Lighthouse Desktop

· 0 checks — Desktop 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
/digital/AdobeTarget/Paint_The_House/Web/26-02-2026/SOTD_...	0.0 ms	2.0 MiB
/digital/AdobeTarget/Paint_The_House/Web/26-02-2026/SOTD_...	0.0 ms	1.9 MiB
www.subway.com/dist/RemoteOrder/js/app.js?v=6.22.177	1200.0 s	340.9 KiB
/dist/RemoteOrder/js/components/customizer/index.14f2e228...	1200.0 s	333.6 KiB
assets.adobedtm.com/041a2403188d/9c33e01fd853/launch-c29f9a12ff43.min.js	3600.0 s	262.0 KiB
www.subway.com/dist/RemoteOrder/css/app-ltr.css?v=6.22.177	1200.0 s	124.1 KiB
www.subway.com/klyminKDzLp_AdLIplZ0/m3cONpw2zamSkX/WWdFNA/P2IQ/VBhmIG0B	21600.0 s	167.8 KiB
www.subway.com/dist/RemoteOrder/css/asset/fonts/SubwaySansLCG-Bold.woff	1200.0 s	117.4 KiB
www.subway.com/dist/RemoteOrder/css/asset/fonts/SubwaySansLCG-Medium.woff	1200.0 s	116.8 KiB
www.subway.com/dist/RemoteOrder/css/asset/fonts/SubwaySansLCG-Regular.woff	1200.0 s	112.6 KiB
cdn.quantummetric.com/qscripts/quantum-subway.js	300.0 s	101.4 KiB
www.subway.com/dist/RemoteOrder/css/asset/fonts/SubwaySansCond-Bold.woff	1200.0 s	87.2 KiB
www.subway.com/dist/RemoteOrder/css/asset/fonts/SubwaySansCond-Medium.woff	1200.0 s	85.9 KiB
js-cdn.dynatrace.com/jstag/15c157a40ab/bf69157qdp/66653261b3f39eb6_complete.js	3600.0 s	78.6 KiB
cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js	86400.0 s	127.0 KiB
www.subway.com/dist/RemoteOrder/webfonts/SubwaySans-Bold-Cy-Gr-Web.woff2	1200.0 s	54.4 KiB
www.subway.com/dist/RemoteOrder/webfonts/SubwaySans-Medium-Cy-Gr-Web.woff2	1200.0 s	53.5 KiB
www.subway.com/dist/RemoteOrder/webfonts/SubwaySans-Regular-Cy-Gr-Web.woff2	1200.0 s	49.5 KiB
www.subway.com/dist/RemoteOrder/js/main.js?v=6.22.177	1200.0 s	40.7 KiB
www.subway.com/dist/RemoteOrder/webfonts/SubwaySansCond-Medium-Web.woff2	1200.0 s	36.2 KiB
www.subway.com/dist/RemoteOrder/css/main.css?v=6.22.177	1200.0 s	26.2 KiB
cdn.branch.io/branch-latest.min.js	300.0 s	23.5 KiB
www.subway.com/klyminKDzLp_AdLIplZ0/Vb/fnk3NA/cwI0/aiQoKDAq	86400.0 s	28.5 KiB
www.subway.com/dist/RemoteOrder/js/kount-web-client-sdk-bundle.js	1200.0 s	7.4 KiB
www.subway.com/akam/13/e64ab18	21600.0 s	9.4 KiB
www.subway.com/dist/RemoteOrder/js/launchdarkly.js?6.22.177	1200.0 s	4.5 KiB
cdn.cookielaw.org/scripttemplates/otSDKStub.js?v=20230814-2	86400.0 s	9.1 KiB
/logos/7d120555-065a-4ef8-b127-16aa186c5df2/dfb9fe2f-c0dd...	86400.0 s	4.7 KiB
www.subway.com/Assets/RemoteOrder/img/05-ui-icon-pickup@3x.png	1200.0 s	1.4 KiB
www.subway.com/dist/RemoteOrder/css/asset/icons/close.svg	1200.0 s	1.2 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg	86400.0 s	2.5 KiB
/_r?sdk=web2.87.1&branch_key=key_live_plIfO7seKutGupcrCCB...	0.0 ms	669 B
www.subway.com/Assets/RemoteOrder/img/close@3x.png	1200.0 s	745 B
www.subway.com/Assets/RemoteOrder/img/close@2x.png	1200.0 s	642 B
www.subway.com/Assets/RemoteOrder/img/share.png	1200.0 s	634 B
www.subway.com/Assets/RemoteOrder/img/BestSellerIcon.svg	1200.0 s	617 B
/041a2403188d/9c33e01fd853/a3a94b4f01f9/RCb5c751071ada4c8...	3600.0 s	620 B
/041a2403188d/9c33e01fd853/a3a94b4f01f9/RCef874f7a016240b...	3600.0 s	565 B
www.subway.com/Assets/RemoteOrder/img/close.png	1200.0 s	456 B
www.subway.com/klyminKDzLp_AdLIplZ0/Vb/fnk3NA/Pz8b/XQNpXzZY	86400.0 s	998 B
www.subway.com/dist/RemoteOrder/css/asset/icons/close-icon.svg	1200.0 s	434 B
www.subway.com/dist/RemoteOrder/css/font.css?v=6.22.177	1200.0 s	416 B
cdn.cookielaw.org/logos/static/ot_close.svg	86400.0 s	626 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.

