer to scan.
Industry-standard audits powered by Google Lighthouse.
Key metrics that affect user experience.
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
2.45 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
5.46 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.24 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.131
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.89 s
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
28.13 s
Audit breakdown by category with detailed findings.
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Performance issues directly impact user engagement and conversion rates.
Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling
Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.
Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.
Source: Google web.dev / Lighthouse
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.
Performance issues directly impact user engagement and conversion rates.
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
Performance issues directly impact user engagement and conversion rates.
Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.
Performance issues directly impact user engagement and conversion rates.
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
Performance issues directly impact user engagement and conversion rates.
Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
Forever Stamps available from The Postal Store. div#usps-carousel > div.carousel-inner > div.carousel-item > img.d-block | www.usps.com/assets/images/welcome/carousel/apr26-stamps.png | 1.9 MiB | 1.9 MiB |
A person holding up a passport with luggage in the background. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/passport-luggage.jpg | 157.6 KiB | 144.2 KiB |
An Informed Delivery preview email on a smartphone. div.jumbotron > div.container-fluid > div.row > img | www.usps.com/assets/images/welcome/premium/id-app-m.jpg | 125.3 KiB | 119.0 KiB |
Person placing a label on a package. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/cns26-34.jpg | 111.2 KiB | 97.7 KiB |
Happy Birthday Forever Stamp. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/birthday.jpg | 104.6 KiB | 91.0 KiB |
An open PO Box with mail inside and a key in the lock. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/po-boxes-box.jpg | 76.3 KiB | 62.7 KiB |
USPS 250th anniversary. Delivering since 1775. Celebrate 250 years of USPS! Exp… div > div.container-fluid > a > img.d-lg-none | www.usps.com/assets/images/welcome/featured/250-landing-promo-m.jpg | 36.5 KiB | 18.2 KiB |
A postmark stamp that shows a cancellation date of January 13, 2026, in New Yor… div.inpage-alert > div.container-fluid > div.alert-p > img | www.usps.com/assets/images/campaigns/postmark/postmark-home.png | 16.9 KiB | 16.1 KiB |
body > div#global-footer--wrap > footer.global-footer > a.global-footer--logo-link body > div#global-footer--wrap > footer.global-footer > a.global-footer--logo-link | www.usps.com/global-elements/footer/images/footer-logo.png | 5.3 KiB | 4.3 KiB |
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
Performance issues directly impact user engagement and conversion rates.
Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Duration |
|---|---|---|
| www.usps.com/global-elements/header/css/megamenu-v4.css | 8.0 KiB | |
| www.usps.com/assets/css/welcome/bootstrap.css | 26.6 KiB | 300 ms |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Performance issues directly impact user engagement and conversion rates.
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| usps.com/ | 1.1 s |
| www.usps.com/ | 0.0 ms |
These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS
Performance issues directly impact user engagement and conversion rates.
| Element | Layout shift score |
|---|---|
Click-N-Ship®
Buy Stamps
Informed Delivery®
PO Boxes™
Calculate a Price
Hold Ma… body > div.quicktools | 0.078 |
Postmarks: If you want to ensure that your mail receives a postmark on the day … body > div.inpage-alert | 0.053 |
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.
Performance issues directly impact user engagement and conversion rates.
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.usps.com/assets/css/welcome/bootstrap.css | 25.9 KiB | 24.4 KiB |
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Multi-megabyte JavaScript bundles delay every interactive feature on the page.
This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.
