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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.

22

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
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/glia_player_media1/pixel.gif?cb=6404874606&bqt=logs_by_h...0.0 ms57 B
/glia_player_media1/pixel.gif?cb=558046951&bqt=logs_by_ho...0.0 ms57 B
static.doubleclick.net/instream/ad_status.js900.0 s0 B
static.doubleclick.net/instream/ad_status.js900.0 s0 B
/gnetwork/interworks_donga/interworks_donga-1776874014.92...604800.0 s0 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:0.151733] map[node:map[boundingRect:map[bottom:793 height:248 left:16 right:396 top:545 width:380] lhId:page-24-DIV nodeLabel:갈팡질팡 트럼프에… “백악관 엉망진창” 참모들도 대혼돈 이란軍, 호르무즈 선박 3척 나포… 협상대신 벼랑끝 대치 “韓-베트남, 에너지안보 강화… path:1,HTML,1,BODY,3,DIV,1,DIV,0,MAIN,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV selector:div.topnews_wrap > div.topnews_sec > div.topnews_left > div.sub_headline_sec snippet:<div class="sub_headline_sec"> type:node] score:0.150221] map[node:map[boundingRect:map[bottom:98 height:24 left:283 right:313 top:74 width:29] lhId:page-29-LI nodeLabel:사회 path:1,HTML,1,BODY,3,DIV,0,HEADER,2,DIV,0,DIV,2,SECTION,0,NAV,0,UL,4,LI selector:section.gnb_sec > nav#gnb > ul.main_nav_wrap > li.nav_node snippet:<li class="nav_node " role="presentation"> type:node] score:0.001082 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://image.donga.com/font/inter-v12-latin-600.woff]]] type:subitems]] map[node:map[boundingRect:map[bottom:98 height:24 left:283 right:313 top:74 width:29] lhId:page-29-LI nodeLabel:사회 path:1,HTML,1,BODY,3,DIV,0,HEADER,2,DIV,0,DIV,2,SECTION,0,NAV,0,UL,4,LI selector:section.gnb_sec > nav#gnb > ul.main_nav_wrap > li.nav_node snippet:<li class="nav_node " role="presentation"> type:node] score:0.00043 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://image.donga.com/font/SpoqaHanSansNeo-Bold.woff2]]] type:subitems]]]
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:0.018226] map[node:map[boundingRect:map[bottom:838 height:823 left:0 right:412 top:15 width:412] lhId:page-32-BODY nodeLabel:body path:1,HTML,1,BODY selector:body snippet:<body style=""> type:node] score:0.018226]]
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:0.020656] map[node:map[boundingRect:map[bottom:732 height:641 left:21 right:391 top:91 width:371] lhId:page-33-DIV nodeLabel:donga.com asks for your consent to use your personal data to: Personalised adve… path:1,HTML,1,BODY,25,DIV,1,DIV selector:body > div.fc-consent-root > div.fc-dialog-container snippet:<div class="fc-dialog-container"> type:node] score:0.020656 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:156 height:40 left:106 right:306 top:116 width:201] lhId:page-36-IMG nodeLabel:Welcome to donga.com path:1,HTML,1,BODY,25,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,IMG selector:div.fc-header > div.fc-header > div.fc-header-image-container > img.fc-header-image snippet:<img class="fc-header-image" alt="Welcome to donga.com" src="https://lh3.googleusercontent.com/t8uG-MEER22YL5Gwcw1mIxoN9K-VQqisrYRRsPUc…"> type:node]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/opensans/v40/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2]]] type:subitems]]]

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.

