Spain · Madrid Completed: Apr 21, 2026 23:13 UTCMobile 375 × 812
Desktop 1440 × 900
Score: 76 / 100
Based on 8 categories, 0 sections
Decent speed, but optimizing further could improve engagement.
Good foundation, but a few gaps could be exploited.
Several issues make your site difficult for assistive technology users.
Well-optimized for search — your content is discoverable.
Solid infrastructure — fast server responses across the board.
Mostly compliant — a few items need attention.
Missing metadata means poor previews on social media and search.
Lean and efficient — low environmental impact per visit.
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.
HSTS 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.
1 image(s) missing alt attribute
Accessibility issues exclude users with disabilities — up to 15% of your potential audience.
1 image-in-link without alt text
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/8e80ca2c-674b-4fb6-85ea-de4393796dc0)<a href="https://beavercheck.com/results/8e80ca2c-674b-4fb6-85ea-de4393796dc0"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fdc.gov" alt="BeaverCheck Score"></a>https://beavercheck.com/badge?url=https%3A%2F%2Fdc.govThis badge auto-updates with your latest scan result.
Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. 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.
12 barrier(s) likely increasing bounce by ~41%.
Page takes 10.7s to load
+12% bounceUsers abandon at ~3s — you're 8.2s over the 2.5s threshold
Fix: Optimize render-blocking resources, preload the hero image, and compress images
Page feels frozen for 915ms
+5% bounceClicks on the primary CTA are ignored while JavaScript runs
Fix: Break up long tasks; defer non-critical JavaScript to post-hydration
Mixed content on HTTPS page
+8% bounceBrowsers block insecure subresources — broken images, missing scripts, warning badge
Fix: Change http:// URLs inside the page to https:// (or protocol-relative)
No HSTS header
+1% bounceReturning visitors are briefly exposed to downgrade attacks on first request
Fix: Set Strict-Transport-Security: max-age=31536000; includeSubDomains
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
Severe layout shift during page load
+6% bounceUsers mis-click when content jumps — converting intent into frustration
Fix: Reserve space for images, ads, and embeds with explicit width/height
2 form field(s) without a label
+4% 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
No Open Graph tags
+2% bounceLinks shared on LinkedIn / Slack / Facebook show bare URLs — referral clicks drop
Fix: Add og:title, og:description, og:image, og:url to the page head
No structured data
+2% bounceNo rich-result eligibility in Google — lower SERP CTR vs competitors with stars and prices
Fix: Add JSON-LD for your page type (Product, Article, FAQPage, LocalBusiness, …)
Content is hard to read
+2% bounceGraduate-level reading difficulty — limits the addressable audience for product or blog pages
Fix: Shorten sentences; replace jargon with plain language; target Flesch ease ≥60
6 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.
€383 investment → €3,882/month returns + EUR 120,500,000 risk avoided
€383
4h · 5 findings
€3,882 /mo
~€46,590 / year
EUR 120,500,000
if kept compliant
€128 — 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.
4.5 developer hours at €85/hr
Based on European Union rates (€85/hr)
Start here for the best return on investment
€10,041,667 / month at risk
~€120,500,004 / year if left unfixed
€120,500,000
+10 more
€0.36 /mo
4848.1 MB/mo × 0.074 EUR/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.
1.17 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
10.68 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
915 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.586
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.09 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.
11.74 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.
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.
| URL | Est Savings |
|---|---|
| dc.gov/sites/all/themes/dc_home_omega/fonts/Roboto-Regular.ttf | 50 ms |
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 | |
|---|---|---|---|
Pay a Ticket div.views-field > div.field-content > a > img | dc.gov/sites/default/files/dc/shared_assets/topic_icon_set/tickets-fines.png | 96.9 KiB | 96.5 KiB |
Basic Business License Maintenance div.views-field > div.field-content > a > img | dc.gov/sites/default/files/training-professional-certification_0.png | 93.0 KiB | 92.6 KiB |
car icon div.views-field > div.field-content > a > img | /sites/default/files/dc/shared_assets/topic_icon_set/tran... | 92.7 KiB | 92.3 KiB |
Best of the Web logo 2013 div > div > a > img | dc.gov/sites/default/files/dc/shared_assets/BOW13_final.jpg | 48.5 KiB | 46.8 KiB |
Stay Safe with a Free Carbon Monoxide Alarm div.bx-clone > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 55.1 KiB | 46.5 KiB |
DC.Gov Home div.branding-data > div.logo-img > a > img | dc.gov/sites/default/files/dc/dcgov_logo.jpg | 44.0 KiB | 41.9 KiB |
Best of the Web logo 2014 div > div > a > img | dc.gov/sites/default/files/dc/shared_assets/BOW14_Winner.png | 26.6 KiB | 23.6 KiB |
Mayor Bowser's 10-Year Progress Report: A Decade of Delivering div > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 17.8 KiB | 9.2 KiB |
DC.Gov Home div.branding-data > div.logo-img > a > img | dc.gov/sites/default/files/dc/dcgovhr.png | 6.9 KiB | 6.3 KiB |
Image of people skating with the words "Fort Dupont Ice Arena" on top div > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 14.2 KiB | 5.6 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.