Source: Google web.dev / Lighthouse
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.googletagmanager.com/gtm.js?id=GTM-MVCC8H | 210.0 KiB | 66.3 KiB |
| www.googletagmanager.com/gtag/destination?id=DC-3976941&cx=c>m=4e64f0h1 | 129.2 KiB | 64.8 KiB |
| www.googletagmanager.com/gtag/js?id=AW-978081151 | 141.3 KiB | 63.4 KiB |
| www.googletagmanager.com/gtm.js?id=GTM-K2FRZL4>m=4e64f0h1 | 160.7 KiB | 58.2 KiB |
| www.usps.com/W0ci2XILbs/gI8D0ObD/fB/hibukfp0ELJDXD3kXY/cw0VPRww/OzB/yLgsuPigB | 168.7 KiB | 37.3 KiB |
| /signals/config/533374513433337?v=2.9.298&r=stable&domain... | 126.8 KiB | 36.7 KiB |
| connect.facebook.net/en_US/fbevents.js | 96.3 KiB | 33.4 KiB |
| www.usps.com/global-elements/footer/script/jquery-3.7.1.js | 29.7 KiB | 20.1 KiB |
| www.usps.com/assets/script/globals/jquery.min.js | 30.2 KiB | 20.1 KiB |
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.
Performance issues directly impact user engagement and conversion rates.
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Script Evaluation | 3.2 s |
| Other | 998 ms |
| Script Parsing & Compilation | 464 ms |
| Style & Layout | 358 ms |
| Garbage Collection | 92 ms |
| Rendering | 79 ms |
| Parse HTML & CSS | 71 ms |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Performance issues directly impact user engagement and conversion rates.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
Forever Stamps available from The Postal Store. div#usps-carousel > div.carousel-inner > div.carousel-item > img.d-block | www.usps.com/assets/images/welcome/carousel/apr26-stamps.png |
A person holding up a passport with luggage in the background. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/passport-luggage.jpg |
Person placing a label on a package. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/cns26-34.jpg |
Happy Birthday Forever Stamp. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/birthday.jpg |
An open PO Box with mail inside and a key in the lock. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/po-boxes-box.jpg |
An Informed Delivery preview email on a smartphone. div.jumbotron > div.container-fluid > div.row > img | www.usps.com/assets/images/welcome/premium/id-app-m.jpg |
USPS 250th anniversary. Delivering since 1775. Celebrate 250 years of USPS! Exp… div > div.container-fluid > a > img.d-lg-none | www.usps.com/assets/images/welcome/featured/250-landing-promo-m.jpg |
USPS mobile logo div.nav-full > div.mobile-header > a.mobile-logo > img | www.usps.com/assets/images/home/logo_mobile.svg |
Tracking Icon ul > li > a > img | www.usps.com/assets/images/home/tracking.svg |
Search Icon div.nav-full > div.mobile-header > a.mobile-search > img | www.usps.com/assets/images/home/search.svg |
Informed Delivery Icon ul > li > a > img | www.usps.com/global-elements/header/images/utility-header/mailman.svg |
Post Office Locator Icon ul > li > a > img | www.usps.com/assets/images/home/location.svg |
Stamps Icon ul > li > a > img | www.usps.com/assets/images/home/stamps.svg |
ul > li > a > img ul > li > a > img | www.usps.com/global-elements/header/images/book-passport-appt.svg |
Schedule a Pickup Icon ul > li > a > img | www.usps.com/assets/images/home/schedule_pickup.svg |
Calculate a Price Icon ul > li > a > img | www.usps.com/assets/images/home/calculate_price.svg |
Zip Code™ Lookup Icon ul > li > a > img | www.usps.com/assets/images/home/find_zip.svg |
Holdmail Icon ul > li > a > img | www.usps.com/assets/images/home/holdmail.svg |
ul > li > a > img ul > li > a > img | www.usps.com/global-elements/header/images/transit-time.svg |
Change of Address Icon ul > li > a > img | www.usps.com/assets/images/home/change_address.svg |
Post Office Boxes Icon ul > li > a > img | www.usps.com/assets/images/home/po_box.svg |
Shipping Supplies Icon ul > li > a > img | www.usps.com/assets/images/home/free_boxes.svg |
ul > li > a > img ul > li > a > img | www.usps.com/assets/images/home/hs-code-search.svg |
Stamp Icon Link for Buy Stamps div.col-lg-2 > div.article > a > img.mx-auto | www.usps.com/assets/images/home/stamps.svg |