URLEst Savings
image.donga.com/font/SpoqaHanSansNeo-Medium.woff21.6 s
image.donga.com/font/SpoqaHanSansNeo-Bold.woff21.5 s
image.donga.com/font/SpoqaHanSansNeo-Regular.woff21.4 s
fonts.gstatic.com/s/materialicons/v145/flUhRq6tzZclQEJ-Vdg-IuiaDsNcIhQ8tQ.woff270 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff265 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff250 ms
/s/opensans/v40/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu...50 ms
fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff245 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:57.891 source:map[column:35 line:288 type:source-location url:https://image.donga.com/donga_v2/js/home.js?t=202604010 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:77.816 source:map[type:text value:[unattributed]]] map[reflowTime:4.358 source:map[column:9506 line:12 type:source-location url:https://image.donga.com/donga/js.v.5.0/swiper-bundle.min.js?t=20260414 urlProvider:network]] map[reflowTime:10.213 source:map[column:449 line:19 type:source-location url:/_/mss/boq-content-ads-contributor/_/js/k=boq-content-ads-contributor.ContributorServingResponseClientJs.en_US.pSJko196IH0.es5.O/d=1/exm=kernel_loader,loader_js_executable/ed=1/rs=AJlcJMwW9cECbTFkq4PRqOWQ0smSYbz1fw/m=web_iab_tcf_v2_wall_executable urlProvider:network]] map[reflowTime:0.075 source:map[column:67 line:212 type:source-location url:https://image.donga.com/donga_v2/js/home.js?t=202604010 urlProvider:network]] map[reflowTime:4.703 source:map[column:4447 line:12 type:source-location url:https://image.donga.com/donga/js.v.5.0/swiper-bundle.min.js?t=20260414 urlProvider:network]] map[reflowTime:40.549 source:map[column:49577 line:1 type:source-location url:https://image.donga.com/donga/js.v.5.0/jquery-3.7.0.min.js?t=20260414 urlProvider:network]] map[reflowTime:7.989 source:map[column:49599 line:1 type:source-location url:https://image.donga.com/donga/js.v.5.0/jquery-3.7.0.min.js?t=20260414 urlProvider:network]] map[reflowTime:0.291 source:map[column:48537 line:12 type:source-location url:https://image.donga.com/donga/js.v.5.0/swiper-bundle.min.js?t=20260414 urlProvider:network]] map[reflowTime:1.742 source:map[column:40 line:197 type:source-location url:https://image.donga.com/donga_v2/js/home.js?t=202604010 urlProvider:network]] map[reflowTime:7.712 source:map[column:41098 line:12 type:source-location url:https://image.donga.com/donga/js.v.5.0/swiper-bundle.min.js?t=20260414 urlProvider:network]]]

