Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
/wdcgov/20103/onsite/generic1774376933592.js	0.0 ms	73.9 KiB
/themes/custom/pup_base/fonts/source-sans-pro/fonts/sourc...	86400.0 s	107.4 KiB
/themes/custom/pup_base/fonts/source-sans-pro/fonts/sourc...	86400.0 s	106.4 KiB
www.irs.gov/pub/image/homepage-tools-TAC-locator.png	420.0 s	36.6 KiB
www.irs.gov/pub/image/vita-recruit-hpsize.jpg	420.0 s	36.3 KiB
www.irs.gov/themes/custom/pup_base/fonts/fontawesome-webfont.woff2?v=4.7.0	86400.0 s	75.7 KiB
www.irs.gov/pub/Mother-father-daughter-using-laptop-celebrating-resize.jpg	420.0 s	30.7 KiB
www.irs.gov/pub/image/obba-7.jpg	420.0 s	29.6 KiB
/pub/js/js_uQ3AXRedwNs815Y7AO31iI36vlbr_6NIRZCoLu8BbEY.js...	86400.0 s	67.4 KiB
www.irs.gov/pub/image/scamhomepage.jpg	420.0 s	25.2 KiB
www.irs.gov/pub/image/hp-parents-baby.jpg	420.0 s	24.8 KiB
www.irs.gov/pub/image/DUT-homepage-tools.jpg	420.0 s	23.1 KiB
/pub/js/js_w8fM3HiCn-P-n7TMi9seyjEJrCmAhX-z8-63A6hCyVU.js...	86400.0 s	52.1 KiB
/pub/css/css_KrI8Zfe1iQpJiHfe5RVnBQWjfoKTSk8rjfLDq-3inA0....	86400.0 s	51.2 KiB
www.irs.gov/pub/homepage-tools-free-file-laptop.png	420.0 s	20.6 KiB
www.irs.gov/pub/image/get-a-jump-on-your-taxes.jpg	420.0 s	19.9 KiB
www.irs.gov/pub/image/1205-Where%27sMyRefund_Desktop-250-208.png	420.0 s	18.9 KiB
www.irs.gov/pub/image/OLA-desktop-250-208.png	420.0 s	17.7 KiB
www.irs.gov/static_assets/js/libs/jquery.min.js	86400.0 s	30.0 KiB
/pub/css/css_EbWGjClhsStXbsvwOq9iT6yGxHCg86ApUzr4bYwsoHk....	86400.0 s	25.5 KiB
dap.digitalgov.gov/Universal-Federated-Analytics-Min.js?agency=IRS	0.0 ms	9.4 KiB
dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js	0.0 ms	4.5 KiB
/pub/css/css_NVvP9_xN__Mg2RByu9OI--5ZTpMmH8LC8b-qER6dfbU....	86400.0 s	9.1 KiB
www.irs.gov/libraries/accesible-slick-carousel/ajax-loader.gif	86400.0 s	4.3 KiB
www.irs.gov/themes/custom/pup_base/IRS-Logo.svg	86400.0 s	2.4 KiB
www.irs.gov/themes/custom/pup_irs/images/logo-print.svg	86400.0 s	2.3 KiB
static.addtoany.com/menu/page.js	86400.0 s	2.2 KiB
/pub/css/css_juMqqhZegJupGBzrmBqja3vIEefawLIZPVtHLZofWkA....	86400.0 s	2.0 KiB
www.irs.gov/modules/contrib/google_tag/js/gtag.js?tcjb7k	86400.0 s	764 B
www.irs.gov/modules/contrib/google_tag/js/gtm.js?tcjb7k	86400.0 s	719 B
www.irs.gov/themes/custom/pup_irs/images/circle-check.svg	86400.0 s	663 B
www.irs.gov/themes/custom/pup_base/images/icon-https.svg	86400.0 s	628 B
www.irs.gov/themes/custom/pup_base/images/icon-dot-gov.svg	86400.0 s	608 B
/pub/js/js_KDJrWUHMfAKem9afv9zeDu0oqcEh3pcAadDZ4AT7VL4.js...	86400.0 s	550 B
www.irs.gov/themes/custom/pup_base/images/lock.svg	86400.0 s	521 B
www.irs.gov/themes/custom/pup_base/images/us_flag_small.png	86400.0 s	519 B
www.irs.gov/themes/custom/pup_base/images/expand_more.svg	86400.0 s	385 B