Mail Carrier Icon Link for Informed Delivery div.col-lg-2 > div.article > a > img.mx-auto | www.usps.com/global-elements/header/images/utility-header/mailman.svg |
PO Box Icon Link for PO Boxes div.col-4 > div.article > a > img.mx-auto | www.usps.com/assets/images/home/po_box.svg |
Calculator Icon Link for Calculate a Price div.col-4 > div.article > a > img.mx-auto | www.usps.com/assets/images/home/calculate_price.svg |
Stop mail Icon Link for Hold Mail div.col-4 > div.article > a > img.mx-auto | www.usps.com/assets/images/home/holdmail.svg |
ZIP Code Location Finder Icon Link for Look up a ZIP Code div.col-4 > div.article > a > img.mx-auto | www.usps.com/assets/images/home/find_zip.svg |
House Icon Link for Change My Address div.col-4 > div.article > a > img.mx-auto | www.usps.com/assets/images/home/change_address.svg |
Box and clock Icon Link for Schedule a Pickup div.col-4 > div.article > a > img.mx-auto | www.usps.com/assets/images/home/schedule_pickup.svg |
Click-N-Ship Icon ul > li > a > img | www.usps.com/assets/images/home/featured_clicknship.svg |
Printer Icon Link for Click-N-Ship div.col-lg-2 > div.article > a > img.mx-auto | www.usps.com/assets/images/home/featured_clicknship.svg |
A postmark stamp that shows a cancellation date of January 13, 2026, in New Yor… div.inpage-alert > div.container-fluid > div.alert-p > img | www.usps.com/assets/images/campaigns/postmark/postmark-home.png |
hamburger menu Icon div.nav-full > div.mobile-header > a.mobile-hamburger > img | www.usps.com/assets/images/home/hamburger.svg |
Image of Threads social media icon. ul.global-footer--social > li > a > img | www.usps.com/global-elements/footer/images/threads_logo.png |
Image of X social media icon. ul.global-footer--social > li > a > img | www.usps.com/global-elements/footer/images/x_logo.png |
Image of Facebook social media icon. ul.global-footer--social > li > a > img | www.usps.com/global-elements/footer/images/facebook_logo.png |
Image of instagram social media icon. ul.global-footer--social > li > a > img | www.usps.com/global-elements/footer/images/instagram_logo.png |
Image of Pinterest social media icon. ul.global-footer--social > li > a > img | www.usps.com/global-elements/footer/images/pinterest_logo.png |
Image of Youtube social media icon. ul.global-footer--social > li > a > img | www.usps.com/global-elements/footer/images/youtube_logo.png |
body > img body > img | /pixel/capture?tags=8dd8cf55-3ae9-49dc-a25a-83dcfc60de58&... |
More information about the performance of your application. These numbers don't directly affect the Performance score.
These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.
Each ARIA `role` supports a specific subset of `aria-*` attributes. Mismatching these invalidates the `aria-*` attributes. Learn how to match ARIA attributes to their roles.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Slide 1 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li.active |
Slide 2 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li |
Slide 3 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li |
Slide 4 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li |
Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Skip Quick Tools Links
Quick Tools
Track a Package
Informed Delivery
… div#g-navigation > div.nav-full > nav > ul.nav-list |
Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. Learn more about ARIA roles and required parent element.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Quick Tools nav > ul.nav-list > li.qt-nav > a.nav-first-element |
Send nav > ul.nav-list > li.menuheader > a#mail-ship-width |
Receive nav > ul.nav-list > li.menuheader > a.menuitem |
Shop nav > ul.nav-list > li.menuheader > a.menuitem |
Business nav > ul.nav-list > li.menuheader > a.menuitem |
International nav > ul.nav-list > li.menuheader > a.menuitem |
Help nav > ul.nav-list > li.menuheader > a.menuitem |
PO BOXES div.empty-search > ul > li > a |
PASSPORTS div.empty-search > ul > li > a |
FREE BOXES div.empty-search > ul > li > a |
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.