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.subway.com/dist/RemoteOrder/css/asset/fonts/SubwaySansCond-Bold.woff	80 ms
fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2	5.0 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:22.616 source:map[column:168525 line:7 type:source-location url:https://cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js 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:83 source:map[type:text value:[unattributed]]] map[reflowTime:14.473 source:map[column:90528 line:0 type:source-location url:https://www.subway.com/dist/RemoteOrder/js/main.js?v=6.22.177 urlProvider:network]] map[reflowTime:0.55 source:map[column:58641 line:0 type:source-location url:https://www.subway.com/dist/RemoteOrder/js/main.js?v=6.22.177 urlProvider:network]] map[reflowTime:22.616 source:map[column:168541 line:6 type:source-location url:https://cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js urlProvider:network]]]

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]

items: [map[duration:582.16 label:Time to first byte subpart:timeToFirstByte] map[duration:2422.102 label:Resource load delay subpart:resourceLoadDelay] map[duration:188.825 label:Resource load duration subpart:resourceLoadDuration] map[duration:-42.864 label:Element render delay subpart:elementRenderDelay]]

lhId: page-0-VIDEO

nodeLabel: div#paint-the-house > section.feature-banner > div#feature-banner-desktop-video > video#feature-banner-video

path: 2,HTML,1,BODY,27,MAIN,6,DIV,1,DIV,0,SECTION,4,DIV,0,VIDEO

selector: div#paint-the-house > section.feature-banner > div#feature-banner-desktop-video > video#feature-banner-video

snippet: <video preload="auto" autoplay="" muted="" loop="" playsinline="" class="feature-banner__video" id="feature-banner-video" poster="">

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-VIDEO

nodeLabel: div#paint-the-house > section.feature-banner > div#feature-banner-desktop-video > video#feature-banner-video

path: 2,HTML,1,BODY,27,MAIN,6,DIV,1,DIV,0,SECTION,4,DIV,0,VIDEO

selector: div#paint-the-house > section.feature-banner > div#feature-banner-desktop-video > video#feature-banner-video

snippet: <video preload="auto" autoplay="" muted="" loop="" playsinline="" class="feature-banner__video" id="feature-banner-video" poster="">

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.