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
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.
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 |
|---|---|
Featured Services
Pay Tickets
Pay parking and photo enforcement tickets online.… section#section-content > div#zone-content-wrapper > div#zone-content > div#region-content | 0.574 |
Washington, DC
Listen
Featured Services
Pay Tickets
Pay parking and photo enfor… body.html > div#page > section#section-content | 0.011 |
Listen div#readspeaker_button1 > a.rsbtn_play > span.rsbtn_left > span.rsbtn_text | 0.000 |
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.
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| dc.gov/sites/all/themes/dc_home_omega/js/bxslider/jquery.bxslider.js?szii6f | 11.4 KiB | 5.4 KiB |
| dc.gov/misc/ajax.js?v=7.82 | 8.2 KiB | 5.0 KiB |
| dc.gov/misc/drupal.js?szii6f | 6.9 KiB | 4.6 KiB |
| dc.gov/misc/jquery-html-prefilter-3.5.0-backport.js?v=1.8.3 | 4.4 KiB | 3.1 KiB |
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 |
|---|---|---|
| /script/6295/webReader/r/r2889/ReadSpeaker.Styles-Button.... | 39.4 KiB | 36.6 KiB |
| www.google.com/cse/static/element/dc329f57de078f5d/default_v6+en.css | 11.9 KiB | 11.9 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/gtag/js?id=G-XLLLT5975Z | 173.5 KiB | 71.1 KiB |
| /cse/static/element/dc329f57de078f5d/cse_element__en.js?u... | 102.7 KiB | 50.8 KiB |
| cse.google.com/adsense/search/async-ads.js | 43.3 KiB | 31.5 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.
| URL | Total CPU Time | Script Evaluation | Script Parse |
|---|---|---|---|
| /sites/all/modules/contrib/jquery_update/replace/jquery/1... | 1.6 s | 1.5 s | 5.7 ms |
| Unattributable | 463 ms | 8.4 ms | 0.0 ms |
| dc.gov/ | 392 ms | 70 ms | 17 ms |
| www.googletagmanager.com/gtag/js?id=G-XLLLT5975Z | 256 ms | 208 ms | 47 ms |
| platform.twitter.com/widgets.js | 224 ms | 175 ms | 16 ms |
| dc.gov/cdn-cgi/challenge-platform/scripts/jsd/main.js | 177 ms | 168 ms | 2.8 ms |
| js-agent.newrelic.com/nr-rum-1.313.1.min.js | 127 ms | 109 ms | 5.6 ms |
| cse.google.com/cse.js?cx=012222452693656877933:sul8glk5y2y | 84 ms | 77 ms | 1.0 ms |
| cdn1.readspeaker.com/script/6295/webReader/webReader.js?pids=wr | 64 ms | 32 ms | 7.0 ms |
| www.google-analytics.com/analytics.js | 60 ms | 47 ms | 4.1 ms |
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 | 2.5 s |
| Other | 687 ms |
| Style & Layout | 221 ms |
| Script Parsing & Compilation | 176 ms |
| Parse HTML & CSS | 80 ms |
| Rendering | 54 ms |
| Garbage Collection | 33 ms |
Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache
Performance issues directly impact user engagement and conversion rates.
| Failure reason | Failure type |
|---|---|
| An iframe on the page started a navigation that did not complete. | Not actionable |
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.google.com/cse/static/element/dc329f57de078f5d/default_v6+en.css | 12.0 KiB | 3.3 KiB |
| dc.gov/sites/all/themes/dc_home_omega/css/global.css?szii6f | 7.9 KiB | 2.1 KiB |
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 | |
|---|---|
DC.Gov Home div.branding-data > div.logo-img > a > img | dc.gov/sites/default/files/dc/dcgovhr.png |
Best of the Web logo 2014 div > div > a > img | dc.gov/sites/default/files/dc/shared_assets/BOW14_Winner.png |
Best of the Web logo 2013 div > div > a > img | dc.gov/sites/default/files/dc/shared_assets/BOW13_final.jpg |
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.