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
body > img body > img |
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
body > div#g-navigation > div.nav-full > a#endnav |
USPS 250th anniversary. Delivering since 1775. Celebrate 250 years of USPS! Exp… section.jumbotron > div > div.container-fluid > a |
body > div#global-footer--wrap > footer.global-footer > a.global-footer--logo-link body > div#global-footer--wrap > footer.global-footer > a.global-footer--logo-link |
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.
Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Skip Quick Tools Links
Quick Tools
Track a Package
Informed Delivery
… div.nav-full > nav > ul.nav-list > li.qt-nav |
Skip Send Links
Send
Tools
Click-N-Ship
Stamps & Supplies
Look Up a ZIP Code™
C… div.nav-full > nav > ul.nav-list > li.menuheader |
Skip Receive Links
Receive
Tools
Tracking
Informed Delivery
Intercept a Package… div.nav-full > nav > ul.nav-list > li.menuheader |
Skip Shop Links
Shop
Shop
Stamps
Shipping Supplies
Cards & Envelopes
Personaliz… div.nav-full > nav > ul.nav-list > li.menuheader |
Skip Business Links
Business
Tools
Calculate a Business Price
Every Door Direct… div.nav-full > nav > ul.nav-list > li.menuheader |
Skip International Links
International
Tools
Calculate International Prices
Pri… div.nav-full > nav > ul.nav-list > li.menuheader |
Skip Help Links
Help
FAQs
Finding Missing Mail
Filing a Claim
Requesting a Refu… div.nav-full > nav > ul.nav-list > li.menuheader |
Slide 1 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li.active |
Slide 2 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li |
Slide 3 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li |
Slide 4 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li |
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
head > meta head > meta |
Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
USPS Service Updates li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Forms & Publications li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Government Services li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Rights & Permissions li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Postal Inspectors li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Inspector General li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Postal Explorer li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
National Postal Museum li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Resources for Developers li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Privacy Policy li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Terms of Use li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
html html |
These items highlight common accessibility best practices.
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| AttributionReporting | |
| SharedStorage | c.amazon-adsystem.com/aat/amzn.js line 1, col 7935 |
Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
Attestation check for Shared Storage on https://ara.paa-reporting-advertising.amazon failed. | |
Creating a worker from 'blob:https://www.usps.com/961ef534-3a48-492b-b8b3-799fe8f0a277' violates the following Content Security Policy directive: "script-src 'self' 'unsafe-inline' 'unsafe-eval' https:". Note that 'worker-src' was not explicitly set, so 'script-src' is used as a fallback. The action has been blocked. |
Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.
Performance issues directly impact user engagement and conversion rates.
| Issue type |
|---|
| Content security policy |
Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.
Performance issues directly impact user engagement and conversion rates.
These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
Performance issues directly impact user engagement and conversion rates.
| Link destination | Link Text |
|---|---|
| www.usps.com/manage/informed-delivery.htm | Learn More |
| www.usps.com/manage/informed-delivery.htm | Learn More |
| /s/article/Requirements-and-Standards-for-Sending-Domesti... | Learn more |
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
body > img body > img |
Format your HTML in a way that enables crawlers to better understand your app’s content.
Industry-standard audits powered by Google Lighthouse. — Desktop
Key metrics that affect user experience. — Desktop
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.09 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.83 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
162 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.027
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.39 s
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
4.50 s
Audit breakdown by category with detailed findings.
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Performance issues directly impact user engagement and conversion rates.
Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling
Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.
Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.
Source: Google web.dev / Lighthouse
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.
Performance issues directly impact user engagement and conversion rates.
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
Performance issues directly impact user engagement and conversion rates.
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
Performance issues directly impact user engagement and conversion rates.
Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.