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]

items: [map[node:map[type:text value:Total] score:0.356689] map[node:map[boundingRect:map[bottom:3524 height:3316 left:15 right:397 top:208 width:382] lhId:page-1-ARTICLE nodeLabel:Do more with an IRS account Access your tax information with an Individual, Bus… path:1,HTML,1,BODY,3,DIV,2,DIV,0,DIV,0,DIV,0,SECTION,0,DIV,2,ARTICLE selector:div.row > section.col-sm-12 > div.region > article#main-content snippet:<article about="/node/58476" class="pup-home-page is-promoted full clearfix" id="main-content"> type:node] score:0.321424] map[node:map[boundingRect:map[bottom:516 height:108 left:15 right:397 top:408 width:382] lhId:page-2-DIV nodeLabel:Access your tax information with an Individual, Business or Tax Pro Account path:1,HTML,1,BODY,3,DIV,2,DIV,0,DIV,0,DIV,0,SECTION,0,DIV,2,ARTICLE,0,DIV,0,DIV,0,DIV,1,DIV selector:div.field > div.block-type--hero-narrow > div.wrapper > div.field snippet:<div class="field field--name-field-subheading field--type-text field--label-hidden fi…"> type:node] score:0.035265 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://www.irs.gov/themes/custom/pup_base/fonts/source-sans-pro/fonts/sourcesans3-regular.woff2]] map[cause:Web font extra:map[type:url value:https://www.irs.gov/themes/custom/pup_base/fonts/source-sans-pro/fonts/sourcesans3-bold.woff2]]] type:subitems]]]

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
www.irs.gov/themes/custom/pup_base/fonts/fontawesome-webfont.woff2?v=4.7.0	695 ms
/themes/custom/pup_base/fonts/source-sans-pro/fonts/sourc...	675 ms
/themes/custom/pup_base/fonts/source-sans-pro/fonts/sourc...	620 ms

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:43.501 source:map[column:156 line:19 type:source-location url:https://www.irs.gov/pub/js/js_w8fM3HiCn-P-n7TMi9seyjEJrCmAhX-z8-63A6hCyVU.js?scope=footer&delta=0&language=en&theme=pup_irs&include=eJx1kWGSwyAIhS9k4pEcVGrYGnEQu-3tN2k3abLT_SO876GCQggskbi4GUtvFs7afVNMqAZiVIbysFsyXoSLGs-sTQWq3TNXBR0VOpqVK99QDkSZs1I1YeKGxb7C6PGykSi9Qh5fykRQyPBAsR4nuBFLM3jXTOW6Vf5Kk5hTRqeQbFqWv3qEL7if4Wxqr26ZHFsjT5l0nXOm4tYuPcjT99DQpswe8tBIcbggaBdsTzdcMZKyuJp7onJ4yM_2J_isJGn7LUGo6hvPoGEaJqQ06RtigmH9qwMp_dzcSpc4TDxjhYRDAOHeMO9uQ5Dl7H3XSzuo5KArB55rRkX7D_8Bj-nlkA urlProvider:network]]]

