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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

39

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.

RequestCache TTLTransfer Size
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
js.hs-analytics.net/analytics/1776803700000/8382967.js300.0 s45.6 KiB
/signals/config/1292569484461212?v=2.9.303&r=stable&domai...1200.0 s44.6 KiB
js.usemessages.com/conversations-embed.js600.0 s33.0 KiB
js.hubspot.com/web-interactives-embed.js600.0 s28.0 KiB
cdn.bc0a.com/autopilot/f00000000283318/autopilot_sdk.js360.0 s24.3 KiB
js.hs-banner.com/v2/8382967/banner.js300.0 s24.0 KiB
f.vimeocdn.com/p/4.46.41/js/player.module.js1209600.0 s210.2 KiB
/signals/config/207343600390065?v=2.9.303&r=stable&domain...1200.0 s18.8 KiB
/sites/home/files/styles/max_width_1440px/public/2026-03/...1209600.0 s113.0 KiB
/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcP...1209600.0 s112.8 KiB
/sites/home/files/styles/3_2_lg/public/2026-04/20260217-N...1209600.0 s94.5 KiB
f.vimeocdn.com/p/4.46.41/js/vendor.module.js1209600.0 s93.5 KiB
player.vimeo.com/api/player.js1800.0 s9.0 KiB
/sites/home/files/styles/3_2_lg/public/2026-04/Abundance_...1209600.0 s78.0 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
siteimproveanalytics.com/js/siteanalyze_66356409.js86400.0 s17.7 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/t...1209600.0 s57.9 KiB
/sites/home/files/styles/cta_2x_820x520/public/2024-09/20...1209600.0 s54.8 KiB
www.gstatic.com/eureka/clank/147/cast_sender.js86400.0 s13.4 KiB
/sites/home/files/styles/instagram_thumbnail/public/2025-...1209600.0 s53.2 KiB
/sites/home/files/styles/instagram_thumbnail/public/2025-...1209600.0 s52.5 KiB
/themes/custom/darthome_2021/src/fonts/dartmouth-ruzika/D...1209600.0 s51.4 KiB
/sites/home/files/styles/max_width_720px/public/2021-06/r...1209600.0 s51.1 KiB
/themes/custom/darthome_2021/src/fonts/dartmouth-ruzika/D...1209600.0 s50.2 KiB
/themes/custom/darthome_2021/src/fonts/dartmouth-ruzika/D...1209600.0 s50.1 KiB
/sites/home/files/styles/3_2_lg/public/2026-04/20260219-L...1209600.0 s48.4 KiB
/themes/custom/darthome_2021/src/fonts/dartmouth-ruzika/D...1209600.0 s48.4 KiB
/sites/home/files/css/css_y_100t49BBZk-fo9Qccymx5GB8ti54p...1209600.0 s47.7 KiB
/sites/home/files/styles/instagram_thumbnail/public/2025-...1209600.0 s47.4 KiB
/sites/home/files/styles/cta_2x_820x520/public/2024-09/20...1209600.0 s46.4 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/g...1209600.0 s46.3 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/p...1209600.0 s44.2 KiB
/sites/home/files/styles/instagram_thumbnail/public/2026-...1209600.0 s43.8 KiB
/sites/home/files/styles/instagram_thumbnail/public/2026-...1209600.0 s43.8 KiB
/sites/home/files/styles/cta_2x_820x520/public/2023-09/Ge...1209600.0 s43.8 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/p...1209600.0 s41.0 KiB
/sites/home/files/styles/instagram_thumbnail/public/2026-...1209600.0 s37.9 KiB
/themes/custom/darthome_2021/src/fonts/national/National2...1209600.0 s37.3 KiB
/themes/custom/darthome_2021/src/fonts/national/National2...1209600.0 s37.3 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/l...1209600.0 s37.3 KiB
js.hsadspixel.net/pixels.js600.0 s3.9 KiB
/themes/custom/darthome_2021/src/fonts/national/National2...1209600.0 s35.9 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/t...1209600.0 s35.7 KiB
/sites/home/files/styles/max_width_720px/public/2021-06/c...1209600.0 s35.2 KiB
/themes/custom/darthome_2021/src/fonts/national/National2...1209600.0 s34.5 KiB
/sites/home/files/styles/max_width_720px/public/news/imag...1209600.0 s34.4 KiB
