Lighthouse Mobile

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
peraichi.com/img/top/main-slide-3-pc.png	0.0 ms	2.6 MiB
peraichi.com/img/top/main-slide-2-pc.png	0.0 ms	2.1 MiB
peraichi.com/img/top/main-slide-5-pc.png	0.0 ms	1.5 MiB
peraichi.com/img/top/main-slide-1-pc.png	0.0 ms	1.5 MiB
peraichi.com/img/top/main-slide-6-pc.png	0.0 ms	1.1 MiB
peraichi.com/img/top/sp_1.png	0.0 ms	941.2 KiB
peraichi.com/img/top/3.gif	0.0 ms	668.5 KiB
peraichi.com/img/top/main-slide-4-pc.png	0.0 ms	606.7 KiB
peraichi.com/img/top/1.gif	0.0 ms	601.3 KiB
peraichi.com/img/top/main-slide-3-sp.png	0.0 ms	570.6 KiB
peraichi.com/img/top/sp_3.png	0.0 ms	429.9 KiB
peraichi.com/img/top/sp_2.png	0.0 ms	413.7 KiB
peraichi.com/img/top/main-slide-2-sp.png	0.0 ms	385.0 KiB
peraichi.com/img/top/main-slide-5-sp.png	0.0 ms	372.2 KiB
peraichi.com/img/top/main-slide-6-sp.png	0.0 ms	362.9 KiB
peraichi.com/img/top/main-slide-1-sp.png	0.0 ms	357.5 KiB
peraichi.com/img/top/temp5_hotel_sm.png	0.0 ms	182.7 KiB
peraichi.com/img/top/temp4_netshop_sm.png	0.0 ms	177.7 KiB
peraichi.com/img/top/temp2_beauty_sm.png	0.0 ms	168.2 KiB
peraichi.com/css/common.css?1776753462	0.0 ms	163.7 KiB
peraichi.com/img/top/temp7_portfolio_sm.png	0.0 ms	149.9 KiB
peraichi.com/img/top/main-slide-4-sp.png	0.0 ms	131.3 KiB
peraichi.com/img/top/temp2_pc.png	0.0 ms	124.1 KiB
peraichi.com/img/top/temp7_pc.png	0.0 ms	114.1 KiB
peraichi.com/img/top/temp1_cake_sm.png	0.0 ms	110.0 KiB
peraichi.com/img/top/temp5_pc.png	0.0 ms	100.6 KiB
peraichi.com/img/top/temp5_sp.png	0.0 ms	87.7 KiB
/signals/config/3806078839613932?v=2.9.303&r=stable&domai...	1200.0 s	97.0 KiB
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.6 KiB
peraichi.com/img/top/temp8_pc.png	0.0 ms	81.3 KiB
peraichi.com/img/top/temp7_sm.png	0.0 ms	75.7 KiB
peraichi.com/img/top/temp3_pc.png	0.0 ms	75.3 KiB
peraichi.com/img/top/temp1_pc.png	0.0 ms	73.3 KiB
peraichi.com/img/top/temp2_sm.png	0.0 ms	72.6 KiB
peraichi.com/img/top/temp4_pc.png	0.0 ms	72.0 KiB
peraichi.com/img/top/temp3_sm.png	0.0 ms	71.1 KiB
connect.facebook.net/ja_JP/bundle/sdk.js/	1200.0 s	77.9 KiB
peraichi.com/img/top/temp8_sp.png	0.0 ms	66.9 KiB
peraichi.com/img/top/temp2_sp.png	0.0 ms	63.0 KiB
peraichi.com/img/top/temp4_sm.png	0.0 ms	62.6 KiB
peraichi.com/img/top/temp1_sp.png	0.0 ms	53.5 KiB
peraichi.com/img/top/2.gif	0.0 ms	53.1 KiB
peraichi.com/img/top/temp3_sp.png	0.0 ms	51.1 KiB
peraichi.com/img/top/img_member_milestone.png	0.0 ms	50.4 KiB
peraichi.com/img/top/temp7_sp.png	0.0 ms	50.2 KiB