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
“3번 도전해 당첨” 서울 도시텃밭 열풍 div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_News2/133791884.4.thumb.jpg76.2 KiB71.5 KiB
행인들 사이로 ‘부아앙’… 오토바이에 사망 年388명 div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_News2/133795706.1.thumb.jpg58.9 KiB54.2 KiB
신운세 li.swiper-slide > a > div.img_area > img
dimg.donga.com/carriage/NEWS/images/home_left_banner2/69c9e44e1ff0d2738064.jpg52.8 KiB38.7 KiB
‘운휴’ 나붙은 석화산단 “전쟁뒤 가치 재확인, 기간산업 지켜야” div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_News2/133792064.4.thumb.jpg40.0 KiB36.0 KiB
“韓-베트남, 에너지안보 강화-공급망 안정 협력” div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_News2/133794966.4.thumb.jpg38.5 KiB34.6 KiB
늑구 먹이 맨바닥에 뒀다고…‘밥 그릇’ 요구에 오월드 측 해명은 div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_News2/133794190.1.thumb.jpg37.5 KiB33.7 KiB
갈팡질팡 트럼프에… “백악관 엉망진창” 참모들도 대혼돈 div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_News2/133792122.5.thumb.jpg35.0 KiB31.5 KiB
독자 라운지 li.swiper-slide > a > div.img_area > img
dimg.donga.com/carriage/NEWS/images/home_left_banner2/68db83000c4ea1e072b.jpg41.7 KiB30.6 KiB
소리없는 충격파, 이란 古都 할퀴다 div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_News2/133795601.2.thumb.jpg70.1 KiB29.6 KiB
‘23명 사망’ 아리셀 대표, 2심 11년 줄어 징역 4년 div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_News2/133792201.4.thumb.jpg29.0 KiB26.1 KiB
K테크 글로벌 리더스 li.swiper-slide > a > div.img_area > img
dimg.donga.com/carriage/NEWS/images/home_left_banner2/6982957c1862d2738275.jpg45.6 KiB24.9 KiB
스마트폰에 붙이면 ‘2D-3D’ 자유자재로 전환 div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_News2/133795459.1.thumb.jpg22.5 KiB20.2 KiB
LG전자 ‘류재철號 뉴엔진’ 본격화… CEO가 기술회의 직접 챙긴다 div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_News2/133795276.1.thumb.jpg16.7 KiB15.0 KiB
“득점 욕심보다 팀 퍼스트”… 한국무대 5시즌 연속 리바운드 1위 div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Main_Editor_Recommand/133792137.5.thumb.jpg18.4 KiB13.6 KiB
鄭, 격전지 영남 5곳 훑어…‘열흘 방미’ 張, 서울외 3곳만 찾아 ul#swiper-wrapper-9dd539d6e9a84d35 > li.swiper-slide > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_Top2/133795696.1.thumb.jpg36.6 KiB11.5 KiB
신문광고컬렉션 li.login_bottom_node > a > div.img_area > img
dimg.donga.com/carriage/NEWS/images/home_right_banner2/68de20d9129fd273828a.jpg27.6 KiB8.9 KiB
우아한 li.login_bottom_node > a > div.img_area > img
dimg.donga.com/carriage/NEWS/images/home_right_banner2/68d4e5252051d273828a.jpg26.0 KiB7.3 KiB
‘늑구 탈출’ 재발 없게… 동물원 안전 관리-복지 강화 div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_News2/133789032.1.thumb.jpg47.8 KiB7.2 KiB
트럼프 도움 필요한 우크라, ‘돈바스→도니랜드’ 개명 제안 div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Main_Editor_Recommand/133795482.2.thumb.jpg10.3 KiB6.3 KiB
“3개월 육식으로 내장지방 90% 제거”…사실일까? div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_News2/133790948.3.thumb.jpg43.7 KiB5.3 KiB
CSIS “美, 이란戰에 미사일 절반 소진… 몇년간 中 등 적대국에 맞설 물량 부족” div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_Issue_Group/133788966.1.thumb.jpg36.9 KiB5.1 KiB
‘성공의 80%는 출석’[횡설수설/장원재] li.swiper-slide > a > div.thumb > img
/a/120/120/90/1/carriage/NEWS/content/NEWS/journalist/202...6.8 KiB5.0 KiB
AI 무기화 또 불붙인 팔란티어 “日-獨 재무장 필요” 주장까지 div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_News2/133795629.1.thumb.jpg31.5 KiB4.3 KiB
정주영회장 집무실 ‘계동 15층’에 입성한 정의선 div.news_card > header.news_head > a > img
dimg.donga.com/wps/NEWS/FEED/Main_Editor_Recommand/133792653.5.thumb.jpg6.7 KiB4.1 KiB

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:2308.1820009765624 label:Time to first byte subpart:timeToFirstByte] map[duration:14.0349990234375 label:Resource load delay subpart:resourceLoadDelay] map[duration:5229.599 label:Resource load duration subpart:resourceLoadDuration] map[duration:19.858 label:Element render delay subpart:elementRenderDelay]]
lhId: page-14-IMG
nodeLabel: 鄭, 격전지 영남 5곳 훑어…‘열흘 방미’ 張, 서울외 3곳만 찾아
path: 1,HTML,1,BODY,3,DIV,1,DIV,0,MAIN,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,ARTICLE,0,DIV,0,UL,0,LI,0,A,0,IMG
selector: ul#swiper-wrapper-9dd539d6e9a84d35 > li.swiper-slide > a > img
snippet: <img src="https://dimg.donga.com/wps/NEWS/FEED/Donga_Home_Top2/133795696.1.thumb.jpg" alt="鄭, 격전지 영남 5곳 훑어…‘열흘 방미’ 張, 서울외 3곳만 찾아">