/sites/home/files/styles/max_width_720px/public/2021-06/f...1209600.0 s33.8 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/c...1209600.0 s33.5 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/t...1209600.0 s33.2 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/t...1209600.0 s31.7 KiB
/sites/home/files/styles/instagram_thumbnail/public/2026-...1209600.0 s30.3 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/t...1209600.0 s28.7 KiB
/sites/home/files/styles/max_width_720px/public/2021-06/h...1209600.0 s28.1 KiB
/sites/home/files/styles/max_width_1440px/public/2025-09/...1209600.0 s26.9 KiB
/sites/home/files/styles/max_width_720px/public/news/imag...1209600.0 s25.7 KiB
/sites/home/files/styles/max_width_720px/public/2021-06/g...1209600.0 s25.0 KiB
/sites/home/files/styles/cta_2x_820x520/public/2024-09/La...1209600.0 s24.7 KiB
f.vimeocdn.com/p/4.46.41/css/player.css1209600.0 s23.9 KiB
/sites/home/files/styles/instagram_thumbnail/public/2025-...1209600.0 s23.4 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/p...1209600.0 s23.0 KiB
/sites/home/files/styles/max_width_720px/public/2021-06/C...1209600.0 s22.6 KiB
/sites/home/files/styles/instagram_thumbnail/public/2026-...1209600.0 s21.3 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/s...1209600.0 s20.1 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/t...1209600.0 s19.0 KiB
/sites/home/files/styles/max_width_720px/public/2021-06/a...1209600.0 s18.6 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/t...1209600.0 s17.9 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/n...1209600.0 s17.8 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/t...1209600.0 s16.7 KiB
/sites/home/files/styles/max_width_720px/public/2021-05/b...1209600.0 s15.3 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/t...1209600.0 s14.2 KiB
/sites/home/files/styles/max_width_720px/public/2021-06/q...1209600.0 s13.8 KiB
/sites/home/files/styles/instagram_thumbnail/public/2026-...1209600.0 s12.4 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/n...1209600.0 s11.5 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/e...1209600.0 s11.5 KiB
js.hs-scripts.com/8382967.js90.0 s1.1 KiB
/sites/home/files/styles/max_width_720px/public/2021-07/r...1209600.0 s10.5 KiB
/sites/home/files/styles/max_width_720px/public/news/wysi...1209600.0 s9.2 KiB
/sites/home/files/js/js_ihZ_RC6byttxafpvZ60R4gczzIOesacI4...1209600.0 s9.1 KiB
/sites/home/files/styles/max_width_720px/public/2024-09/f...1209600.0 s7.8 KiB
/collect?v=2&fmt=js&pid=8470186&time=1776803874994&url=ht...0.0 ms695 B
/sites/home/files/styles/max_width_720px/public/2021-07/t...1209600.0 s5.9 KiB
/sites/home/files/css/css_woyE5Qoqoczq6ava0GANAGykvADIgb3...1209600.0 s4.5 KiB
home.dartmouth.edu/modules/contrib/google_tag/js/gtag.js?tduwey1209600.0 s1.2 KiB
home.dartmouth.edu/modules/contrib/google_tag/js/gtm.js?tduwey1209600.0 s1.1 KiB
home.dartmouth.edu/themes/custom/darthome_2021/dist/images/svg/link-external.svg1209600.0 s879 B
/sites/home/files/js/js_Ed8iMdh7Z8LyUrusvVNded6YTT5rneJSW...1209600.0 s851 B
home.dartmouth.edu/themes/custom/darthome_2021/dist/images/svg/play--alt.svg1209600.0 s840 B
home.dartmouth.edu/themes/custom/darthome_2021/dist/images/svg/arrow.svg1209600.0 s768 B
home.dartmouth.edu/themes/custom/darthome_2021/dist/images/svg/close-black.svg1209600.0 s742 B
/themes/custom/darthome_2021/dist/images/svg/arrow-right-...1209600.0 s741 B
/tr/?id=1292569484461212&ev=PageView&dl=https%3A%2F%2Fhom...0.0 ms19 B
/tr/?id=1292569484461212&ev=PageView&dl=https%3A%2F%2Fhom...0.0 ms16 B
/tr/?id=207343600390065&ev=PageView&dl=https%3A%2F%2Fhome...0.0 ms16 B