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 |
|---|
Start div.bx-controls > div.bx-controls-auto > div.bx-controls-auto-item > a.bx-start |
Stop div.bx-controls > div.bx-controls-auto > div.bx-controls-auto-item > a.bx-stop |
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.js html.js |
These items highlight common accessibility best practices.
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.
Performance issues directly impact user engagement and conversion rates.
| Insecure URL | Request Resolution |
|---|---|
| dc.gov/sites/default/files/dc/dcgovhr.png | Automatically upgraded to HTTPS |
Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.
Performance issues directly impact user engagement and conversion rates.
| URL | Aspect Ratio (Displayed) | Aspect Ratio (Actual) | |
|---|---|---|---|
Mayor Bowser's 10-Year Progress Report: A Decade of Delivering div.bx-clone > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 284 x 167 (1.70) | 316 x 167 (1.89) |
Stay Safe with a Free Carbon Monoxide Alarm div > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 284 x 167 (1.70) | 316 x 167 (1.89) |
Image of people skating with the words "Fort Dupont Ice Arena" on top div > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 284 x 167 (1.70) | 316 x 167 (1.89) |
Mayor Bowser's 10-Year Progress Report: A Decade of Delivering div > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 284 x 167 (1.70) | 316 x 167 (1.89) |
Stay Safe with a Free Carbon Monoxide Alarm div.bx-clone > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 284 x 167 (1.70) | 316 x 167 (1.89) |
div.content > div.header-mayor-pic > a > img div.content > div.header-mayor-pic > a > img | dc.gov/sites/default/files/dc/shared_assets/mayor-bowser-logo.jpg | 100 x 131 (0.76) | 106 x 131 (0.81) |
Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.
Performance issues directly impact user engagement and conversion rates.
| URL | Displayed size | Actual size | Expected size | |
|---|---|---|---|---|
Pay a Ticket div.views-field > div.field-content > a > img | dc.gov/sites/default/files/dc/shared_assets/topic_icon_set/tickets-fines.png | 50 x 50 | 50 x 50 | 75 x 75 |
car icon div.views-field > div.field-content > a > img | /sites/default/files/dc/shared_assets/topic_icon_set/tran... | 50 x 50 | 50 x 50 | 75 x 75 |
Basic Business License Maintenance div.views-field > div.field-content > a > img | dc.gov/sites/default/files/training-professional-certification_0.png | 50 x 50 | 50 x 50 | 75 x 75 |
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 |
|---|---|
| Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/. | /sites/all/modules/contrib/jquery_update/replace/jquery/1... line 1, col 85842 |
| SharedStorage | |
| StorageType.persistent is deprecated. Please use standardized navigator.storage instead. | |
| Fledge |
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 |
|---|---|
Failed to load resource: net::ERR_NAME_NOT_RESOLVED | |
Failed to load resource: net::ERR_NAME_NOT_RESOLVED |
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 |
|---|
| Mixed content |
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.
Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.
Performance issues directly impact user engagement and conversion rates.
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 |
|---|---|
| zerowaste.dc.gov/ | Read More |
Format your HTML in a way that enables crawlers to better understand your app’s content.
Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable
Performance issues directly impact user engagement and conversion rates.
| Uncrawlable Link |
|---|
div.region-inner > nav.navigation > div.header_search > a |
X div.content > form#gs2 > div.header_search_form_container > a.close |
Close div#mobile-main-menu-container > ul#mobile-main-menu > div.close-menu > a |
To appear in search results, crawlers need access to your app.
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.
386 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.41 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
144 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.105
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.32 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.
2.60 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.