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-14-IMG
nodeLabel: 鄭, 격전지 영남 5곳 훑어…‘열흘 방미’ 張, 서울외 3곳만 찾아
path: 1,HTML,1,BODY,3,DIV,1,DIV,0,MAIN,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,ARTICLE,0,DIV,0,UL,0,LI,0,A,0,IMG
selector: ul#swiper-wrapper-9dd539d6e9a84d35 > li.swiper-slide > a > img
snippet: <img src="https://dimg.donga.com/wps/NEWS/FEED/Donga_Home_Top2/133795696.1.thumb.jpg" alt="鄭, 격전지 영남 5곳 훑어…‘열흘 방미’ 張, 서울외 3곳만 찾아">

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
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
image.donga.com/donga/js.v.5.0/jquery-ui.min.js?t=2026041482.1 KiB408 ms
image.donga.com/donga/js.v.5.0/jquery-3.7.0.min.js?t=2026041434.7 KiB408 ms
image.donga.com/donga/js.v.1.0/GAbuilder.js?t=2024091114.0 KiB
image.donga.com/donga/js.v.5.0/swiper-bundle.min.js?t=2026041446.4 KiB
image.donga.com/donga/js/kakao-latest.min.js35.3 KiB
image.donga.com/donga_v2/css/style.css?t=2026041429.1 KiB408 ms
image.donga.com/donga_v2/css/home.css?t=2026041422.6 KiB
image.donga.com/donga/js.v.1.0/jquery-cookie.js?t=202604141.6 KiB
image.donga.com/donga/js.v.1.0/snsShare.js?t=202604149.0 KiB408 ms
image.donga.com/js/kakao.link.js1.1 KiB
image.donga.com/donga/css.v.2.0/slick.css?t=20260414743 B
image.donga.com/donga_v2/css/layout.css?t=2026041413.9 KiB
image.donga.com/donga/css.v.2.0/swiper-bundle.min.css?t=202604145.5 KiB408 ms
image.donga.com/donga/js.v.5.0/slick.min.js?t=2026041412.8 KiB
image.donga.com/donga_v1/css/base.css?t=202604142.1 KiB1.8 s

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: 1.6 s
URLTime Spent
donga.com/1.6 s
www.donga.com/0.0 ms

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
갈팡질팡 트럼프에… “백악관 엉망진창” 참모들도 대혼돈 이란軍, 호르무즈 선박 3척 나포… 협상대신 벼랑끝 대치 “韓-베트남, 에너지안보 강화… div.topnews_wrap > div.topnews_sec > div.topnews_left > div.sub_headline_sec
0.150
donga.com asks for your consent to use your personal data to: Personalised adve… body > div.fc-consent-root > div.fc-dialog-container
0.021
body body
0.018
사회 section.gnb_sec > nav#gnb > ul.main_nav_wrap > li.nav_node
0.001
사회 section.gnb_sec > nav#gnb > ul.main_nav_wrap > li.nav_node
0.000