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

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.

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:17.884 source:map[column:156 line:12 type:source-location url:https://home.dartmouth.edu/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcPn3VjuOVP28.js?scope=footer&delta=0&language=en&theme=darthome_2021&include=eJx1ikEOwjAMBD9UCPQzHCM3Na4hsZHjVjyfqAgJInFZ7c7sDOYRRHSVhAXF49QWWpj_iGEXq_CGViFHUecrJ3BWiSlze4Zvtv8XLRjH03gOkzEtjjNhJyjrBPlQk_HDayc3LqgDqVLGmCqGd23tAo5WwO4f60CBWvT7CDd4_sLyAhcWYXI 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:1.685 source:map[column:6092 line:48 type:source-location url:https://home.dartmouth.edu/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcPn3VjuOVP28.js?scope=footer&delta=0&language=en&theme=darthome_2021&include=eJx1ikEOwjAMBD9UCPQzHCM3Na4hsZHjVjyfqAgJInFZ7c7sDOYRRHSVhAXF49QWWpj_iGEXq_CGViFHUecrJ3BWiSlze4Zvtv8XLRjH03gOkzEtjjNhJyjrBPlQk_HDayc3LqgDqVLGmCqGd23tAo5WwO4f60CBWvT7CDd4_sLyAhcWYXI urlProvider:network]] map[reflowTime:0.788 source:map[column:11660 line:67 type:source-location url:https://home.dartmouth.edu/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcPn3VjuOVP28.js?scope=footer&delta=0&language=en&theme=darthome_2021&include=eJx1ikEOwjAMBD9UCPQzHCM3Na4hsZHjVjyfqAgJInFZ7c7sDOYRRHSVhAXF49QWWpj_iGEXq_CGViFHUecrJ3BWiSlze4Zvtv8XLRjH03gOkzEtjjNhJyjrBPlQk_HDayc3LqgDqVLGmCqGd23tAo5WwO4f60CBWvT7CDd4_sLyAhcWYXI urlProvider:network]] map[reflowTime:20.378 source:map[type:text value:[unattributed]]] map[reflowTime:4.645 source:map[column:46560 line:36 type:source-location url:https://home.dartmouth.edu/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcPn3VjuOVP28.js?scope=footer&delta=0&language=en&theme=darthome_2021&include=eJx1ikEOwjAMBD9UCPQzHCM3Na4hsZHjVjyfqAgJInFZ7c7sDOYRRHSVhAXF49QWWpj_iGEXq_CGViFHUecrJ3BWiSlze4Zvtv8XLRjH03gOkzEtjjNhJyjrBPlQk_HDayc3LqgDqVLGmCqGd23tAo5WwO4f60CBWvT7CDd4_sLyAhcWYXI urlProvider:network]] map[reflowTime:8.42 source:map[column:5862 line:48 type:source-location url:https://home.dartmouth.edu/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcPn3VjuOVP28.js?scope=footer&delta=0&language=en&theme=darthome_2021&include=eJx1ikEOwjAMBD9UCPQzHCM3Na4hsZHjVjyfqAgJInFZ7c7sDOYRRHSVhAXF49QWWpj_iGEXq_CGViFHUecrJ3BWiSlze4Zvtv8XLRjH03gOkzEtjjNhJyjrBPlQk_HDayc3LqgDqVLGmCqGd23tAo5WwO4f60CBWvT7CDd4_sLyAhcWYXI urlProvider:network]] map[reflowTime:1.047 source:map[column:24571 line:24 type:source-location url:https://home.dartmouth.edu/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcPn3VjuOVP28.js?scope=footer&delta=0&language=en&theme=darthome_2021&include=eJx1ikEOwjAMBD9UCPQzHCM3Na4hsZHjVjyfqAgJInFZ7c7sDOYRRHSVhAXF49QWWpj_iGEXq_CGViFHUecrJ3BWiSlze4Zvtv8XLRjH03gOkzEtjjNhJyjrBPlQk_HDayc3LqgDqVLGmCqGd23tAo5WwO4f60CBWvT7CDd4_sLyAhcWYXI urlProvider:network]] map[reflowTime:1.567 source:map[column:1338 line:67 type:source-location