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:35.125 source:map[type:text value:[unattributed]]] map[reflowTime:0.169 source:map[column:2137 line:5 type:source-location url:https://www.irs.gov/pub/js/js_uQ3AXRedwNs815Y7AO31iI36vlbr_6NIRZCoLu8BbEY.js?scope=footer&delta=2&language=en&theme=pup_irs&include=eJx1kWGSwyAIhS9k4pEcVGrYGnEQu-3tN2k3abLT_SO876GCQggskbi4GUtvFs7afVNMqAZiVIbysFsyXoSLGs-sTQWq3TNXBR0VOpqVK99QDkSZs1I1YeKGxb7C6PGykSi9Qh5fykRQyPBAsR4nuBFLM3jXTOW6Vf5Kk5hTRqeQbFqWv3qEL7if4Wxqr26ZHFsjT5l0nXOm4tYuPcjT99DQpswe8tBIcbggaBdsTzdcMZKyuJp7onJ4yM_2J_isJGn7LUGo6hvPoGEaJqQ06RtigmH9qwMp_dzcSpc4TDxjhYRDAOHeMO9uQ5Dl7H3XSzuo5KArB55rRkX7D_8Bj-nlkA urlProvider:network]] map[reflowTime:0.987 source:map[column:50335 line:2 type:source-location url:https://www.irs.gov/pub/js/js_w8fM3HiCn-P-n7TMi9seyjEJrCmAhX-z8-63A6hCyVU.js?scope=footer&delta=0&language=en&theme=pup_irs&include=eJx1kWGSwyAIhS9k4pEcVGrYGnEQu-3tN2k3abLT_SO876GCQggskbi4GUtvFs7afVNMqAZiVIbysFsyXoSLGs-sTQWq3TNXBR0VOpqVK99QDkSZs1I1YeKGxb7C6PGykSi9Qh5fykRQyPBAsR4nuBFLM3jXTOW6Vf5Kk5hTRqeQbFqWv3qEL7if4Wxqr26ZHFsjT5l0nXOm4tYuPcjT99DQpswe8tBIcbggaBdsTzdcMZKyuJp7onJ4yM_2J_isJGn7LUGo6hvPoGEaJqQ06RtigmH9qwMp_dzcSpc4TDxjhYRDAOHeMO9uQ5Dl7H3XSzuo5KArB55rRkX7D_8Bj-nlkA urlProvider:network]] map[reflowTime:0.498 source:map[column:50393 line:2 type:source-location url:https://www.irs.gov/pub/js/js_w8fM3HiCn-P-n7TMi9seyjEJrCmAhX-z8-63A6hCyVU.js?scope=footer&delta=0&language=en&theme=pup_irs&include=eJx1kWGSwyAIhS9k4pEcVGrYGnEQu-3tN2k3abLT_SO876GCQggskbi4GUtvFs7afVNMqAZiVIbysFsyXoSLGs-sTQWq3TNXBR0VOpqVK99QDkSZs1I1YeKGxb7C6PGykSi9Qh5fykRQyPBAsR4nuBFLM3jXTOW6Vf5Kk5hTRqeQbFqWv3qEL7if4Wxqr26ZHFsjT5l0nXOm4tYuPcjT99DQpswe8tBIcbggaBdsTzdcMZKyuJp7onJ4yM_2J_isJGn7LUGo6hvPoGEaJqQ06RtigmH9qwMp_dzcSpc4TDxjhYRDAOHeMO9uQ5Dl7H3XSzuo5KArB55rRkX7D_8Bj-nlkA urlProvider:network]] map[reflowTime:0.456 source:map[column:50457 line:2 type:source-location url:https://www.irs.gov/pub/js/js_w8fM3HiCn-P-n7TMi9seyjEJrCmAhX-z8-63A6hCyVU.js?scope=footer&delta=0&language=en&theme=pup_irs&include=eJx1kWGSwyAIhS9k4pEcVGrYGnEQu-3tN2k3abLT_SO876GCQggskbi4GUtvFs7afVNMqAZiVIbysFsyXoSLGs-sTQWq3TNXBR0VOpqVK99QDkSZs1I1YeKGxb7C6PGykSi9Qh5fykRQyPBAsR4nuBFLM3jXTOW6Vf5Kk5hTRqeQbFqWv3qEL7if4Wxqr26ZHFsjT5l0nXOm4tYuPcjT99DQpswe8tBIcbggaBdsTzdcMZKyuJp7onJ4yM_2J_isJGn7LUGo6hvPoGEaJqQ06RtigmH9qwMp_dzcSpc4TDxjhYRDAOHeMO9uQ5Dl7H3XSzuo5KArB55rRkX7D_8Bj-nlkA