peraichi.com/img/top/temp6_form_sm.png	0.0 ms	48.3 KiB
peraichi.com/img/top/temp4_sp.png	0.0 ms	45.2 KiB
peraichi.com/js/front_all.js?1776753345	0.0 ms	43.8 KiB
peraichi.com/img/top/temp1_sm.png	0.0 ms	43.0 KiB
/signals/config/1019818098525170?v=2.9.303&r=stable&domai...	1200.0 s	46.7 KiB
peraichi.com/img/top/feature3_2.png	0.0 ms	39.9 KiB
peraichi.com/img/top/temp6_pc.png	0.0 ms	32.8 KiB
peraichi.com/img/top/feature2_1.png	0.0 ms	30.6 KiB
peraichi.com/img/top/feature3_1.png	0.0 ms	30.3 KiB
cdn.mxpnl.com/libs/mixpanel-2-latest.min.js	600.0 s	31.7 KiB
peraichi.com/img/top/university_wifi.png	0.0 ms	25.2 KiB
peraichi.com/img/top/temp6_sp.png	0.0 ms	24.6 KiB
platform.twitter.com/widgets.js	1800.0 s	27.3 KiB
peraichi.com/img/top/feature3_3.png	0.0 ms	22.4 KiB
peraichi.com/img/top/feature_2.png	0.0 ms	22.0 KiB
peraichi.com/img/top/temp6_sm.png	0.0 ms	20.4 KiB
peraichi.com/img/top/feature_3.png	0.0 ms	19.2 KiB
peraichi.com/js/libs/slick.min.js	0.0 ms	17.2 KiB
peraichi.com/img/top/feature_1.png	0.0 ms	16.7 KiB
www.google-analytics.com/analytics.js	7200.0 s	20.9 KiB
/signals/config/1506882067186661?v=2.9.303&r=stable&domai...	1200.0 s	17.0 KiB
www.rentracks.jp/js/itp/rt.track.js?t=1776893227608	0.0 ms	14.7 KiB
/signals/config/1569870679986757?v=2.9.303&r=stable&domai...	1200.0 s	16.4 KiB
peraichi.com/img/top/URL.png	0.0 ms	14.0 KiB
peraichi.com/img/top/top_icon_shopping_cart_bg-white.svg	0.0 ms	12.2 KiB
s.yimg.jp/images/listing/tool/cv/ytag.js	600.0 s	11.8 KiB
scripts.clarity.ms/0.8.59/clarity.js	86400.0 s	26.2 KiB
statics.a8.net/a8sales/a8sales.js	0.0 ms	9.7 KiB
static.hotjar.com/c/hotjar-2705207.js?sv=6	60.0 s	6.2 KiB
connect.facebook.net/ja_JP/sdk.js#xfbml=1&version=v2.8&appId=1495277324077059	1200.0 s	5.1 KiB
peraichi.com/js/libs/remodal.min.js?1776753345	0.0 ms	3.8 KiB
peraichi.com/js/common.js?1776753345	0.0 ms	3.3 KiB
r.moshimo.com/af/r/maftag.js	0.0 ms	2.8 KiB
peraichi.com/js/page_top.js	0.0 ms	2.7 KiB
peraichi.com/img/top/top_icon_calendar.svg	0.0 ms	2.6 KiB
peraichi.com/js/libs/ofi.min.js	0.0 ms	2.2 KiB
peraichi.com/img/top/2.png	0.0 ms	2.1 KiB
peraichi.com/img/top/3.png	0.0 ms	1.9 KiB
peraichi.com/css/slick.css?1776753344	0.0 ms	1.1 KiB
peraichi.com/images/top_settings.png	604800.0 s	8.7 KiB
peraichiapp.com/js/libs/google_tag_manager.js	0.0 ms	697 B
peraichi.com/images/logo.svg	604800.0 s	6.8 KiB
peraichi.com/img/top/1.png	0.0 ms	557 B
peraichi.com/images/top_create_page.png	604800.0 s	5.1 KiB
peraichi.com/images/top_txt_free_for_one_month.png	604800.0 s	5.1 KiB
peraichi.com/images/top_html_css.png	604800.0 s	4.7 KiB