url:https://home.dartmouth.edu/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcPn3VjuOVP28.js?scope=footer&delta=0&language=en&theme=darthome_2021&include=eJx1ikEOwjAMBD9UCPQzHCM3Na4hsZHjVjyfqAgJInFZ7c7sDOYRRHSVhAXF49QWWpj_iGEXq_CGViFHUecrJ3BWiSlze4Zvtv8XLRjH03gOkzEtjjNhJyjrBPlQk_HDayc3LqgDqVLGmCqGd23tAo5WwO4f60CBWvT7CDd4_sLyAhcWYXI urlProvider:network]] map[reflowTime:1.31 source:map[column:2777 line:67 type:source-location url:https://home.dartmouth.edu/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcPn3VjuOVP28.js?scope=footer&delta=0&language=en&theme=darthome_2021&include=eJx1ikEOwjAMBD9UCPQzHCM3Na4hsZHjVjyfqAgJInFZ7c7sDOYRRHSVhAXF49QWWpj_iGEXq_CGViFHUecrJ3BWiSlze4Zvtv8XLRjH03gOkzEtjjNhJyjrBPlQk_HDayc3LqgDqVLGmCqGd23tAo5WwO4f60CBWvT7CDd4_sLyAhcWYXI urlProvider:network]] map[reflowTime:1.433 source:map[column:4207 line:67 type:source-location url:https://home.dartmouth.edu/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcPn3VjuOVP28.js?scope=footer&delta=0&language=en&theme=darthome_2021&include=eJx1ikEOwjAMBD9UCPQzHCM3Na4hsZHjVjyfqAgJInFZ7c7sDOYRRHSVhAXF49QWWpj_iGEXq_CGViFHUecrJ3BWiSlze4Zvtv8XLRjH03gOkzEtjjNhJyjrBPlQk_HDayc3LqgDqVLGmCqGd23tAo5WwO4f60CBWvT7CDd4_sLyAhcWYXI urlProvider:network]] map[reflowTime:0.59 source:map[column:5140 line:82 type:source-location url:https://home.dartmouth.edu/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcPn3VjuOVP28.js?scope=footer&delta=0&language=en&theme=darthome_2021&include=eJx1ikEOwjAMBD9UCPQzHCM3Na4hsZHjVjyfqAgJInFZ7c7sDOYRRHSVhAXF49QWWpj_iGEXq_CGViFHUecrJ3BWiSlze4Zvtv8XLRjH03gOkzEtjjNhJyjrBPlQk_HDayc3LqgDqVLGmCqGd23tAo5WwO4f60CBWvT7CDd4_sLyAhcWYXI urlProvider:network]] map[reflowTime:0.712 source:map[column:5511 line:82 type:source-location url:https://home.dartmouth.edu/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcPn3VjuOVP28.js?scope=footer&delta=0&language=en&theme=darthome_2021&include=eJx1ikEOwjAMBD9UCPQzHCM3Na4hsZHjVjyfqAgJInFZ7c7sDOYRRHSVhAXF49QWWpj_iGEXq_CGViFHUecrJ3BWiSlze4Zvtv8XLRjH03gOkzEtjjNhJyjrBPlQk_HDayc3LqgDqVLGmCqGd23tAo5WwO4f60CBWvT7CDd4_sLyAhcWYXI urlProvider:network]] map[reflowTime:0.245 source:map[column:6513 line:82 type:source-location 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url:https://home.dartmouth.edu/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcPn3VjuOVP28.js?scope=footer&delta=0&language=en&theme=darthome_2021&include=eJx1ikEOwjAMBD9UCPQzHCM3Na4hsZHjVjyfqAgJInFZ7c7sDOYRRHSVhAXF49QWWpj_iGEXq_CGViFHUecrJ3BWiSlze4Zvtv8XLRjH03gOkzEtjjNhJyjrBPlQk_HDayc3LqgDqVLGmCqGd23tAo5WwO4f60CBWvT7CDd4_sLyAhcWYXI urlProvider:network]] map[reflowTime:3.656 source:map[column:12830 line:82 type:source-location url:https://home.dartmouth.edu/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcPn3VjuOVP28.js?scope=footer&delta=0&language=en&theme=darthome_2021&include=eJx1ikEOwjAMBD9UCPQzHCM3Na4hsZHjVjyfqAgJInFZ7c7sDOYRRHSVhAXF49QWWpj_iGEXq_CGViFHUecrJ3BWiSlze4Zvtv8XLRjH03gOkzEtjjNhJyjrBPlQk_HDayc3LqgDqVLGmCqGd23tAo5WwO4f60CBWvT7CDd4_sLyAhcWYXI urlProvider:network]] map[reflowTime:0.456 source:map[column:86058 line:77 type:source-location url:https://js.hs-analytics.net/analytics/1776803700000/8382967.js urlProvider:network]]]