urlProvider:network]] map[reflowTime:25.665 source:map[column:49615 line:2 type:source-location url:https://www.irs.gov/pub/js/js_w8fM3HiCn-P-n7TMi9seyjEJrCmAhX-z8-63A6hCyVU.js?scope=footer&delta=0&language=en&theme=pup_irs&include=eJx1kWGSwyAIhS9k4pEcVGrYGnEQu-3tN2k3abLT_SO876GCQggskbi4GUtvFs7afVNMqAZiVIbysFsyXoSLGs-sTQWq3TNXBR0VOpqVK99QDkSZs1I1YeKGxb7C6PGykSi9Qh5fykRQyPBAsR4nuBFLM3jXTOW6Vf5Kk5hTRqeQbFqWv3qEL7if4Wxqr26ZHFsjT5l0nXOm4tYuPcjT99DQpswe8tBIcbggaBdsTzdcMZKyuJp7onJ4yM_2J_isJGn7LUGo6hvPoGEaJqQ06RtigmH9qwMp_dzcSpc4TDxjhYRDAOHeMO9uQ5Dl7H3XSzuo5KArB55rRkX7D_8Bj-nlkA urlProvider:network]] map[reflowTime:3.925 source:map[column:1408 line:42 type:source-location url:https://www.irs.gov/pub/js/js_uQ3AXRedwNs815Y7AO31iI36vlbr_6NIRZCoLu8BbEY.js?scope=footer&delta=2&language=en&theme=pup_irs&include=eJx1kWGSwyAIhS9k4pEcVGrYGnEQu-3tN2k3abLT_SO876GCQggskbi4GUtvFs7afVNMqAZiVIbysFsyXoSLGs-sTQWq3TNXBR0VOpqVK99QDkSZs1I1YeKGxb7C6PGykSi9Qh5fykRQyPBAsR4nuBFLM3jXTOW6Vf5Kk5hTRqeQbFqWv3qEL7if4Wxqr26ZHFsjT5l0nXOm4tYuPcjT99DQpswe8tBIcbggaBdsTzdcMZKyuJp7onJ4yM_2J_isJGn7LUGo6hvPoGEaJqQ06RtigmH9qwMp_dzcSpc4TDxjhYRDAOHeMO9uQ5Dl7H3XSzuo5KArB55rRkX7D_8Bj-nlkA urlProvider:network]] map[reflowTime:4.807 source:map[column:49637 line:2 type:source-location url:https://www.irs.gov/pub/js/js_w8fM3HiCn-P-n7TMi9seyjEJrCmAhX-z8-63A6hCyVU.js?scope=footer&delta=0&language=en&theme=pup_irs&include=eJx1kWGSwyAIhS9k4pEcVGrYGnEQu-3tN2k3abLT_SO876GCQggskbi4GUtvFs7afVNMqAZiVIbysFsyXoSLGs-sTQWq3TNXBR0VOpqVK99QDkSZs1I1YeKGxb7C6PGykSi9Qh5fykRQyPBAsR4nuBFLM3jXTOW6Vf5Kk5hTRqeQbFqWv3qEL7if4Wxqr26ZHFsjT5l0nXOm4tYuPcjT99DQpswe8tBIcbggaBdsTzdcMZKyuJp7onJ4yM_2J_isJGn7LUGo6hvPoGEaJqQ06RtigmH9qwMp_dzcSpc4TDxjhYRDAOHeMO9uQ5Dl7H3XSzuo5KArB55rRkX7D_8Bj-nlkA urlProvider:network]] map[reflowTime:10.443 source:map[column:51395 line:2 type:source-location url:https://www.irs.gov/pub/js/js_w8fM3HiCn-P-n7TMi9seyjEJrCmAhX-z8-63A6hCyVU.js?scope=footer&delta=0&language=en&theme=pup_irs&include=eJx1kWGSwyAIhS9k4pEcVGrYGnEQu-3tN2k3abLT_SO876GCQggskbi4GUtvFs7afVNMqAZiVIbysFsyXoSLGs-sTQWq3TNXBR0VOpqVK99QDkSZs1I1YeKGxb7C6PGykSi9Qh5fykRQyPBAsR4nuBFLM3jXTOW6Vf5Kk5hTRqeQbFqWv3qEL7if4Wxqr26ZHFsjT5l0nXOm4tYuPcjT99DQpswe8tBIcbggaBdsTzdcMZKyuJp7onJ4yM_2J_isJGn7LUGo6hvPoGEaJqQ06RtigmH9qwMp_dzcSpc4TDxjhYRDAOHeMO9uQ5Dl7H3XSzuo5KArB55rRkX7D_8Bj-nlkA