URL	Protocol
/dam/urn:aaid:aem:91ca1652-aac8-4437-8d8f-46705391983d/re...	http/1.1
/dam/urn:aaid:aem:7415f31c-f0e9-463c-984b-b45656633775/re...	http/1.1
/dam/urn:aaid:aem:b0625dc0-5c4d-4d52-8074-daa35e5a81fc/re...	http/1.1
/dam/urn:aaid:aem:6153aa05-8b15-4d08-aa19-239cb2d27df6/re...	http/1.1
/dam/urn:aaid:aem:63522e12-d82d-489c-9026-169c9900d94d/re...	http/1.1
/dam/urn:aaid:aem:4acf2be5-0e2a-48b2-af26-f965cac82cf1/re...	http/1.1
/dam/urn:aaid:aem:af861677-c797-4f16-92cf-3e3b0ea75a1a/re...	http/1.1
/dam/urn:aaid:aem:bc917c78-9dd0-4234-8e2b-ed14a7f60790/re...	http/1.1
/dam/urn:aaid:aem:1a7cdc7a-0d81-41ad-8819-570faf139bee/re...	http/1.1
/dam/urn:aaid:aem:cb4b209a-17b7-41a0-94c0-fdfe6441236e/re...	http/1.1
/dam/urn:aaid:aem:c93ec1e1-4b1a-4401-9baf-cb3404d56968/re...	http/1.1
/dam/urn:aaid:aem:5eb41811-0323-4511-8ff1-b878d4a8f39d/re...	http/1.1
/dam/urn:aaid:aem:3200b79e-8e4c-40ce-9552-a43868872c17/re...	http/1.1
/dam/urn:aaid:aem:e9e37739-de39-405b-a95d-71cdf2310f0f/re...	http/1.1
/dam/urn:aaid:aem:4921f3ec-63b1-4d38-bd5a-64905b10b25d/re...	http/1.1
/dam/urn:aaid:aem:8e1ac33c-46c2-4d1d-92ae-71a42acbc386/re...	http/1.1
/dam/urn:aaid:aem:bae5580a-0353-4e8a-98d9-18acf9727742/re...	http/1.1
/dam/urn:aaid:aem:7ba05d17-1942-4ce3-9654-775176be3fe9/re...	http/1.1
/digital/AdobeTarget/Paint_The_House/Web/26-02-2026/SOTD_...	http/1.1
/digital/AdobeTarget/Paint_The_House/Web/26-02-2026/SOTD_...	http/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.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.

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

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
cdnjs.cloudflare.com/ajax/libs/bodymovin/5.7.4/lottie.min.js	54.3 KiB	461 ms
/en-us/-/media/global/files/js/media_library.js?v=1;d=07-...	785 B
www.subway.com/dist/RemoteOrder/css/app-ltr.css?v=6.22.177	124.1 KiB	491 ms
ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js	30.9 KiB	372 ms
www.subway.com/dist/RemoteOrder/css/main.css?v=6.22.177	26.2 KiB	82 ms
/en-us/-/media/global/files/css/media_library.css?v=18;d=...	1.7 KiB
cdn.jsdelivr.net/npm/launchdarkly-js-client-sdk@3.1.3/dist/ldclient.min.js	19.6 KiB	319 ms
cdnjs.cloudflare.com/ajax/libs/moment.js/2.10.3/moment.min.js	11.8 KiB	301 ms
cdn.cookielaw.org/scripttemplates/otSDKStub.js?v=20230814-2	9.1 KiB	263 ms
cdnjs.cloudflare.com/ajax/libs/vanilla-lazyload/8.7.1/lazyload.min.js	2.4 KiB	248 ms
www.subway.com/dist/RemoteOrder/css/font.css?v=6.22.177	416 B

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
Subway catering box with an unwrapped sub, chips and cookie nearby. `section#id_50_50_7d412 > div.component_50_50_image > picture > img`	/en-us/-/media/northamerica/usa/shared/2026/2026_5050_cat...	198.5 KiB	157.7 KiB
Wednesday's Sweet Onion Teriyaki Sub `section#id_promotion_c4fdf > div.component_promotions_image > picture > img`	/en-us/-/media/northamerica/usa/new-home/2026/w1/sotd/hp_...	43.5 KiB	33.2 KiB
"Don't miss the meatier shower" with 2 Protein Pockets `section#id_promotion_19e74 > div.component_promotions_image > picture > img`	/en-us/-/media/northamerica/usa/new-home/2026/w1/hp_promo...	42.9 KiB	32.7 KiB
Protein Pocket with 20+ G of Protein `section#id_promotion_8f583 > div.component_promotions_image > picture > img`	/en-us/-/media/northamerica/usa/new-home/2026/w1/hp_promo...	40.9 KiB	31.2 KiB
"BOGO" with 2 Subway sandwiches and Sub Club logo `section#id_promotion_1cc8d > div.component_promotions_image > picture > img`	/en-us/-/media/northamerica/usa/new-home/2026/w1/hp_promo...	32.9 KiB	25.0 KiB
div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img `div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img`	/dam/urn:aaid:aem:63522e12-d82d-489c-9026-169c9900d94d/re...	27.4 KiB	21.0 KiB
div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img `div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img`	/dam/urn:aaid:aem:7415f31c-f0e9-463c-984b-b45656633775/re...	25.1 KiB	18.7 KiB
div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img `div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img`	/dam/urn:aaid:aem:91ca1652-aac8-4437-8d8f-46705391983d/re...	24.7 KiB	18.4 KiB
div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img `div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img`	/dam/urn:aaid:aem:b0625dc0-5c4d-4d52-8074-daa35e5a81fc/re...	24.4 KiB	18.2 KiB
div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img `div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img`	/dam/urn:aaid:aem:6153aa05-8b15-4d08-aa19-239cb2d27df6/re...	23.3 KiB	17.4 KiB
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:cb4b209a-17b7-41a0-94c0-fdfe6441236e/re...	21.7 KiB	9.4 KiB
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:5eb41811-0323-4511-8ff1-b878d4a8f39d/re...	21.0 KiB	8.7 KiB
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:4acf2be5-0e2a-48b2-af26-f965cac82cf1/re...	20.0 KiB	7.7 KiB
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:4921f3ec-63b1-4d38-bd5a-64905b10b25d/re...	19.0 KiB	6.7 KiB
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:8e1ac33c-46c2-4d1d-92ae-71a42acbc386/re...	18.2 KiB	5.9 KiB
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:7ba05d17-1942-4ce3-9654-775176be3fe9/re...	17.6 KiB	5.3 KiB
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:bc917c78-9dd0-4234-8e2b-ed14a7f60790/re...	17.1 KiB	4.8 KiB
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:3200b79e-8e4c-40ce-9552-a43868872c17/re...	16.5 KiB	4.1 KiB