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLProtocol
home.dartmouth.edu/http/1.1
/sites/home/files/css/css_woyE5Qoqoczq6ava0GANAGykvADIgb3...http/1.1
/sites/home/files/css/css_y_100t49BBZk-fo9Qccymx5GB8ti54p...http/1.1
/sites/home/files/js/js_Ed8iMdh7Z8LyUrusvVNded6YTT5rneJSW...http/1.1
home.dartmouth.edu/modules/contrib/google_tag/js/gtag.js?tduweyhttp/1.1
home.dartmouth.edu/modules/contrib/google_tag/js/gtm.js?tduweyhttp/1.1
/themes/custom/darthome_2021/src/fonts/dartmouth-ruzika/D...http/1.1
/themes/custom/darthome_2021/src/fonts/dartmouth-ruzika/D...http/1.1
/themes/custom/darthome_2021/src/fonts/dartmouth-ruzika/D...http/1.1
/themes/custom/darthome_2021/src/fonts/dartmouth-ruzika/D...http/1.1
/themes/custom/darthome_2021/src/fonts/national/National2...http/1.1
/themes/custom/darthome_2021/src/fonts/national/National2...http/1.1
/themes/custom/darthome_2021/src/fonts/national/National2...http/1.1
/themes/custom/darthome_2021/src/fonts/national/National2...http/1.1
/sites/home/files/styles/max_width_1440px/public/2025-09/...http/1.1
/sites/home/files/styles/max_width_1440px/public/2026-03/...http/1.1
/sites/home/files/styles/max_width_720px/public/2024-09/f...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-06/a...http/1.1
/sites/home/files/styles/max_width_720px/public/news/imag...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/t...http/1.1
/sites/home/files/styles/max_width_720px/public/news/wysi...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-05/b...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-06/C...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-06/c...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/c...http/1.1
/sites/home/files/styles/max_width_720px/public/news/imag...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/n...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-06/r...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/t...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/e...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/t...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/t...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-06/f...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/t...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-06/g...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/g...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-06/h...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/t...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/l...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/t...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/n...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/p...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/p...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/p...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-06/q...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/r...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/t...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/t...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/s...http/1.1
/sites/home/files/styles/max_width_720px/public/2021-07/t...http/1.1
/sites/home/files/styles/cta_2x_820x520/public/2023-09/Ge...http/1.1
/sites/home/files/styles/cta_2x_820x520/public/2024-09/20...http/1.1
/sites/home/files/styles/cta_2x_820x520/public/2024-09/20...http/1.1
/sites/home/files/styles/cta_2x_820x520/public/2024-09/La...http/1.1
/sites/home/files/styles/3_2_lg/public/2026-04/20260217-N...http/1.1
/sites/home/files/styles/3_2_lg/public/2026-04/20260219-L...http/1.1
/sites/home/files/styles/3_2_lg/public/2026-04/Abundance_...http/1.1
/sites/home/files/styles/instagram_thumbnail/public/2026-...http/1.1
/sites/home/files/styles/instagram_thumbnail/public/2026-...http/1.1
/sites/home/files/styles/instagram_thumbnail/public/2026-...http/1.1
/sites/home/files/styles/instagram_thumbnail/public/2026-...http/1.1
/sites/home/files/styles/instagram_thumbnail/public/2026-...http/1.1
/sites/home/files/styles/instagram_thumbnail/public/2025-...http/1.1
/sites/home/files/styles/instagram_thumbnail/public/2026-...http/1.1
/sites/home/files/styles/instagram_thumbnail/public/2025-...http/1.1
/sites/home/files/styles/instagram_thumbnail/public/2025-...http/1.1
/sites/home/files/styles/instagram_thumbnail/public/2025-...http/1.1
/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcP...http/1.1
/sites/home/files/js/js_ihZ_RC6byttxafpvZ60R4gczzIOesacI4...http/1.1
/themes/custom/darthome_2021/dist/images/svg/arrow-right-...http/1.1
home.dartmouth.edu/themes/custom/darthome_2021/dist/images/svg/play--alt.svghttp/1.1
home.dartmouth.edu/themes/custom/darthome_2021/dist/images/svg/link-external.svghttp/1.1
home.dartmouth.edu/themes/custom/darthome_2021/dist/images/svg/arrow.svghttp/1.1
home.dartmouth.edu/themes/custom/darthome_2021/dist/images/svg/close-black.svghttp/1.1
home.dartmouth.edu/emergency/notification/getRave?_=1776803874520http/1.1
home.dartmouth.edu/api/dart-universal-notificationhttp/1.1
home.dartmouth.edu/themes/custom/darthome_2021/favicon.icohttp/1.1