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.
| URL | Est Savings |
|---|---|
| dc.gov/sites/all/themes/dc_home_omega/fonts/Roboto-Regular.ttf | 35 ms |
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 | |
|---|---|---|---|
Pay a Ticket div.views-field > div.field-content > a > img | dc.gov/sites/default/files/dc/shared_assets/topic_icon_set/tickets-fines.png | 96.9 KiB | 96.5 KiB |
Basic Business License Maintenance div.views-field > div.field-content > a > img | dc.gov/sites/default/files/training-professional-certification_0.png | 93.0 KiB | 92.6 KiB |
car icon div.views-field > div.field-content > a > img | /sites/default/files/dc/shared_assets/topic_icon_set/tran... | 92.7 KiB | 92.3 KiB |
Subscribe div.block-inner > div.content > div#resource-icon-section > div.resource-content-block | dc.gov/sites/default/files/dc/shared_assets/resources_icon_set/subscribe.png | 86.1 KiB | 85.4 KiB |
Data div.block-inner > div.content > div#resource-icon-section > div.resource-content-block | dc.gov/sites/default/files/dc/shared_assets/resources_icon_set/data.png | 83.6 KiB | 82.9 KiB |
RSS div.block-inner > div.content > div#resource-icon-section > div.resource-content-block | dc.gov/sites/default/files/dc/shared_assets/resources_icon_set/rss.png | 81.6 KiB | 80.9 KiB |
Maps div.block-inner > div.content > div#resource-icon-section > div.resource-content-block | dc.gov/sites/default/files/dc/shared_assets/resources_icon_set/maps.png | 80.3 KiB | 79.5 KiB |
Mobile div.block-inner > div.content > div#resource-icon-section > div.resource-content-block | dc.gov/sites/default/files/dc/shared_assets/resources_icon_set/mobile.png | 80.0 KiB | 79.3 KiB |
Webcasts div.block-inner > div.content > div#resource-icon-section > div.resource-content-block | dc.gov/sites/default/files/dc/shared_assets/resources_icon_set/webcasts.png | 79.6 KiB | 78.9 KiB |
Facebook div.block-inner > div.content > div#resource-icon-section > div.resource-content-block | dc.gov/sites/default/files/dc/shared_assets/resources_icon_set/facebook.png | 77.3 KiB | 76.5 KiB |
Best of the Web logo 2013 div > div > a > img | dc.gov/sites/default/files/dc/shared_assets/BOW13_final.jpg | 48.5 KiB | 47.5 KiB |
Stay Safe with a Free Carbon Monoxide Alarm div.bx-clone > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 55.1 KiB | 47.3 KiB |
DC.Gov Home div.branding-data > div.logo-img > a > img | dc.gov/sites/default/files/dc/dcgov_logo.jpg | 44.0 KiB | 42.2 KiB |
div.content > div.header-mayor-pic > a > img div.content > div.header-mayor-pic > a > img | dc.gov/sites/default/files/dc/shared_assets/mayor-bowser-logo.jpg | 36.5 KiB | 34.5 KiB |
Best of the Web logo 2014 div > div > a > img | dc.gov/sites/default/files/dc/shared_assets/BOW14_Winner.png | 26.6 KiB | 25.6 KiB |
body.html > footer#section-footer > div#zone-prefooter-wrapper body.html > footer#section-footer > div#zone-prefooter-wrapper | dc.gov/sites/default/files/dc/shared_assets/main_stars.jpg | 20.5 KiB | 20.3 KiB |
body.html > footer#section-footer > div#zone-prefooter-wrapper body.html > footer#section-footer > div#zone-prefooter-wrapper | dc.gov/sites/default/files/dc/shared_assets/line_bg.jpg | 19.8 KiB | 19.8 KiB |
Mayor Bowser's 10-Year Progress Report: A Decade of Delivering div.bx-clone > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 17.8 KiB | 10.0 KiB |
DC.Gov Home div.branding-data > div.logo-img > a > img | dc.gov/sites/default/files/dc/dcgovhr.png | 6.9 KiB | 6.7 KiB |
Image of people skating with the words "Fort Dupont Ice Arena" on top div.bx-clone > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 14.2 KiB | 6.4 KiB |
Next div.bx-wrapper > div.bx-controls > div.bx-controls-direction > a.bx-next | dc.gov/sites/default/files/bxslider/images/controls2.png | 6.5 KiB | 5.5 KiB |
District News div.dcBar > div.dcFooterList > div.footer-icon > img | dc.gov/sites/default/files/dc/shared_assets/map_icon_footer.png | 5.7 KiB | 5.0 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.