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 499 ms

URL	Time Spent
subway.com/	226 ms
www.subway.com/	273 ms
www.subway.com/en-us	0.0 ms

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

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: 160 ms 161.3 KiB

URL	Transfer Size	Est Savings
www.subway.com/dist/RemoteOrder/css/app-ltr.css?v=6.22.177	123.9 KiB	120.4 KiB
www.subway.com/dist/RemoteOrder/css/main.css?v=6.22.177	26.0 KiB	21.8 KiB
	21.6 KiB	19.1 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: 570 ms 757.5 KiB

URL	Transfer Size	Est Savings
www.subway.com/dist/RemoteOrder/js/app.js?v=6.22.177	333.1 KiB	211.4 KiB
/dist/RemoteOrder/js/components/customizer/index.14f2e228...	333.4 KiB	200.1 KiB
assets.adobedtm.com/041a2403188d/9c33e01fd853/launch-c29f9a12ff43.min.js	261.8 KiB	90.9 KiB
cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js	126.9 KiB	67.1 KiB
cdnjs.cloudflare.com/ajax/libs/bodymovin/5.7.4/lottie.min.js	53.7 KiB	47.1 KiB
cdn.quantummetric.com/qscripts/quantum-subway.js	100.8 KiB	35.6 KiB
www.subway.com/klyminKDzLp_AdLIplZ0/m3cONpw2zamSkX/WWdFNA/P2IQ/VBhmIG0B	166.9 KiB	34.4 KiB
js-cdn.dynatrace.com/jstag/15c157a40ab/bf69157qdp/66653261b3f39eb6_complete.js	78.2 KiB	27.9 KiB
ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js	29.6 KiB	21.6 KiB
ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js	32.2 KiB	21.3 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
Unattributable	516 ms	62 ms	0.0 ms
www.subway.com/en-us	448 ms	20 ms	5.3 ms
www.subway.com/dist/RemoteOrder/js/app.js?v=6.22.177	344 ms	241 ms	46 ms
cdn.quantummetric.com/qscripts/quantum-subway.js	287 ms	271 ms	9.5 ms
www.subway.com/klyminKDzLp_AdLIplZ0/m3cONpw2zamSkX/WWdFNA/P2IQ/VBhmIG0B	259 ms	233 ms	17 ms
assets.adobedtm.com/041a2403188d/9c33e01fd853/launch-c29f9a12ff43.min.js	199 ms	150 ms	42 ms
/dist/RemoteOrder/js/components/customizer/index.14f2e228...	150 ms	102 ms	40 ms
cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js	123 ms	70 ms	16 ms
www.subway.com/dist/RemoteOrder/js/main.js?v=6.22.177	94 ms	30 ms	4.1 ms
js-cdn.dynatrace.com/jstag/15c157a40ab/bf69157qdp/66653261b3f39eb6_complete.js	86 ms	69 ms	6.0 ms
www.subway.com/akam/13/e64ab18	50 ms	45 ms	1.2 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	1.5 s
Other	620 ms
Style & Layout	337 ms
Script Parsing & Compilation	227 ms
Rendering	70 ms
Parse HTML & CSS	53 ms
Garbage Collection	40 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 reason	Failure type
Pages with cache-control:no-store header cannot enter back/forward cache.	Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.	Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.	Not actionable