urlProvider:network]] map[reflowTime:0.497 source:map[column:52814 line:2 type:source-location url:https://www.irs.gov/pub/js/js_w8fM3HiCn-P-n7TMi9seyjEJrCmAhX-z8-63A6hCyVU.js?scope=footer&delta=0&language=en&theme=pup_irs&include=eJx1kWGSwyAIhS9k4pEcVGrYGnEQu-3tN2k3abLT_SO876GCQggskbi4GUtvFs7afVNMqAZiVIbysFsyXoSLGs-sTQWq3TNXBR0VOpqVK99QDkSZs1I1YeKGxb7C6PGykSi9Qh5fykRQyPBAsR4nuBFLM3jXTOW6Vf5Kk5hTRqeQbFqWv3qEL7if4Wxqr26ZHFsjT5l0nXOm4tYuPcjT99DQpswe8tBIcbggaBdsTzdcMZKyuJp7onJ4yM_2J_isJGn7LUGo6hvPoGEaJqQ06RtigmH9qwMp_dzcSpc4TDxjhYRDAOHeMO9uQ5Dl7H3XSzuo5KArB55rRkX7D_8Bj-nlkA urlProvider:network]] map[reflowTime:0.21 source:map[column:79427 line:2 type:source-location url:https://www.irs.gov/pub/js/js_w8fM3HiCn-P-n7TMi9seyjEJrCmAhX-z8-63A6hCyVU.js?scope=footer&delta=0&language=en&theme=pup_irs&include=eJx1kWGSwyAIhS9k4pEcVGrYGnEQu-3tN2k3abLT_SO876GCQggskbi4GUtvFs7afVNMqAZiVIbysFsyXoSLGs-sTQWq3TNXBR0VOpqVK99QDkSZs1I1YeKGxb7C6PGykSi9Qh5fykRQyPBAsR4nuBFLM3jXTOW6Vf5Kk5hTRqeQbFqWv3qEL7if4Wxqr26ZHFsjT5l0nXOm4tYuPcjT99DQpswe8tBIcbggaBdsTzdcMZKyuJp7onJ4yM_2J_isJGn7LUGo6hvPoGEaJqQ06RtigmH9qwMp_dzcSpc4TDxjhYRDAOHeMO9uQ5Dl7H3XSzuo5KArB55rRkX7D_8Bj-nlkA urlProvider:network]] map[reflowTime:0.738 source:map[column:257 line:34 type:source-location url:https://www.irs.gov/pub/js/js_uQ3AXRedwNs815Y7AO31iI36vlbr_6NIRZCoLu8BbEY.js?scope=footer&delta=2&language=en&theme=pup_irs&include=eJx1kWGSwyAIhS9k4pEcVGrYGnEQu-3tN2k3abLT_SO876GCQggskbi4GUtvFs7afVNMqAZiVIbysFsyXoSLGs-sTQWq3TNXBR0VOpqVK99QDkSZs1I1YeKGxb7C6PGykSi9Qh5fykRQyPBAsR4nuBFLM3jXTOW6Vf5Kk5hTRqeQbFqWv3qEL7if4Wxqr26ZHFsjT5l0nXOm4tYuPcjT99DQpswe8tBIcbggaBdsTzdcMZKyuJp7onJ4yM_2J_isJGn7LUGo6hvPoGEaJqQ06RtigmH9qwMp_dzcSpc4TDxjhYRDAOHeMO9uQ5Dl7H3XSzuo5KArB55rRkX7D_8Bj-nlkA urlProvider:network]] map[reflowTime:1.226 source:map[column:83946 line:2 type:source-location url:https://www.irs.gov/pub/js/js_w8fM3HiCn-P-n7TMi9seyjEJrCmAhX-z8-63A6hCyVU.js?scope=footer&delta=0&language=en&theme=pup_irs&include=eJx1kWGSwyAIhS9k4pEcVGrYGnEQu-3tN2k3abLT_SO876GCQggskbi4GUtvFs7afVNMqAZiVIbysFsyXoSLGs-sTQWq3TNXBR0VOpqVK99QDkSZs1I1YeKGxb7C6PGykSi9Qh5fykRQyPBAsR4nuBFLM3jXTOW6Vf5Kk5hTRqeQbFqWv3qEL7if4Wxqr26ZHFsjT5l0nXOm4tYuPcjT99DQpswe8tBIcbggaBdsTzdcMZKyuJp7onJ4yM_2J_isJGn7LUGo6hvPoGEaJqQ06RtigmH9qwMp_dzcSpc4TDxjhYRDAOHeMO9uQ5Dl7H3XSzuo5KArB55rRkX7D_8Bj-nlkA urlProvider:network]]]