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
value: No additional origins are good candidates for preconnecting

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.

URLTransfer SizeDuration
cdn.bc0a.com/autopilot/f00000000283318/autopilot_sdk.js24.3 KiB1.2 s
home.dartmouth.edu/modules/contrib/google_tag/js/gtag.js?tduwey1.2 KiB513 ms
home.dartmouth.edu/modules/contrib/google_tag/js/gtm.js?tduwey1.1 KiB513 ms
/sites/home/files/js/js_Ed8iMdh7Z8LyUrusvVNded6YTT5rneJSW...851 B513 ms
/sites/home/files/css/css_y_100t49BBZk-fo9Qccymx5GB8ti54p...47.7 KiB1.2 s
/sites/home/files/css/css_woyE5Qoqoczq6ava0GANAGykvADIgb3...4.5 KiB181 ms

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.

URLResource SizeEst Savings
Nona Hendryx in Dartmouth's DREAM Studio div.blazy > div.field__item > div.media > img.media__element
/sites/home/files/styles/3_2_lg/public/2026-04/20260217-N...93.9 KiB68.6 KiB
Dartmouth Green with Green color swatch div.blazy > div.field__item > div.media > img.media__element
/video/2137207115-3e222c8fccd93dd4103b350731ec7e594aa1389...263.5 KiB57.5 KiB
Ezra Klein and Heather Gerken div.blazy > div.field__item > div.media > img.media__element
/sites/home/files/styles/3_2_lg/public/2026-04/Abundance_...77.5 KiB56.6 KiB
Daniel Liu div.blazy > div.field__item > div.media > img.media__element
/sites/home/files/styles/3_2_lg/public/2026-04/20260219-L...47.9 KiB35.0 KiB
Students at Rauner div.blazy > div.field__item > div.media > img.media__element
/sites/home/files/styles/cta_2x_820x520/public/2024-09/20...54.3 KiB20.1 KiB
Micah Green div.blazy > div.field__item > div.media > img.media__element
/sites/home/files/styles/cta_2x_820x520/public/2024-09/20...45.9 KiB17.0 KiB
Geisel students walking on campus div.blazy > div.field__item > div.media > img.media__element
/sites/home/files/styles/cta_2x_820x520/public/2023-09/Ge...43.2 KiB16.0 KiB

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 2.8 s
URLTime Spent
dartmouth.edu/1.1 s
www.dartmouth.edu/630 ms
www.dartmouth.edu/762 ms