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

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: 410 ms 71.7 KiB
URLTransfer SizeEst Savings
image.donga.com/donga_v2/css/home.css?t=2026041422.5 KiB19.9 KiB
image.donga.com/donga_v2/css/style.css?t=2026041429.0 KiB16.5 KiB
.fc-consent-root .fc-dialog-container.fc-fullscreen { height: 100% !important; … } …16.3 KiB14.0 KiB
image.donga.com/donga_v2/css/layout.css?t=2026041413.8 KiB11.0 KiB
player.gliacloud.com/p/embed/gc-instream-plyr.css?v=0.4.18415.4 KiB10.3 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: 410 ms 1.0 MiB
URLTransfer SizeEst Savings
/pagead/managed/js/adsense/m202604200101/show_ads_impl_fy...177.5 KiB148.9 KiB
/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31...187.7 KiB128.4 KiB
player.gliacloud.com/p/embed/gc-instream-plyr.js?v=0.4.184252.2 KiB127.2 KiB
imasdk.googleapis.com/js/sdkloader/ima3.js149.5 KiB79.9 KiB
anymind360.com/js/19464/prebid_2026_1_30_6_13_22.js161.8 KiB73.7 KiB
image.donga.com/donga/js.v.5.0/jquery-ui.min.js?t=2026041482.0 KiB73.1 KiB
www.googletagmanager.com/gtm.js?id=GTM-PQ3GKRX&l=gliaDataLayer&cb=177689120.4 KiB67.1 KiB
www.googletagmanager.com/gtag/js?id=G-6Z5MY0NF20&cx=c&gtm=4e64k1h1158.5 KiB63.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-PCVCHHT132.4 KiB62.1 KiB
/pagead/js/adsbygoogle.js?client=ca-pub-686401511599416754.1 KiB43.6 KiB
/pagead/js/adsbygoogle.js?client=ca-pub-686401511599416754.1 KiB43.6 KiB
fundingchoicesmessages.google.com/i/106061858?ers=368.8 KiB36.2 KiB
anymind360.com/js/19464/ats.js47.1 KiB30.8 KiB
pagead2.googlesyndication.com/pagead/js/adsbygoogle.js54.1 KiB27.0 KiB
image.donga.com/donga/js.v.5.0/swiper-bundle.min.js?t=2026041446.3 KiB25.4 KiB
image.donga.com/donga/js/kakao-latest.min.js35.2 KiB23.8 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
www.donga.com/2.6 s349 ms9.0 ms
Unattributable1.5 s167 ms0.0 ms
image.donga.com/donga/js.v.5.0/swiper-bundle.min.js?t=202604141.4 s329 ms12 ms
player.gliacloud.com/p/embed/gc-instream-plyr.js?v=0.4.1841.1 s873 ms87 ms
image.donga.com/donga_v2/js/home.js?t=202604010709 ms383 ms2.1 ms
anymind360.com/js/19464/prebid_2026_1_30_6_13_22.js429 ms339 ms34 ms
/f/AGSKWxV0KcFi_im6svpOcaPXgCYyihg0towK7sr9WFBlvwDi7bFl54...429 ms289 ms40 ms
player.gliacloud.com/player/inerworks_donga_mobile304 ms278 ms17 ms
/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31...256 ms202 ms49 ms
www.googletagmanager.com/gtag/js?id=G-6Z5MY0NF20&cx=c&gtm=4e64k1h1225 ms166 ms58 ms
fundingchoicesmessages.google.com/i/106061858?ers=3220 ms201 ms14 ms
www.youtube.com/s/player/1bb6ee63/www-widgetapi.vflset/www-widgetapi.js207 ms173 ms2.9 ms
www.googletagmanager.com/gtm.js?id=GTM-PCVCHHT188 ms152 ms31 ms
imasdk.googleapis.com/js/sdkloader/ima3.js185 ms128 ms43 ms
/pagead/managed/js/adsense/m202604200101/show_ads_impl_fy...126 ms77 ms39 ms
www.googletagmanager.com/gtm.js?id=GTM-PQ3GKRX&l=gliaDataLayer&cb=177689114 ms87 ms26 ms
image.donga.com/donga/js.v.5.0/postscribe.min.js99 ms73 ms3.0 ms
/pagead/js/adsbygoogle.js?client=ca-pub-686401511599416797 ms40 ms56 ms
image.donga.com/donga/js.v.5.0/jquery-3.7.0.min.js?t=2026041483 ms51 ms8.8 ms
pagead2.googlesyndication.com/pagead/js/adsbygoogle.js70 ms55 ms13 ms
securepubads.g.doubleclick.net/tag/js/gpt.js69 ms59 ms10.0 ms
anymind360.com/js/19464/ats.js60 ms46 ms14 ms
image.donga.com/donga/js.v.5.0/jquery-ui.min.js?t=2026041459 ms32 ms26 ms
pagead2.googlesyndication.com/omsdk/releases/live/omweb-v1.js58 ms54 ms3.0 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 Evaluation4.7 s
Style & Layout2.4 s
Other2.4 s
Script Parsing & Compilation636 ms
Rendering537 ms
Parse HTML & CSS174 ms
Garbage Collection78 ms