peraichi.com/images/top_scroll_inline.png	604800.0 s	3.3 KiB
/tr/?id=1019818098525170&ev=PageView&dl=https%3A%2F%2Fper...	0.0 ms	16 B
/tr/?id=3806078839613932&ev=PageView&dl=https%3A%2F%2Fper...	0.0 ms	16 B
/tr/?id=3806078839613932&ev=PageView&dl=https%3A%2F%2Fper...	0.0 ms	16 B
/tr/?id=1569870679986757&ev=PageView&dl=https%3A%2F%2Fper...	0.0 ms	16 B
/tr/?id=1506882067186661&ev=PageView&dl=https%3A%2F%2Fper...	0.0 ms	16 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:0.227974] map[node:map[boundingRect:map[bottom:1764 height:1023 left:0 right:412 top:741 width:412] lhId:page-27-DIV nodeLabel:What's Peraichi? ペライチとは？ペライチは初期費用・サーバー維持費0円！誰もがカンタンに作れるホームページ作成ツールです Webサイトの… path:1,HTML,1,BODY,3,DIV,2,DIV selector:body._fallback_style > div.content > div.p-top-new-overview snippet:<div class="p-top-new-overview"> type:node] score:0.209433] map[node:map[boundingRect:map[bottom:741 height:670 left:18 right:394 top:71 width:376] lhId:page-26-DIV nodeLabel:初期費用0円、ページ完成までわずか30分ホームページ作成はペライチ 1 2 3 4 5 6 いますぐ始める path:1,HTML,1,BODY,3,DIV,0,DIV,0,DIV selector:body._fallback_style > div.content > div.p-top-new-mainvisual > div.p-top-new-mainvisual__container snippet:<div class="p-top-new-mainvisual__container"> type:node] score:0.018541 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://maxcdn.bootstrapcdn.com/font-awesome/4.6.3/fonts/fontawesome-webfont.woff2?v=4.6.3]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/notosansjp/v56/-F62fjtqLzI2JPCgQBnw7HFowwII2lcnk-AFfrgQrvWXpdFg3KXxAMsKMbdN.115.woff2]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/notosansjp/v56/-F62fjtqLzI2JPCgQBnw7HFowwII2lcnk-AFfrgQrvWXpdFg3KXxAMsKMbdN.119.woff2]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/notosansjp/v56/-F62fjtqLzI2JPCgQBnw7HFYwQgP-FVthw.woff2]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/notosansjp/v56/-F62fjtqLzI2JPCgQBnw7HFowwII2lcnk-AFfrgQrvWXpdFg3KXxAMsKMbdN.117.woff2]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/notosansjp/v56/-F62fjtqLzI2JPCgQBnw7HFowwII2lcnk-AFfrgQrvWXpdFg3KXxAMsKMbdN.114.woff2]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/notosansjp/v56/-F62fjtqLzI2JPCgQBnw7HFowwII2lcnk-AFfrgQrvWXpdFg3KXxAMsKMbdN.106.woff2]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/notosansjp/v56/-F62fjtqLzI2JPCgQBnw7HFowwII2lcnk-AFfrgQrvWXpdFg3KXxAMsKMbdN.111.woff2]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/notosansjp/v56/-F62fjtqLzI2JPCgQBnw7HFowwII2lcnk-AFfrgQrvWXpdFg3KXxAMsKMbdN.116.woff2]]] type:subitems]]]