home.dartmouth.edu/330 ms
home.dartmouth.edu/0.0 ms

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: 260 ms 39.3 KiB
URLTransfer SizeEst Savings
/sites/home/files/css/css_y_100t49BBZk-fo9Qccymx5GB8ti54p...47.1 KiB39.3 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: 400 ms 414.0 KiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtm.js?id=GTM-WHRVJHV139.0 KiB67.5 KiB
www.googletagmanager.com/gtag/js?id=G-NMTFNS313S&cx=c&gtm=4e64k0h2156.3 KiB66.8 KiB
/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcP...112.2 KiB63.2 KiB
www.googletagmanager.com/gtm.js?id=GTM-PDSXF64116.9 KiB63.1 KiB
www.googletagmanager.com/gtag/js?id=G-FDKJ4M25RS&cx=c&gtm=4e64h1152.1 KiB62.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-MRK4RQQ142.0 KiB59.7 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB30.8 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.

URLTotal CPU TimeScript EvaluationScript Parse
/sites/home/files/js/js_orPJ7eQR1DqYGkonn0F0w1KPVPTS4YxcP...1.8 s495 ms38 ms
home.dartmouth.edu/763 ms3.9 ms0.6 ms
js.hs-analytics.net/analytics/1776803700000/8382967.js714 ms555 ms14 ms
Unattributable635 ms30 ms0.0 ms
www.googletagmanager.com/gtag/js?id=G-FDKJ4M25RS&cx=c&gtm=4e64h1303 ms257 ms45 ms
www.googletagmanager.com/gtm.js?id=GTM-MRK4RQQ279 ms226 ms47 ms
www.googletagmanager.com/gtag/js?id=G-NMTFNS313S&cx=c&gtm=4e64k0h2246 ms208 ms37 ms
www.googletagmanager.com/gtm.js?id=GTM-WHRVJHV179 ms138 ms40 ms
www.googletagmanager.com/gtm.js?id=GTM-PDSXF64172 ms143 ms27 ms
connect.facebook.net/en_US/fbevents.js131 ms99 ms30 ms
/signals/config/1292569484461212?v=2.9.303&r=stable&domai...115 ms98 ms16 ms
/signals/config/207343600390065?v=2.9.303&r=stable&domain...91 ms80 ms7.9 ms
js.hubspot.com/web-interactives-embed.js78 ms64 ms9.2 ms
js.usemessages.com/conversations-embed.js69 ms57 ms8.3 ms
cdn.bc0a.com/autopilot/f00000000283318/autopilot_sdk.js63 ms47 ms7.1 ms
snap.licdn.com/li.lms-analytics/insight.min.js51 ms38 ms7.4 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.