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 9.6 KiB
URLTransfer SizeEst Savings
image.donga.com/donga_v2/css/style.css?t=2026041429.1 KiB3.6 KiB
image.donga.com/donga_v2/css/home.css?t=2026041422.6 KiB3.4 KiB
image.donga.com/donga_v2/css/layout.css?t=2026041413.9 KiB2.6 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 10.3 KiB
URLTransfer SizeEst Savings
image.donga.com/donga/js.v.1.0/GAbuilder.js?t=2024091113.9 KiB5.8 KiB
image.donga.com/donga/js.v.1.0/snsShare.js?t=202604148.8 KiB4.5 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.

URLTransfer Size
www.youtube.com/s/player/1bb6ee63/player_embed_es6.vflset/en_US/base.js436.0 KiB
/s/_/ytembeds/_/js/k=ytembeds.base.en_US.5f0apfZzpOA.2021...317.0 KiB
imasdk.googleapis.com/js/core/bridge3.758.1_en.html?gdpr=1270.9 KiB
player.gliacloud.com/p/embed/gc-instream-plyr.js?v=0.4.184252.6 KiB
/pagead/managed/js/gpt/m202604200101/pubads_impl.js?cb=31...187.7 KiB
image.donga.com/font/SpoqaHanSansNeo-Bold.woff2179.6 KiB
/pagead/managed/js/adsense/m202604200101/show_ads_impl_fy...177.5 KiB
image.donga.com/font/SpoqaHanSansNeo-Regular.woff2176.6 KiB
image.donga.com/font/SpoqaHanSansNeo-Medium.woff2176.0 KiB
i.ytimg.com/vi/zBzqcIRzf20/maxresdefault.jpg170.6 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
鄭, 격전지 영남 5곳 훑어…‘열흘 방미’ 張, 서울외 3곳만 찾아 ul#swiper-wrapper-9dd539d6e9a84d35 > li.swiper-slide > a > img
dimg.donga.com/wps/NEWS/FEED/Donga_Home_Top2/133795696.1.thumb.jpg
고양이 눈 div.forum_top > div.thumb > a > img
dimg.donga.com/carriage/NEWS/images/donga_main_insight/6932eca3254fd2738248.jpg
사진기자의 사談진談 div.forum_top > div.thumb > a > img
dimg.donga.com/carriage/NEWS/images/donga_main_insight/69e8f57426bdd2738249.jpg
이은화의 미술시간 div.forum_top > div.thumb > a > img
dimg.donga.com/carriage/NEWS/images/donga_main_insight/691df7ad09ddd2738248.jpg
염복규의 경성, 서울의 기원 div.forum_top > div.thumb > a > img
dimg.donga.com/carriage/NEWS/images/donga_main_insight/68ecc2c61ac9d2738241.jpg
‘성공의 80%는 출석’[횡설수설/장원재] li.swiper-slide > a > div.thumb > img
/a/120/120/90/1/carriage/NEWS/content/NEWS/journalist/202...
[오늘과 내일/홍수영]‘李대통령 SNS 공방’으로 본 이 시대 싸움법 li.swiper-slide > a > div.thumb > img
/a/120/120/90/1/carriage/NEWS/content/NEWS/journalist/202...
보이지 않는 전쟁, 외국 정보작전에 대응할 때[기고/로버트 요크] li.swiper-slide > a > div.thumb > img
dimg.donga.com/a/120/120/90/1/wps/NEWS/IMAGE/2026/04/22/133795195.1.jpg
[고양이 눈]분홍과 초록 사이 li.swiper-slide > a > div.thumb > img
/a/120/120/90/1/carriage/NEWS/content/NEWS/journalist/202...
고려사이버대학교 THE CYBER UNIVERSITY OF KOREA div.inner > div.da_corp_foot > a.sponsor > img
image.donga.com/donga_v1/images/logo_sponsor1.png
div.inner > div.da_corp_foot > a > img div.inner > div.da_corp_foot > a > img
image.donga.com/adma/donga/191018_trafficchecking_dot.gif