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 24.5 KiB

URL	Transfer Size	Est Savings
:root{--text: #222;--black: #000;--white: #fff;--grey: #6e6e6e;--blue: #5e9ed6;--yellow: #f2b700; … } …	7.2 KiB	5.2 KiB
:root{--text: #222;--black: #000;--white: #fff;--grey: #6e6e6e;--blue: #5e9ed6;--yellow: #f2b700; … } …	6.1 KiB	4.6 KiB
:root{--text: #222;--black: #000;--white: #fff;--grey: #6e6e6e;--blue: #5e9ed6;--yellow: #f2b700; … } …	4.8 KiB	3.7 KiB
:root{--text: #222;--black: #000;--white: #fff;--grey: #6e6e6e;--blue: #5e9ed6;--yellow: #f2b700; … } …	4.1 KiB	3.3 KiB
:root{--text: #222;--black: #000;--white: #fff;--grey: #6e6e6e;--blue: #5e9ed6;--yellow: #f2b700; … } …	3.8 KiB	3.1 KiB
:root{--text: #222;--black: #000;--white: #fff;--grey: #6e6e6e;--blue: #5e9ed6;--yellow: #f2b700; … } …	2.7 KiB	2.3 KiB
:root{--text: #222;--black: #000;--white: #fff;--grey: #6e6e6e;--blue: #5e9ed6;--yellow: #f2b700; … } …	2.8 KiB	2.3 KiB

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 2.4 KiB

URL	Transfer Size	Est Savings
www.subway.com/dist/RemoteOrder/js/kount-web-client-sdk-bundle.js	7.2 KiB	2.4 KiB

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.

URL	Transfer Size
/digital/AdobeTarget/Paint_The_House/Web/26-02-2026/SOTD_...	2.0 MiB
/digital/AdobeTarget/Paint_The_House/Web/26-02-2026/SOTD_...	1.9 MiB
www.subway.com/dist/RemoteOrder/js/app.js?v=6.22.177	340.9 KiB
/dist/RemoteOrder/js/components/customizer/index.14f2e228...	333.6 KiB
assets.adobedtm.com/041a2403188d/9c33e01fd853/launch-c29f9a12ff43.min.js	262.0 KiB
/en-us/-/media/northamerica/usa/shared/2026/2026_5050_cat...	198.8 KiB
www.subway.com/klyminKDzLp_AdLIplZ0/m3cONpw2zamSkX/WWdFNA/P2IQ/VBhmIG0B	167.8 KiB
cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js	127.0 KiB
www.subway.com/dist/RemoteOrder/css/app-ltr.css?v=6.22.177	124.1 KiB
www.subway.com/dist/RemoteOrder/css/asset/fonts/SubwaySansLCG-Bold.woff	117.4 KiB