items: [map[node:map[type:text value:Total] score:0.00542] map[node:map[boundingRect:map[bottom:701 height:91 left:38 right:374 top:610 width:336] lhId:page-28-DIV nodeLabel:いますぐ始める path:1,HTML,1,BODY,3,DIV,0,DIV,0,DIV,2,DIV selector:div.content > div.p-top-new-mainvisual > div.p-top-new-mainvisual__container > div.p-top-new-mainvisual__sub-text--sp snippet:<div class="p-top-new-mainvisual__sub-text--sp"> type:node] score:0.00542]]

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
/font-awesome/4.6.3/fonts/fontawesome-webfont.woff2?v=4.6.3	55 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:47.004 source:map[column:73398 line:2 type:source-location url:https://scripts.clarity.ms/0.8.59/clarity.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:136.126 source:map[type:text value:[unattributed]]] map[reflowTime:47.004 source:map[column:31518 line:1 type:source-location url:https://scripts.clarity.ms/0.8.59/clarity.js 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.

	URL	Resource Size	Est Savings
Features of Peraichi ペライチのサービスの特長専門知識は必要なしカンタン操作で本格的なホームページを作成ペライチを利用するために… `body._fallback_style > div.content > div#feature-1`	peraichi.com/img/top/sp_1.png	939.8 KiB	697.1 KiB
div > div.p-top-new-features__second--option > div > img `div > div.p-top-new-features__second--option > div > img`	peraichi.com/img/top/3.gif	667.4 KiB	598.8 KiB
ペライチの特長 3 `div.slick-list > div.slick-track > li#slick-slide42 > img`	peraichi.com/img/top/main-slide-3-sp.png	569.6 KiB	547.6 KiB
div.p-top-new-features__first-template__container > div.p-top-new-features__first-template--ads > div > img `div.p-top-new-features__first-template__container > div.p-top-new-features__first-template--ads > div > img`	peraichi.com/img/top/1.gif	600.4 KiB	471.4 KiB
ペライチの特長 2 `div.slick-list > div.slick-track > li#slick-slide41 > img`	peraichi.com/img/top/main-slide-2-sp.png	384.2 KiB	362.3 KiB
ペライチの特長 5 `div.slick-list > div.slick-track > li#slick-slide44 > img`	peraichi.com/img/top/main-slide-5-sp.png	371.4 KiB	349.5 KiB
ペライチの特長 6 `div.slick-list > div.slick-track > li#slick-slide45 > img`	peraichi.com/img/top/main-slide-6-sp.png	362.2 KiB	340.2 KiB
ペライチの特長 1 `div.slick-list > div.slick-track > li#slick-slide40 > img`	peraichi.com/img/top/main-slide-1-sp.png	356.8 KiB	334.9 KiB
疑問も不安もその場で解消！国産サービスならではの安心サポート初めてのホームページ運用も、ペライチなら安心。オペレーターが常に寄り添い、疑問や不安を解消し… `body._fallback_style > div.content > div#feature-3`	peraichi.com/img/top/sp_3.png	429.1 KiB	326.8 KiB
アイデアをその場で形に！スピーディーなページ制作でビジネスの機会損失を回避ペライチを使えば、ホームページやWebサイトの制作日数を大幅に削減できます。日… `body._fallback_style > div.content > div#feature-2`	peraichi.com/img/top/sp_2.png	412.9 KiB	312.2 KiB
ペライチの特長 4 `div.slick-list > div.slick-track > li#slick-slide43 > img`	peraichi.com/img/top/main-slide-4-sp.png	130.9 KiB	108.9 KiB
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp5_sp.png	87.3 KiB	79.8 KiB
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp8_sp.png	66.5 KiB	59.1 KiB
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp2_sp.png	62.6 KiB	55.2 KiB
Member Milestone `div.p-top-new-mainvisual > div.p-top-new-mainvisual__container > div.p-top-new-mainvisual__main-slider > img.p-top-new-mainvisual__img-label`	peraichi.com/img/top/img_member_milestone.png	50.0 KiB	46.8 KiB
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp1_sp.png	53.1 KiB	45.6 KiB
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp3_sp.png	50.7 KiB	43.2 KiB
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp7_sp.png	49.8 KiB	42.3 KiB
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp4_sp.png	44.8 KiB	37.4 KiB
div > div.p-top-new-features__second--option > div > img `div > div.p-top-new-features__second--option > div > img`	peraichi.com/img/top/2.gif	52.7 KiB	35.2 KiB
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp6_sp.png	24.3 KiB	16.8 KiB
Feature 2 `a > div.p-top-new-overview__func-item > div.p-top-new-overview__func-item--img > img`	peraichi.com/img/top/feature_2.png	21.7 KiB	15.7 KiB
Feature 3 `a > div.p-top-new-overview__func-item > div.p-top-new-overview__func-item--img > img`	peraichi.com/img/top/feature_3.png	18.9 KiB	13.4 KiB
div > div.p-top-new-features__second--option > div > img `div > div.p-top-new-features__second--option > div > img`	peraichi.com/img/top/feature2_1.png	30.3 KiB	13.3 KiB
Feature 1 `a > div.p-top-new-overview__func-item > div.p-top-new-overview__func-item--img > img`	peraichi.com/img/top/feature_1.png	16.4 KiB	10.2 KiB
div.p-top-new-features__first-template__container > div.p-top-new-features__first-template--url > div.u-flex > img `div.p-top-new-features__first-template__container > div.p-top-new-features__first-template--url > div.u-flex > img`	peraichi.com/img/top/URL.png	13.7 KiB	5.0 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:1078.964 label:Time to first byte subpart:timeToFirstByte] map[duration:224.823 label:Resource load delay subpart:resourceLoadDelay] map[duration:3747.55 label:Resource load duration subpart:resourceLoadDuration] map[duration:17.598 label:Element render delay subpart:elementRenderDelay]]