Performance issues directly impact user engagement and conversion rates.
A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.
Performance issues directly impact user engagement and conversion rates.
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
Forever Stamps available from The Postal Store. div#usps-carousel > div.carousel-inner > div.carousel-item > img.d-block | www.usps.com/assets/images/welcome/carousel/apr26-stamps.png | 1.9 MiB | 1.9 MiB |
A person holding up a passport with luggage in the background. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/passport-luggage.jpg | 157.6 KiB | 107.8 KiB |
Person placing a label on a package. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/cns26-34.jpg | 111.2 KiB | 61.7 KiB |
Happy Birthday Forever Stamp. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/birthday.jpg | 104.6 KiB | 55.5 KiB |
An open PO Box with mail inside and a key in the lock. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/po-boxes-box.jpg | 76.3 KiB | 27.3 KiB |
A postmark stamp that shows a cancellation date of January 13, 2026, in New Yor… div.inpage-alert > div.container-fluid > div.alert-p > img | www.usps.com/assets/images/campaigns/postmark/postmark-home.png | 16.9 KiB | 15.2 KiB |
USPS 250th anniversary. Delivering since 1775. Celebrate 250 years of USPS! Exp… div > div.container-fluid > a > img.d-lg-block | www.usps.com/assets/images/welcome/featured/250-landing-promo.jpg | 35.6 KiB | 13.0 KiB |
body > div#global-footer--wrap > footer.global-footer > a.global-footer--logo-link body > div#global-footer--wrap > footer.global-footer > a.global-footer--logo-link | www.usps.com/global-elements/footer/images/footer-logo.png | 5.3 KiB | 4.3 KiB |
Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size |
|---|---|
| www.usps.com/assets/css/welcome/bootstrap.css | 26.6 KiB |
| www.usps.com/global-elements/header/css/megamenu-v4.css | 8.0 KiB |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| usps.com/ | 574 ms |
| www.usps.com/ | 0.0 ms |
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Performance issues directly impact user engagement and conversion rates.
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.
Performance issues directly impact user engagement and conversion rates.
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.usps.com/assets/css/welcome/bootstrap.css | 25.9 KiB | 24.2 KiB |
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Multi-megabyte JavaScript bundles delay every interactive feature on the page.
This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.
Source: Google web.dev / Lighthouse
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.googletagmanager.com/gtm.js?id=GTM-MVCC8H | 210.0 KiB | 66.3 KiB |
| www.googletagmanager.com/gtag/destination?id=DC-3976941&cx=c>m=4e64f0 | 129.2 KiB | 64.8 KiB |
| www.googletagmanager.com/gtag/js?id=AW-978081151 | 141.3 KiB | 62.8 KiB |
| www.googletagmanager.com/gtm.js?id=GTM-K2FRZL4>m=4e64f0 | 160.7 KiB | 58.2 KiB |
| www.usps.com/W0ci2XILbs/gI8D0ObD/fB/hibukfp0ELJDXD3kXY/cw0VPRww/OzB/yLgsuPigB | 168.7 KiB | 37.3 KiB |
| /signals/config/533374513433337?v=2.9.298&r=stable&domain... | 126.9 KiB | 36.8 KiB |
| connect.facebook.net/en_US/fbevents.js | 96.3 KiB | 33.8 KiB |
| www.usps.com/global-elements/footer/script/jquery-3.7.1.js | 29.7 KiB | 20.1 KiB |
| www.usps.com/assets/script/globals/jquery.min.js | 30.2 KiB | 20.1 KiB |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Performance issues directly impact user engagement and conversion rates.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
Forever Stamps available from The Postal Store. div#usps-carousel > div.carousel-inner > div.carousel-item > img.d-block | www.usps.com/assets/images/welcome/carousel/apr26-stamps.png |
A person holding up a passport with luggage in the background. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/passport-luggage.jpg |
Person placing a label on a package. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/cns26-34.jpg |
Happy Birthday Forever Stamp. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/birthday.jpg |