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.

title: Preconnected origins

value: no origins were preconnected

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
www.irs.gov/modules/contrib/google_tag/js/gtm.js?tcjb7k	719 B
www.irs.gov/modules/contrib/google_tag/js/gtag.js?tcjb7k	764 B
/pub/js/js_KDJrWUHMfAKem9afv9zeDu0oqcEh3pcAadDZ4AT7VL4.js...	550 B
/pub/css/css_EbWGjClhsStXbsvwOq9iT6yGxHCg86ApUzr4bYwsoHk....	25.5 KiB
/pub/css/css_KrI8Zfe1iQpJiHfe5RVnBQWjfoKTSk8rjfLDq-3inA0....	51.2 KiB	717 ms
/pub/css/css_NVvP9_xN__Mg2RByu9OI--5ZTpMmH8LC8b-qER6dfbU....	9.1 KiB

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
div > a.pup-slick-slide > div.paragraph > img `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/vita-recruit-hpsize.jpg	36.0 KiB	27.5 KiB
div > a.pup-slick-slide > div.paragraph > img `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/Mother-father-daughter-using-laptop-celebrating-resize.jpg	30.4 KiB	21.9 KiB
The One, Big, Beautiful Bill has a significant effect on federal taxes, credits… `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/obba-7.jpg	29.3 KiB	20.9 KiB
Find the latest information on trending scams and schemes `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/scamhomepage.jpg	24.8 KiB	16.3 KiB
Working Families Tax Cuts permits Trump Accounts to be established for American… `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/hp-parents-baby.jpg	24.5 KiB	16.0 KiB
A woman standing and man sitting at a desk reviewing content on a laptop in a h… `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/get-a-jump-on-your-taxes.jpg	19.6 KiB	11.1 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Element	Layout shift score
Do more with an IRS account Access your tax information with an Individual, Bus… `div.row > section.col-sm-12 > div.region > article#main-content`	0.321
Access your tax information with an Individual, Business or Tax Pro Account `div.field > div.block-type--hero-narrow > div.wrapper > div.field`	0.035

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 900 ms 66.7 KiB

URL	Transfer Size	Est Savings
/pub/css/css_KrI8Zfe1iQpJiHfe5RVnBQWjfoKTSk8rjfLDq-3inA0....	50.9 KiB	44.6 KiB
/pub/css/css_EbWGjClhsStXbsvwOq9iT6yGxHCg86ApUzr4bYwsoHk....	25.3 KiB	22.1 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.9 s 441.1 KiB