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
Subway catering box with an unwrapped sub, chips and cookie nearby. `section#id_50_50_7d412 > div.component_50_50_image > picture > img`	/en-us/-/media/northamerica/usa/shared/2026/2026_5050_cat...
div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img `div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img`	/dam/urn:aaid:aem:91ca1652-aac8-4437-8d8f-46705391983d/re...
div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img `div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img`	/dam/urn:aaid:aem:7415f31c-f0e9-463c-984b-b45656633775/re...
div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img `div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img`	/dam/urn:aaid:aem:b0625dc0-5c4d-4d52-8074-daa35e5a81fc/re...
div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img `div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img`	/dam/urn:aaid:aem:6153aa05-8b15-4d08-aa19-239cb2d27df6/re...
div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img `div.bestseller-outofstock > div#bestsellerProductDetail > div.sub > img`	/dam/urn:aaid:aem:63522e12-d82d-489c-9026-169c9900d94d/re...
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:4acf2be5-0e2a-48b2-af26-f965cac82cf1/re...
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:af861677-c797-4f16-92cf-3e3b0ea75a1a/re...
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:bc917c78-9dd0-4234-8e2b-ed14a7f60790/re...
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:1a7cdc7a-0d81-41ad-8819-570faf139bee/re...
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:cb4b209a-17b7-41a0-94c0-fdfe6441236e/re...
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:c93ec1e1-4b1a-4401-9baf-cb3404d56968/re...
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:5eb41811-0323-4511-8ff1-b878d4a8f39d/re...
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:3200b79e-8e4c-40ce-9552-a43868872c17/re...
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:e9e37739-de39-405b-a95d-71cdf2310f0f/re...
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:4921f3ec-63b1-4d38-bd5a-64905b10b25d/re...
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:8e1ac33c-46c2-4d1d-92ae-71a42acbc386/re...
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:bae5580a-0353-4e8a-98d9-18acf9727742/re...
li.component_menu > button.component_menu_link > picture.component_menu_card_image > img `li.component_menu > button.component_menu_link > picture.component_menu_card_image > img`	/dam/urn:aaid:aem:7ba05d17-1942-4ce3-9654-775176be3fe9/re...
"Don't miss the meatier shower" with 2 Protein Pockets `section#id_promotion_19e74 > div.component_promotions_image > picture > img`	/en-us/-/media/northamerica/usa/new-home/2026/w1/hp_promo...
"BOGO" with 2 Subway sandwiches and Sub Club logo `section#id_promotion_1cc8d > div.component_promotions_image > picture > img`	/en-us/-/media/northamerica/usa/new-home/2026/w1/hp_promo...
Protein Pocket with 20+ G of Protein `section#id_promotion_8f583 > div.component_promotions_image > picture > img`	/en-us/-/media/northamerica/usa/new-home/2026/w1/hp_promo...
Wednesday's Sweet Onion Teriyaki Sub `section#id_promotion_c4fdf > div.component_promotions_image > picture > img`	/en-us/-/media/northamerica/usa/new-home/2026/w1/sotd/hp_...
Mother’s Day Subway Gift Cards. `section#id_promotion_48b59 > div.component_promotions_image > picture > img`	/en-us/-/media/northamerica/usa/new-home/2026/w1/hp_promo...
pause icon `section.feature-banner > div#feature-banner-desktop-video > button#toggleBtn > img#pauseIcon`	www.subway.com/en-us/-/media/northamerica/shared-content/pause.svg
ul > li.media_link > button.no_decoration > img.linkImage `ul > li.media_link > button.no_decoration > img.linkImage`	www.subway.com/en-us/-/media/northamerica/shared-content/franchisinglogo.png
ul > li.media_link > button.no_decoration > img.linkImage `ul > li.media_link > button.no_decoration > img.linkImage`	www.subway.com/en-us/-/media/project/remote-order/images/icons/desktop.png
profile sign in or join `nav.navbar > div.navbar_right > button.account_logged > img`	/en-us/-/media/project/remote-order/images/icons/05uiicon...
close `div.modal-tc > div.modal-content > a#btn-close-curbside > img`	www.subway.com/Assets/RemoteOrder/img/close@3x.png
close `div.modal-tc > div.modal-content > a#btn-close-curbside > img`	www.subway.com/Assets/RemoteOrder/img/close@3x.png
MVPRewardsLogo `section#id_guestmvprewards_94658 > div.image > picture > img`	/en-us/-/media/northamerica/shared-content/mvprewardslogo...
X `div.modal-content > div.modalPopup__button > button.popup__button > img.icon`	www.subway.com/Assets/RemoteOrder/img/share.png
ul > li.media_link > button.no_decoration > img.linkImage `ul > li.media_link > button.no_decoration > img.linkImage`	/en-us/-/media/project/remote-order/images/icons/subwayca...
empty bag `nav.navbar > div.navbar_right > button.cart_bag > img`	www.subway.com/en-us/-/media/project/remote-order/images/icons/emptycarticon.svg
X `div.modal-dialog > div.modal-content > button.btn-close > img.icon`	www.subway.com/Assets/RemoteOrder/img/close.png
X `div.modal-dialog > div.modal-content > button.btn-close > img.icon`	www.subway.com/Assets/RemoteOrder/img/close.png
facebook `ul > li > button.icon > img`	www.subway.com/en-us/-/media/project/remote-order/images/icons/facebook.svg
instagram `ul > li > button.icon > img`	www.subway.com/en-us/-/media/project/remote-order/images/icons/instagram.svg

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

●Layout shift culprits

●Optimize DOM size

●Optimize viewport for mobile

●Avoid long main-thread tasks 8 long tasks found

●Avoid non-composited animations 2 animated elements found

●Network Requests

●Network Round Trip Times 60 ms

●Server Backend Latencies 80 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 430 ms

●Avoid large layout shifts 2 layout shifts found

○INP breakdown

○User Timing marks and measures

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.