An open PO Box with mail inside and a key in the lock. div.container-fluid > div.row > div.col-lg-7 > img | www.usps.com/assets/images/welcome/featured/po-boxes-box.jpg |
USPS 250th anniversary. Delivering since 1775. Celebrate 250 years of USPS! Exp… div > div.container-fluid > a > img.d-lg-block | www.usps.com/assets/images/welcome/featured/250-landing-promo.jpg |
ul > div.desktop-only > a > img | www.usps.com/manage/go-now.png |
ul.tools > div.desktop-only > a > img | www.usps.com/international/go-now.png |
ul.tools > div.desktop-only > a > img | www.usps.com/business/go-now.png |
ul > div.desktop-only > a > img | www.usps.com/store/go-now.png |
ul > div.desktop-only > a > img | www.usps.com/ship/go-now.png |
Stamp Icon Link for Buy Stamps div.col-lg-2 > div.article > a > img.mx-auto | www.usps.com/assets/images/home/stamps.svg |
Mail Carrier Icon Link for Informed Delivery div.col-lg-2 > div.article > a > img.mx-auto | www.usps.com/global-elements/header/images/utility-header/mailman.svg |
Printer Icon Link for Click-N-Ship div.col-lg-2 > div.article > a > img.mx-auto | www.usps.com/assets/images/home/featured_clicknship.svg |
A postmark stamp that shows a cancellation date of January 13, 2026, in New Yor… div.inpage-alert > div.container-fluid > div.alert-p > img | www.usps.com/assets/images/campaigns/postmark/postmark-home.png |
Image of USPS.com logo. div#g-navigation > div.nav-full > a.global-logo > img | www.usps.com/global-elements/header/images/utility-header/logo-sb.svg |
Image of Threads social media icon. ul.global-footer--social > li > a > img | www.usps.com/global-elements/footer/images/threads_logo.png |
Image of X social media icon. ul.global-footer--social > li > a > img | www.usps.com/global-elements/footer/images/x_logo.png |
Image of Facebook social media icon. ul.global-footer--social > li > a > img | www.usps.com/global-elements/footer/images/facebook_logo.png |
Image of instagram social media icon. ul.global-footer--social > li > a > img | www.usps.com/global-elements/footer/images/instagram_logo.png |
Image of Pinterest social media icon. ul.global-footer--social > li > a > img | www.usps.com/global-elements/footer/images/pinterest_logo.png |
Image of Youtube social media icon. ul.global-footer--social > li > a > img | www.usps.com/global-elements/footer/images/youtube_logo.png |
body > img body > img | /pixel/capture?tags=8dd8cf55-3ae9-49dc-a25a-83dcfc60de58&... |
More information about the performance of your application. These numbers don't directly affect the Performance score.
These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.
Each ARIA `role` supports a specific subset of `aria-*` attributes. Mismatching these invalidates the `aria-*` attributes. Learn how to match ARIA attributes to their roles.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Slide 1 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li.active |
Slide 2 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li |
Slide 3 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li |
Slide 4 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li |
Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Skip Quick Tools Links
Quick Tools
Track a Package
Informed Delivery
F… div#g-navigation > div.nav-full > nav > ul.nav-list |
Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. Learn more about ARIA roles and required parent element.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Quick Tools nav > ul.nav-list > li.qt-nav > a.nav-first-element |
Send nav > ul.nav-list > li.menuheader > a#mail-ship-width |
Receive nav > ul.nav-list > li.menuheader > a.menuitem |
Shop nav > ul.nav-list > li.menuheader > a.menuitem |
Business nav > ul.nav-list > li.menuheader > a.menuitem |
International nav > ul.nav-list > li.menuheader > a.menuitem |
Help nav > ul.nav-list > li.menuheader > a.menuitem |
Search USPS.com nav > ul.nav-list > li.nav-search > a.menuitem |
PO BOXES div.empty-search > ul > li > a |
PASSPORTS div.empty-search > ul > li > a |
FREE BOXES div.empty-search > ul > li > a |
PO BOXES div.empty-search > ul > li > a |
PASSPORTS div.empty-search > ul > li > a |
FREE BOXES div.empty-search > ul > li > a |
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.