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
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 |
|---|---|
Featured Services
Pay Tickets
Pay parking and photo enforcement tickets online.… div.content > div.panel-display > div#bottom-panel-section > div.panel-panel | 0.063 |
body.html body.html | 0.020 |
Mayor Muriel Bowser div#block-block-102 > div.block-inner > div.content > div.header-mayor-pic | 0.014 |
Stay Safe with a Free Carbon Monoxide Alarm
DC Health’s new Carbon Monoxide Po… div.content > div.panel-display > div#top-panel-section > div.panel-panel | 0.007 |
Residents
Government
Visitors
Education
Jobs
Online Services
Mayor
nav.navigation > div#block-system-main-menu > div.block-inner > div.content | 0.001 |
Listen div#readspeaker_button1 > a.rsbtn_play > span.rsbtn_left > span.rsbtn_text | 0.000 |
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.
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.
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| dc.gov/sites/all/themes/dc_home_omega/js/bxslider/jquery.bxslider.js?szii6f | 11.4 KiB | 5.4 KiB |
| dc.gov/misc/ajax.js?v=7.82 | 8.2 KiB | 5.0 KiB |
| dc.gov/misc/drupal.js?szii6f | 6.9 KiB | 4.6 KiB |
| dc.gov/misc/jquery-html-prefilter-3.5.0-backport.js?v=1.8.3 | 4.4 KiB | 3.1 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/gtag/js?id=G-XLLLT5975Z | 173.5 KiB | 71.1 KiB |
| /cse/static/element/dc329f57de078f5d/cse_element__en.js?u... | 102.7 KiB | 50.9 KiB |
| cse.google.com/adsense/search/async-ads.js | 43.3 KiB | 31.5 KiB |
Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache
Performance issues directly impact user engagement and conversion rates.
| Failure reason | Failure type |
|---|---|
| An iframe on the page started a navigation that did not complete. | Not actionable |
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.google.com/cse/static/element/dc329f57de078f5d/default_v6+en.css | 12.0 KiB | 3.3 KiB |
| dc.gov/sites/all/themes/dc_home_omega/css/global.css?szii6f | 7.8 KiB | 2.1 KiB |
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 |
|---|---|---|
| /script/6295/webReader/r/r2889/ReadSpeaker.Styles-Button.... | 39.4 KiB | 35.9 KiB |
| www.google.com/cse/static/element/dc329f57de078f5d/default_v6+en.css | 11.9 KiB | 10.9 KiB |
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 | |
|---|---|
DC.Gov Home div.branding-data > div.logo-img > a > img | dc.gov/sites/default/files/dc/dcgovhr.png |
Best of the Web logo 2014 div > div > a > img | dc.gov/sites/default/files/dc/shared_assets/BOW14_Winner.png |
div.content > div.header-mayor-pic > a > img div.content > div.header-mayor-pic > a > img | dc.gov/sites/default/files/dc/shared_assets/mayor-bowser-logo.jpg |
Best of the Web logo 2013 div > div > a > img | dc.gov/sites/default/files/dc/shared_assets/BOW13_final.jpg |
District News div.dcBar > div.dcFooterList > div.footer-icon > img | dc.gov/sites/default/files/dc/shared_assets/map_icon_footer.png |
District Initiatives div.dcBar > div.dcFooterList > div.footer-icon > img | dc.gov/sites/default/files/dc/shared_assets/infoCenter_icon_footer.png |
About DC div.dcBar > div.dcFooterList > div.footer-icon > img | dc.gov/sites/default/files/dc/shared_assets/community_icon_footer.png |
Contact Us div.dcBar > div.dcFooterList > div.footer-icon > img | dc.gov/sites/default/files/dc/shared_assets/contact_footer_icon.png |
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.
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 |
|---|
div.content > div.header-mayor-pic > a > img div.content > div.header-mayor-pic > a > img |
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.