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

●Optimize DOM size
●Optimize viewport for mobile
●User Timing marks and measures 5 user timings
●Avoid long main-thread tasks 20 long tasks found
●Avoid non-composited animations 2 animated elements found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 290 ms
●Server Backend Latencies 290 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 300 ms
○INP breakdown
82

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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
단독 div.news_body > h4.tit > a > span.is_scoop
Powered by div.InstreamDom_root_21jVv > div.InstreamDom_footer_iL5Q_ > div.InstreamDom_poweredBy_32RQo > div
GliaStudios div.InstreamDom_root_21jVv > div.InstreamDom_footer_iL5Q_ > div.InstreamDom_poweredBy_32RQo > div
횡설수설 ul#swiper-wrapper-71b5cc6963e3ff5c > li.swiper-slide > a > p.cate
정치를 부탁해 div.sub_headline_left > div.news_card > div.news_body > p.cate
단독 div.news_body > h4.tit > a > span.is_scoop
자동차팀의 비즈워치 li > div.news_card > div.news_body > p.cate
단독 div.news_body > h4.tit > a > span.is_scoop
지금, 여기 li > div.news_card > div.news_body > p.cate
‘살림꾼 용병’ LG 마레이 li > div.news_card > div.news_body > p.cate
바디플랜 li > div.news_card > div.news_body > p.cate
트렌디깅 li > div.news_card > div.news_body > p.cate
단독 div.news_body > h4.tit > a > span.is_scoop
회원전용 div#poll_content > div.poll_wrap > div.poll_form_area > span.member_only
구독 ul#swiper-wrapper-5a799b4c1e5133a5 > li.swiper-slide > div.btn_area > button.btn_subscribe
Learn more div.fc-dialog-content > div.fc-dialog-scrollable-content > button.fc-faq-header > span.fc-faq-label
List of partners. div.fc-dialog-scrollable-content > div.fc-footer > p > a.fc-vendors-list-dialog

These are opportunities to improve the legibility of your content.

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
갈팡질팡 트럼프에… “백악관 엉망진창” 참모들도 대혼돈 div.sub_headline_sec > div.news_card > div.news_body > h4.tit
교황 “프란치스코 1주기… 그의 유산 이어갈 것” div.notseen_news_left > article.news_card > div.news_body > h4.tit
150억대 건물을…MC몽·노홍철, ‘1박2일’ 연결고리 무섭네 ul#swiper-wrapper-1075649e2cae8ea91 > li.swiper-slide > a > h5.tit

These are opportunities to improve keyboard navigation in your application.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.da_corp_area > div.inner > div.da_corp_foot > a div.da_corp_area > div.inner > div.da_corp_foot > a

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.