URL	Transfer Size	Est Savings
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e6460	146.3 KiB	105.1 KiB
www.googletagmanager.com/gtag/js?id=G-ZY6FM95CS5&cx=c&gtm=4e6460	152.1 KiB	62.0 KiB
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L	146.3 KiB	61.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-KV978ZL	137.2 KiB	58.0 KiB
/pub/js/js_uQ3AXRedwNs815Y7AO31iI36vlbr_6NIRZCoLu8BbEY.js...	67.1 KiB	47.8 KiB
/wdcgov/20103/onsite/generic1774376933592.js	73.5 KiB	43.2 KiB
/pub/js/js_w8fM3HiCn-P-n7TMi9seyjEJrCmAhX-z8-63A6hCyVU.js...	51.9 KiB	21.7 KiB
static.addtoany.com/menu/modules/core.ydpp7jcu.js	25.7 KiB	21.0 KiB
www.irs.gov/static_assets/js/libs/jquery.min.js	29.8 KiB	20.5 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
/pub/js/js_w8fM3HiCn-P-n7TMi9seyjEJrCmAhX-z8-63A6hCyVU.js...	943 ms	486 ms	22 ms
www.irs.gov/	464 ms	9.3 ms	2.6 ms
www.googletagmanager.com/gtm.js?id=GTM-KV978ZL	440 ms	357 ms	58 ms
Unattributable	400 ms	15 ms	0.0 ms
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L	333 ms	262 ms	57 ms
www.googletagmanager.com/gtag/js?id=G-ZY6FM95CS5&cx=c&gtm=4e6460	293 ms	217 ms	65 ms
/pub/js/js_uQ3AXRedwNs815Y7AO31iI36vlbr_6NIRZCoLu8BbEY.js...	168 ms	95 ms	41 ms
/wdcgov/20103/onsite/generic1774376933592.js	106 ms	58 ms	47 ms
www.googletagmanager.com/gtag/js?id=G-CSLL4ZEK4L&cx=c&gtm=4e6460	101 ms	34 ms	66 ms
dap.digitalgov.gov/web-vitals/dist/web-vitals.attribution.iife.js	84 ms	80 ms	2.0 ms
www.irs.gov/static_assets/js/libs/jquery.min.js	55 ms	39 ms	12 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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Script Evaluation	1.7 s
Other	631 ms
Style & Layout	570 ms
Script Parsing & Compilation	384 ms
Parse HTML & CSS	129 ms
Rendering	72 ms
Garbage Collection	48 ms

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
div > a.pup-slick-slide > div.paragraph > img `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/Mother-father-daughter-using-laptop-celebrating-resize.jpg
The One, Big, Beautiful Bill has a significant effect on federal taxes, credits… `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/obba-7.jpg
div > a.pup-slick-slide > div.paragraph > img `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/vita-recruit-hpsize.jpg
Find the latest information on trending scams and schemes `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/scamhomepage.jpg
Working Families Tax Cuts permits Trump Accounts to be established for American… `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/hp-parents-baby.jpg
A woman standing and man sitting at a desk reviewing content on a laptop in a h… `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/get-a-jump-on-your-taxes.jpg
div > a.pup-slick-slide > div.paragraph > img `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/Mother-father-daughter-using-laptop-celebrating-resize.jpg
The One, Big, Beautiful Bill has a significant effect on federal taxes, credits… `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/obba-7.jpg
div > a.pup-slick-slide > div.paragraph > img `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/vita-recruit-hpsize.jpg
Find the latest information on trending scams and schemes `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/scamhomepage.jpg
Working Families Tax Cuts permits Trump Accounts to be established for American… `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/hp-parents-baby.jpg
A woman standing and man sitting at a desk reviewing content on a laptop in a h… `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/get-a-jump-on-your-taxes.jpg
div > a.pup-slick-slide > div.paragraph > img `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/Mother-father-daughter-using-laptop-celebrating-resize.jpg
The One, Big, Beautiful Bill has a significant effect on federal taxes, credits… `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/obba-7.jpg
div > a.pup-slick-slide > div.paragraph > img `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/vita-recruit-hpsize.jpg
Find the latest information on trending scams and schemes `div > a.pup-slick-slide > div.paragraph > img`	www.irs.gov/pub/image/scamhomepage.jpg
Home `div.col-xs-2 > div.region > a.logo > img`	www.irs.gov/themes/custom/pup_base/IRS-Logo.svg

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Document request latency

●Optimize DOM size

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Avoids enormous network payloads Total size was 1,544 KiB

●User Timing marks and measures 14 user timings

●Avoid long main-thread tasks 14 long tasks found

●Avoid non-composited animations 28 animated elements found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 210 ms

●Server Backend Latencies 340 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

●Initial server response time was short Root document took 220 ms

○INP breakdown

○LCP request discovery

100

Accessibility

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.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-*]` attributes match their roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●ARIA attributes are used as specified for the element's role

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●Links have a discernible name

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●No element has a `[tabindex]` value greater than 0

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Uses ARIA roles only on compatible elements

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements have accessible names

○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<frame>` or `<iframe>` elements have a title

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○Form elements have associated labels

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`[lang]` attributes have a valid value

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Image elements do not have `[alt]` attributes that are redundant text.

○Identical links have the same purpose.

○Elements with visible text labels have matching accessible names.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

100

Best Practices

●Uses HTTPS

●Avoids deprecated APIs

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

100

SEO

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.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`