lhId: page-7-IMG

nodeLabel: ペライチの特長 1

path: 1,HTML,1,BODY,3,DIV,0,DIV,0,DIV,1,DIV,2,DIV,0,UL,0,DIV,0,DIV,0,LI,0,IMG

selector: div.slick-list > div.slick-track > li#slick-slide40 > img

snippet: <img src="/img/top/main-slide-1-sp.png" alt="ペライチの特長 1">

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-7-IMG

nodeLabel: ペライチの特長 1

path: 1,HTML,1,BODY,3,DIV,0,DIV,0,DIV,1,DIV,2,DIV,0,UL,0,DIV,0,DIV,0,LI,0,IMG

selector: div.slick-list > div.slick-track > li#slick-slide40 > img

snippet: <img src="/img/top/main-slide-1-sp.png" alt="ペライチの特長 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

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
peraichi.com/css/common.css?1776753462	163.7 KiB	1.8 s
peraichi.com/js/front_all.js?1776753345	43.8 KiB	452 ms
peraichiapp.com/js/libs/google_tag_manager.js	697 B	1.4 s
fonts.googleapis.com/css?family=Noto+Sans+JP:400,500&display=swap	59.8 KiB	1.2 s
maxcdn.bootstrapcdn.com/font-awesome/4.6.3/css/font-awesome.min.css	7.0 KiB	810 ms

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

Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 969 ms

URL	Time Spent
peraichi.com/	1.1 s

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Element	Layout shift score
What's Peraichi? ペライチとは？ペライチは初期費用・サーバー維持費0円！誰もがカンタンに作れるホームページ作成ツールです Webサイトの… `body._fallback_style > div.content > div.p-top-new-overview`	0.209
初期費用0円、ページ完成までわずか30分ホームページ作成はペライチ 1 2 3 4 5 6 いますぐ始める `body._fallback_style > div.content > div.p-top-new-mainvisual > div.p-top-new-mainvisual__container`	0.019
What's Peraichi? ペライチとは？ペライチは初期費用・サーバー維持費0円！誰もがカンタンに作れるホームページ作成ツールです Webサイトの… `body._fallback_style > div.content > div.p-top-new-overview`	0.005

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 900 ms 210.2 KiB

URL	Transfer Size	Est Savings
peraichi.com/css/common.css?1776753462	163.4 KiB	150.9 KiB
fonts.googleapis.com/css?family=Noto+Sans+JP:400,500&display=swap	59.3 KiB	59.3 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: 3.8 s 889.6 KiB