Tables and lists

Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
1 / 1 div.top_headline_sec > article.news_card > div.news_head_wrap > ul#swiper-wrapper-9dd539d6e9a84d35
1 / 4 div.sub_headline_right > div.banner_adswipe > div.right_banner_rolling > ul#swiper-wrapper-c54556c810d4d2379
사설 OECD 가입 30년… 12년째 넘지 못한 4만 달러 벽 사설 인도 위 ‘무법 오토바이’… 보행자에게도, 본인에게도 ‘흉기’ 사설… div.aside_sec_group > div.aside_opinion_sec > div.aside_opinion_cont > ul#swiper-wrapper-71b5cc6963e3ff5c
1 / 4 div.aside_opinion_sec > div.banner_adswipe > div.login_bottom_wrap > ul#swiper-wrapper-d1c35f96c97d8571
150억대 건물을…MC몽·노홍철, ‘1박2일’ 연결고리 무섭네 송승현, 연예계 은퇴→임신 발표…아빠 쏙 빼닮은 2세 “2009년생부터 평생 담… div.main_inner > section.enter_sport_sec > div.enter_sport_cont > ul#swiper-wrapper-1075649e2cae8ea91
고양이 눈 구독 분홍과 초록 사이 9시간 전 사진기자의 사談진談 구독 우주로 간 구닥다리 디지털 카메라 9시간 전 이은화의 미술시간 구독 향기… section.donga_forum > div.forum_cont > div.forum_area > ul#swiper-wrapper-5a799b4c1e5133a5
주간동아 [영상] “ETF 투자, 코스피와 반도체 추종하는 게 핵심” 신동아 “지금 대구에 필요한 건 살림꾼…나를 ‘대구 도약 마중물’로… div.main_inner > section.dmagazine_sec > div.dmagazine_cont > ul#swiper-wrapper-343411222c2eb6ae

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

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
head > meta head > meta

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Go to slide 1 div.banner_adswipe > div.right_banner_rolling > div.pagination > span.swiper-pagination-bullet
Go to slide 2 div.banner_adswipe > div.right_banner_rolling > div.pagination > span.swiper-pagination-bullet
Go to slide 3 div.banner_adswipe > div.right_banner_rolling > div.pagination > span.swiper-pagination-bullet
Go to slide 4 div.banner_adswipe > div.right_banner_rolling > div.pagination > span.swiper-pagination-bullet
Go to slide 1 div.banner_adswipe > div.login_bottom_wrap > div.pagination > span.swiper-pagination-bullet
Go to slide 2 div.banner_adswipe > div.login_bottom_wrap > div.pagination > span.swiper-pagination-bullet
Go to slide 3 div.banner_adswipe > div.login_bottom_wrap > div.pagination > span.swiper-pagination-bullet
Go to slide 4 div.banner_adswipe > div.login_bottom_wrap > div.pagination > span.swiper-pagination-bullet
Go to slide 1 div.notseen_news_cont > div.notseen_swiper_wrap > div.pagination > span.swiper-pagination-bullet
Go to slide 2 div.notseen_news_cont > div.notseen_swiper_wrap > div.pagination > span.swiper-pagination-bullet

These items highlight common accessibility best practices.

○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
●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
●`[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
●Form elements have associated labels
●`button`, `link`, and `menuitem` elements have accessible names
●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
●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
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●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
●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.
○`[accesskey]` values are unique
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○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
○Links are distinguishable without relying on color.
○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
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○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.
77

Best Practices

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
Topics
anymind360.com/js/19464/prebid_2026_1_30_6_13_22.js line 74, col 1182
Specifying overflow: visible on img, video and canvas tags may cause them to produce visual content outside of the element bounds. See https://github.com/WICG/shared-element-transitions/blob/main/debugging_overflow_on_images.md.
/_/mss/boq-content-ads-contributor/_/js/k=boq-content-ads... line 19, col 449

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.donga.com/
Access to fetch at 'https://ad.ad-stir.com/prebid' from origin 'https://www.donga.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
www.donga.com/
Attestation check for Protected Audience on https://grid-bidder.criteo.com failed.
www.donga.com/
Attestation check for Protected Audience on https://hbopenbid.pubmatic.com failed.
www.donga.com/
Attestation check for Protected Audience on https://htlb.casalemedia.com failed.
ad.ad-stir.com/prebid
Failed to load resource: net::ERR_FAILED
●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
●Displays images with correct aspect ratio
●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
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
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`

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