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 |
|---|
Mayor Muriel Bowser div.content > div.header-mayor-pic > div.header-mayor-text > a |
Start div.bx-controls > div.bx-controls-auto > div.bx-controls-auto-item > a.bx-start |
Stop div.bx-controls > div.bx-controls-auto > div.bx-controls-auto-item > a.bx-stop |
Mayor's Public Schedule div.dcFooterList > ul#list > li > a |
Citywide News div.dcFooterList > ul#list > li > a |
Citywide Calendar div.dcFooterList > ul#list > li > a |
Subscribe to Receive Emails div.dcFooterList > ul#list > li > a.ext |
Subscribe to Text Alerts div.dcFooterList > ul#list > li > a |
Subscribe to Newsletters div.dcFooterList > ul#list > li > a.ext |
Green DC div.dcFooterList > ul#list2 > li > a |
Age-Friendly DC div.dcFooterList > ul#list2 > li > a |
Sustainable DC div.dcFooterList > ul#list2 > li > a |
Connect DC div.dcFooterList > ul#list2 > li > a |
Great Streets div.dcFooterList > ul#list2 > li > a |
Ready DC div.dcFooterList > ul#list2 > li > a |
Open DC div.dcFooterList > ul#list3 > li > a |
Budget div.dcFooterList > ul#list3 > li > a |
Emancipation div.dcFooterList > ul#list3 > li > a |
Consumer Protection div.dcFooterList > ul#list3 > li > a |
Contracts div.dcFooterList > ul#list3 > li > a |
Property Quest div.dcFooterList > ul#list3 > li > a |
Agency Directory div.dcFooterList > ul#list5 > li > a |
Call 311 div.dcFooterList > ul#list5 > li > a |
Contact the Mayor div.dcFooterList > ul#list5 > li > a |
Contact Agency Directors div.dcFooterList > ul#list5 > li > a |
FOIA Requests div.dcFooterList > ul#list5 > li > a |
Report Website Problems div.dcFooterList > ul#list5 > li > a |
Service Request Center div.dcFooterList > ul#list5 > 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.js html.js |
These items highlight common accessibility best practices.
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.
Performance issues directly impact user engagement and conversion rates.
| Insecure URL | Request Resolution |
|---|---|
| dc.gov/sites/default/files/dc/dcgovhr.png | Automatically upgraded to HTTPS |
Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.
Performance issues directly impact user engagement and conversion rates.
| URL | Aspect Ratio (Displayed) | Aspect Ratio (Actual) | |
|---|---|---|---|
Stay Safe with a Free Carbon Monoxide Alarm div.bx-clone > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 286 x 167 (1.71) | 316 x 167 (1.89) |
Image of people skating with the words "Fort Dupont Ice Arena" on top div.bx-clone > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 286 x 167 (1.71) | 316 x 167 (1.89) |
Mayor Bowser's 10-Year Progress Report: A Decade of Delivering div.bx-clone > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 286 x 167 (1.71) | 316 x 167 (1.89) |
Stay Safe with a Free Carbon Monoxide Alarm div > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 286 x 167 (1.71) | 316 x 167 (1.89) |
Image of people skating with the words "Fort Dupont Ice Arena" on top div > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 286 x 167 (1.71) | 316 x 167 (1.89) |
Mayor Bowser's 10-Year Progress Report: A Decade of Delivering div > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 286 x 167 (1.71) | 316 x 167 (1.89) |
Stay Safe with a Free Carbon Monoxide Alarm div.bx-clone > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 286 x 167 (1.71) | 316 x 167 (1.89) |
Image of people skating with the words "Fort Dupont Ice Arena" on top div.bx-clone > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 286 x 167 (1.71) | 316 x 167 (1.89) |
Mayor Bowser's 10-Year Progress Report: A Decade of Delivering div.bx-clone > div.slide > a > img | /sites/default/files/styles/dc_home_feature/public/dc/sit... | 286 x 167 (1.71) | 316 x 167 (1.89) |
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 |
|---|---|
| Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/. | /sites/all/modules/contrib/jquery_update/replace/jquery/1... line 1, col 85842 |
| SharedStorage | |
| StorageType.persistent is deprecated. Please use standardized navigator.storage instead. | |
| Fledge |
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 |
|---|---|
Failed to load resource: net::ERR_NAME_NOT_RESOLVED | |
Failed to load resource: net::ERR_NAME_NOT_RESOLVED |
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 |
|---|
| Mixed content |
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.
Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.
Performance issues directly impact user engagement and conversion rates.
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 |
|---|---|
| zerowaste.dc.gov/ | Read 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 |
|---|
div.content > div.header-mayor-pic > a > img div.content > div.header-mayor-pic > a > img |
Format your HTML in a way that enables crawlers to better understand your app’s content.
Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable
Performance issues directly impact user engagement and conversion rates.
| Uncrawlable Link |
|---|
div.region-inner > nav.navigation > div.header_search > a |
X div.content > form#gs2 > div.header_search_form_container > a.close |
Close div#mobile-main-menu-container > ul#mobile-main-menu > div.close-menu > a |
To appear in search results, crawlers need access to your app.
Send Feedback