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
INTRODUCING SUB CLUB™ `div.component_wrapper > section#id_guestmvprewards_94658 > div.text > h4.title`

These are opportunities to improve keyboard navigation in your application.

Tables and lists

Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
PROTEIN POCKETS `div#menu-slider > div.swiper > ul.swiper-wrapper > li.component_menu`
$4.99 SUB OF THE DAY `div#menu-slider > div.swiper > ul.swiper-wrapper > li.component_menu`
$6.99 MEAL OF THE DAY `div#menu-slider > div.swiper > ul.swiper-wrapper > li.component_menu`
SANDWICHES `div#menu-slider > div.swiper > ul.swiper-wrapper > li.component_menu`
FRESH FIT® `div#menu-slider > div.swiper > ul.swiper-wrapper > li.component_menu`
SNACKS, SIDES & DESSERTS `div#menu-slider > div.swiper > ul.swiper-wrapper > li.component_menu`
PROTEIN BOWLS `div#menu-slider > div.swiper > ul.swiper-wrapper > li.component_menu`
WRAPS `div#menu-slider > div.swiper > ul.swiper-wrapper > li.component_menu`
BREAKFAST `div#menu-slider > div.swiper > ul.swiper-wrapper > li.component_menu`
SALADS `div#menu-slider > div.swiper > ul.swiper-wrapper > li.component_menu`
FRESH FIT FOR KIDS® `div#menu-slider > div.swiper > ul.swiper-wrapper > li.component_menu`
PERSONAL PIZZA `div#menu-slider > div.swiper > ul.swiper-wrapper > li.component_menu`
DRINKS `div#menu-slider > div.swiper > ul.swiper-wrapper > li.component_menu`

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

○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.

●Select elements have associated label elements.

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

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

●`[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>`).

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

●Touch targets have sufficient size and spacing.

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

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

●Uses ARIA roles only on compatible elements

●Identical links have the same purpose.

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements 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

○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

○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.

○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.

Best Practices

User Experience

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Aspect Ratio (Displayed)	Aspect Ratio (Actual)
div.media > ul > li.media_link > img.linkImage `div.media > ul > li.media_link > img.linkImage`	www.subway.com/~/icon/Flags/32x32/flag_usa.png	32 x 24 (1.33)	32 x 32 (1.00)

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 / Warning	Source
Unload event listeners are deprecated and will be removed.	js-cdn.dynatrace.com/jstag/15c157a40ab/bf69157qdp/66653261b3f39eb6_complete.js line 251, col 106

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.

Source	Description
sdk.apptentive.com/v1/sdk.min.js	`%c[Base] color: #ff414d; Namespace Collision, or, data is not in the correct format.`
www.subway.com/en-us line 119, col 0	`SyntaxError: Unexpected end of input`

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Map URL
www.subway.com/klyminKDzLp_AdLIplZ0/m3cONpw2zamSkX/WWdFNA/P2IQ/VBhmIG0B
/dist/RemoteOrder/js/components/customizer/index.14f2e228...	/dist/RemoteOrder/js/components/customizer/index.14f2e228...
www.subway.com/dist/RemoteOrder/js/app.js?v=6.22.177	www.subway.com/dist/RemoteOrder/js/app.js.map
www.subway.com/dist/RemoteOrder/js/main.js?v=6.22.177	www.subway.com/dist/RemoteOrder/js/main.js.map
cdn.jsdelivr.net/npm/launchdarkly-js-client-sdk@3.1.3/dist/ldclient.min.js	cdn.jsdelivr.net/npm/launchdarkly-js-client-sdk@3.1.3/dist/ldclient.min.js.map

●Uses HTTPS

●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

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●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 clickjacking with XFO or CSP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

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 destination	Link Text
www.subway.com/en-us/rewards	Learn More
cookiepedia.co.uk/giving-consent-to-cookies	More information

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

Crawling and Indexing

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Cookie & Ad Settings `div.footer_bottom_menu > ul > li > a.optanon-toggle-display`

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.

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

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`