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
body > img body > img |
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
body > div#g-navigation > div.nav-full > a#endnav |
USPS 250th anniversary. Delivering since 1775. Celebrate 250 years of USPS! Exp… section.jumbotron > div > div.container-fluid > a |
body > div#global-footer--wrap > footer.global-footer > a.global-footer--logo-link body > div#global-footer--wrap > footer.global-footer > a.global-footer--logo-link |
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.
Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Skip Quick Tools Links
Quick Tools
Track a Package
Informed Delivery
F… div.nav-full > nav > ul.nav-list > li.qt-nav |
Skip Send Links
Send
Tools
Click-N-Ship
Stamps & Supplies
Look Up a ZIP Code™
C… div.nav-full > nav > ul.nav-list > li.menuheader |
Skip Receive Links
Receive
Tools
Tracking
Informed Delivery
Intercept a Package… div.nav-full > nav > ul.nav-list > li.menuheader |
Skip Shop Links
Shop
Shop
Stamps
Shipping Supplies
Cards & Envelopes
Personaliz… div.nav-full > nav > ul.nav-list > li.menuheader |
Skip Business Links
Business
Tools
Calculate a Business Price
Every Door Direct… div.nav-full > nav > ul.nav-list > li.menuheader |
Skip International Links
International
Tools
Calculate International Prices
Pri… div.nav-full > nav > ul.nav-list > li.menuheader |
Skip Help Links
Help
FAQs
Finding Missing Mail
Filing a Claim
Requesting a Refu… div.nav-full > nav > ul.nav-list > li.menuheader |
Skip Search
Search USPS.com
Search USPS.com
Search USPS.com
Top Searches
PO B… div.nav-full > nav > ul.nav-list > li.nav-search |
Slide 1 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li.active |
Slide 2 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li |
Slide 3 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li |
Slide 4 div#usps-carousel > div.carousel-inner > ol.carousel-indicators > li |
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
head > meta head > meta |
Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Contact Us li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Site Index li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
FAQs li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Feedback li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
USPS Service Updates li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Forms & Publications li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Government Services li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Rights & Permissions li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Postal Inspectors li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Inspector General li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Postal Explorer li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
National Postal Museum li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Resources for Developers li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Privacy Policy li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
Terms of Use li.global-footer--navigation-category > ol.global-footer--navigation-options > li > a |
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
html html |
These items highlight common accessibility best practices.
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| AttributionReporting | |
| SharedStorage | c.amazon-adsystem.com/aat/amzn.js line 1, col 7935 |
Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
Attestation check for Shared Storage on https://ara.paa-reporting-advertising.amazon failed. | |
Creating a worker from 'blob:https://www.usps.com/54af9f0e-2b4c-40fa-9eb0-46935dddacdb' violates the following Content Security Policy directive: "script-src 'self' 'unsafe-inline' 'unsafe-eval' https:". Note that 'worker-src' was not explicitly set, so 'script-src' is used as a fallback. The action has been blocked. |
Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.
Performance issues directly impact user engagement and conversion rates.
| Issue type |
|---|
| Content security policy |
Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.
Performance issues directly impact user engagement and conversion rates.
These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
Performance issues directly impact user engagement and conversion rates.
| Link destination | Link Text |
|---|---|
| www.usps.com/manage/informed-delivery.htm | Learn More |
| www.usps.com/manage/informed-delivery.htm | Learn More |
| /s/article/Requirements-and-Standards-for-Sending-Domesti... | Learn more |
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
body > img body > img |
Format your HTML in a way that enables crawlers to better understand your app’s content.
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