URL	Transfer Size	Est Savings
www.googletagmanager.com/gtag/js?id=AW-17668541560	144.2 KiB	106.0 KiB
www.googletagmanager.com/gtag/js?id=G-VS0Y19WXJC&cx=c&gtm=4e64k0h1	173.5 KiB	70.0 KiB
www.googletagmanager.com/gtag/destination?id=AW-941828060&cx=c&gtm=4e64k0h1	144.4 KiB	68.9 KiB
/gtm/js?id=OPT-TQQS8DB&t=gtag_UA_58464770_2&cid=399490135...	111.8 KiB	68.3 KiB
www.googletagmanager.com/gtm.js?id=GTM-NGS6QVQ3&gtm=4e64k0h1	148.5 KiB	66.5 KiB
www.googletagmanager.com/gtm.js?id=GTM-MWJNCFXF	119.3 KiB	66.3 KiB
www.googletagmanager.com/gtag/js?id=G-FT0P1X38TQ&cx=c&gtm=4e64k0	172.4 KiB	65.7 KiB
www.googletagmanager.com/gtag/js?id=G-250757919&cx=c&gtm=4e64k0h1	136.6 KiB	64.8 KiB
www.googletagmanager.com/gtag/js?id=UA-58464770-2	116.4 KiB	61.6 KiB
www.googletagmanager.com/gtag/destination?id=AW-17668541560&cx=c&gtm=4e64k0h1	144.2 KiB	61.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-WR9XQH	177.2 KiB	60.1 KiB
connect.facebook.net/ja_JP/bundle/sdk.js/	77.8 KiB	46.3 KiB
connect.facebook.net/en_US/fbevents.js	96.5 KiB	31.6 KiB
/signals/config/3806078839613932?v=2.9.303&r=stable&domai...	96.9 KiB	26.2 KiB
script.hotjar.com/modules.6a0f3932cb1341a35c18.js	56.1 KiB	25.9 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
peraichi.com/	2.1 s	32 ms	6.6 ms
Unattributable	1.2 s	132 ms	0.0 ms
www.googletagmanager.com/gtm.js?id=GTM-WR9XQH	827 ms	693 ms	63 ms
scripts.clarity.ms/0.8.59/clarity.js	474 ms	205 ms	6.8 ms
peraichi.com/js/front_all.js?1776753345	460 ms	360 ms	8.2 ms
script.hotjar.com/modules.6a0f3932cb1341a35c18.js	460 ms	410 ms	21 ms
www.googletagmanager.com/gtag/js?id=UA-58464770-2	320 ms	277 ms	26 ms
www.googletagmanager.com/gtag/js?id=G-VS0Y19WXJC&cx=c&gtm=4e64k0h1	286 ms	240 ms	42 ms
www.googletagmanager.com/gtm.js?id=GTM-NGS6QVQ3&gtm=4e64k0h1	258 ms	192 ms	63 ms
www.googletagmanager.com/gtag/js?id=G-FT0P1X38TQ&cx=c&gtm=4e64k0	241 ms	193 ms	46 ms
/signals/config/3806078839613932?v=2.9.303&r=stable&domai...	227 ms	193 ms	26 ms
www.googletagmanager.com/gtag/js?id=G-250757919&cx=c&gtm=4e64k0h1	222 ms	183 ms	38 ms
www.googletagmanager.com/gtag/destination?id=AW-941828060&cx=c&gtm=4e64k0h1	201 ms	160 ms	39 ms
platform.twitter.com/widgets.js	187 ms	148 ms	7.0 ms
www.googletagmanager.com/gtag/destination?id=AW-17668541560&cx=c&gtm=4e64k0h1	179 ms	137 ms	33 ms
/signals/config/1569870679986757?v=2.9.303&r=stable&domai...	171 ms	150 ms	15 ms
connect.facebook.net/en_US/fbevents.js	162 ms	120 ms	35 ms
connect.facebook.net/ja_JP/bundle/sdk.js/	158 ms	129 ms	20 ms
/gtm/js?id=OPT-TQQS8DB&t=gtag_UA_58464770_2&cid=399490135...	129 ms	103 ms	26 ms
/signals/config/1019818098525170?v=2.9.303&r=stable&domai...	128 ms	112 ms	14 ms
www.googletagmanager.com/gtm.js?id=GTM-MWJNCFXF	94 ms	62 ms	30 ms
/signals/config/1506882067186661?v=2.9.303&r=stable&domai...	74 ms	59 ms	7.8 ms
cdn.mxpnl.com/libs/mixpanel-2-latest.min.js	66 ms	58 ms	6.9 ms
www.googletagmanager.com/gtag/js?id=AW-17668541560	56 ms	23 ms	32 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	5.1 s
Other	1.7 s
Style & Layout	1.5 s
Script Parsing & Compilation	683 ms
Rendering	240 ms
Garbage Collection	171 ms
Parse HTML & CSS	138 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 WebSocket cannot enter back/forward cache.	Pending browser support

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 6.2 KiB

URL	Transfer Size	Est Savings
fonts.googleapis.com/css?family=Noto+Sans+JP:400,500&display=swap	59.8 KiB	6.2 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 6.2 KiB