CategoryTime Spent
Script Evaluation2.6 s
Other1.6 s
Style & Layout822 ms
Script Parsing & Compilation364 ms
Rendering304 ms
Parse HTML & CSS86 ms
Garbage Collection32 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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
The page has an unload handler in a sub frame.Actionable

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer Size
/exp=1776807474~acl=/c8f54307-9083-4436-acfb-9b9311dac4bd...4.0 MiB
/exp=1776807474~acl=/c8f54307-9083-4436-acfb-9b9311dac4bd...4.0 MiB
/exp=1776807474~acl=/c8f54307-9083-4436-acfb-9b9311dac4bd...3.4 MiB
/exp=1776807474~acl=/c8f54307-9083-4436-acfb-9b9311dac4bd...3.3 MiB
/exp=1776807474~acl=/c8f54307-9083-4436-acfb-9b9311dac4bd...598.8 KiB
/video/2137207115-3e222c8fccd93dd4103b350731ec7e594aa1389...263.8 KiB
f.vimeocdn.com/p/4.46.41/js/player.module.js210.2 KiB
www.googletagmanager.com/gtag/js?id=G-NMTFNS313S&cx=c&gtm=4e64k0h2156.3 KiB
www.googletagmanager.com/gtag/js?id=G-FDKJ4M25RS&cx=c&gtm=4e64h1152.2 KiB
www.googletagmanager.com/gtm.js?id=GTM-MRK4RQQ142.0 KiB

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

●Layout shift culprits
●Optimize DOM size
●Font display
●LCP breakdown
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 11 user timings
●Avoid long main-thread tasks 20 long tasks found
●Avoid non-composited animations 1 animated element found
●Image elements have explicit `width` and `height`
●Network Requests
●Network Round Trip Times 100 ms
●Server Backend Latencies 460 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 440 ms
○INP breakdown
○LCP request discovery
○Avoid large layout shifts
93

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.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.views-row > article.video > div.news--image > button.button--pause div.views-row > article.video > div.news--image > button.button--pause

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.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Giving div.footer-right > div#block-footercallout > div.clearfix > h6

These are opportunities to improve keyboard navigation in your application.

○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
●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
●`<frame>` or `<iframe>` elements have a title
●`<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.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●All heading elements contain content.
○`[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
○`<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>`.
○Uses ARIA roles only on compatible elements
○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.
54

Best Practices

Trust and Safety

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Insecure URLRequest Resolution
www.dartmouth.edu/Allowed
home.dartmouth.edu/Allowed

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
AttributionReporting
snap.licdn.com/li.lms-analytics/insight.min.js

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
www.googletagmanager.com/gtm.js?id=GTM-MRK4RQQ line 254, col 482
Loading the script 'https://capi-automation.s3.us-east-2.amazonaws.com/public/client_js/capiParamBuilder/clientParamBuilder.bundle.js' violates the following Content Security Policy directive: "script-src-elem 'self' 'unsafe-inline' *.zoomph.com *.dartmouth.edu *.bc0a.com *.googletagmanager.com www.googletagmanager.com *.youtube.com youtube.com *.google-analytics.com stats.g.doubleclick.net marvel-b1-cdn.bc0a.com home.dartmouth.edu cse.google.com *.google.com *.withgoogle.com *.googleadservices.com www.google.com *.vimeo.com vimeo.com siteimproveanalytics.com *.googleapis.com *.gstatic.com js.hs-scripts.com js.hs-analytics.net js.hs-banner.com *.hubspot.com js.hsadspixel.net js.usemessages.com connect.facebook.net js-agent.newrelic.com bam.nr-data.net *.linkedin.com snap.licdn.com https://cdn.bc0a.com https://cdnjs.cloudflare.com https://player.vimeo.com https://www.youtube.com platform.instagram.com platform.twitter.com". 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Issue type
Content security policy
●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
●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
85

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.

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destinationLink Text
/news/2026/04/roth-scholar-nona-hendryx-innovates-across-...READ MORE
dialogues.dartmouth.edu/LEARN MORE

Format your HTML in a way that enables crawlers to better understand your app’s content.

Crawling and Indexing

If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed. Learn more about robots.txt.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Line #ContentError
17Same filename and directory in other branchesSyntax not understood

To appear in search results, crawlers need access to your app.

○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 are crawlable
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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