URL	Transfer Size	Est Savings
www.rentracks.jp/js/itp/rt.track.js?t=1776893227608	14.3 KiB	6.2 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
peraichi.com/img/top/main-slide-3-pc.png	2.6 MiB
peraichi.com/img/top/main-slide-2-pc.png	2.1 MiB
peraichi.com/img/top/main-slide-5-pc.png	1.5 MiB
peraichi.com/img/top/main-slide-1-pc.png	1.5 MiB
peraichi.com/img/top/main-slide-6-pc.png	1.1 MiB
peraichi.com/img/top/sp_1.png	941.2 KiB
peraichi.com/img/top/3.gif	668.5 KiB
peraichi.com/img/top/main-slide-4-pc.png	606.7 KiB
peraichi.com/img/top/1.gif	601.3 KiB
peraichi.com/img/top/main-slide-3-sp.png	570.6 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
div > div.p-top-new-features__second--option > div > img `div > div.p-top-new-features__second--option > div > img`	peraichi.com/img/top/2.gif
div > div.p-top-new-features__second--option > div > img `div > div.p-top-new-features__second--option > div > img`	peraichi.com/img/top/3.gif
ペライチの特長 1 `div.slick-list > div.slick-track > li#slick-slide40 > img`	peraichi.com/img/top/main-slide-1-sp.png
ペライチの特長 2 `div.slick-list > div.slick-track > li#slick-slide41 > img`	peraichi.com/img/top/main-slide-2-sp.png
ペライチの特長 3 `div.slick-list > div.slick-track > li#slick-slide42 > img`	peraichi.com/img/top/main-slide-3-sp.png
ペライチの特長 4 `div.slick-list > div.slick-track > li#slick-slide43 > img`	peraichi.com/img/top/main-slide-4-sp.png
ペライチの特長 5 `div.slick-list > div.slick-track > li#slick-slide44 > img`	peraichi.com/img/top/main-slide-5-sp.png
ペライチの特長 6 `div.slick-list > div.slick-track > li#slick-slide45 > img`	peraichi.com/img/top/main-slide-6-sp.png
div.p-top-new-features__first-template__container > div.p-top-new-features__first-template--ads > div > img `div.p-top-new-features__first-template__container > div.p-top-new-features__first-template--ads > div > img`	peraichi.com/img/top/1.gif
div.p-top-new-features__first-template__container > div.p-top-new-features__first-template--url > div.u-flex > img `div.p-top-new-features__first-template__container > div.p-top-new-features__first-template--url > div.u-flex > img`	peraichi.com/img/top/URL.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp6_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp7_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp8_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp1_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp2_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp3_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp5_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp6_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp7_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp8_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp1_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp2_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp3_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp5_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp6_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp7_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp8_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp2_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp1_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp3_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp7_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp6_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp2_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp1_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp3_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp7_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp6_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp2_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp1_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp4_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp4_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp4_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp4_sp.png
事例 `div.p-top-new-feature__example-pages__page-container > div.p-top-new-feature__example-pages__page-bezel > div.p-top-new-feature__example-pages__img-container > img.p-top-new-feature__example-pages__img`	peraichi.com/img/top/temp4_sp.png
制作会社（業者）に依頼する `div.p-top-new-university__items > div.p-top-new-university__item-wrapper > div.p-top-new-university__item > img`	peraichi.com/images/top_settings.png
制作会社（業者）に依頼する `div.p-top-new-university__items > div.p-top-new-university__item-wrapper > div.p-top-new-university__item > img`	peraichi.com/images/top_html_css.png
制作会社（業者）に依頼する `div.p-top-new-university__items > div.p-top-new-university__item-wrapper > div.p-top-new-university__item > img`	peraichi.com/images/top_create_page.png
1ヶ月間無料 `div.p-top-new-mainvisual > div.p-top-new-mainvisual__container > div.p-top-new-mainvisual__sub-text--sp > img`	peraichi.com/images/top_txt_free_for_one_month.png
div.p-top-new-features__container > div.p-top-new-features__header > div.p-top-new-features__desc > img `div.p-top-new-features__container > div.p-top-new-features__header > div.p-top-new-features__desc > img`	peraichi.com/img/top/2.png
div.p-top-new-features__container > div.p-top-new-features__header > div.p-top-new-features__desc > img `div.p-top-new-features__container > div.p-top-new-features__header > div.p-top-new-features__desc > img`	peraichi.com/img/top/3.png
div.p-top-new-features__first-container > div.p-top-new-features__header > div.p-top-new-features__desc > img `div.p-top-new-features__first-container > div.p-top-new-features__header > div.p-top-new-features__desc > img`	peraichi.com/img/top/1.png

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

●Optimize DOM size

●Modern HTTP

●Optimize viewport for mobile

●User Timing marks and measures 17 user timings

●Avoid long main-thread tasks 20 long tasks found

●Network Requests

●Network Round Trip Times 290 ms

●Server Backend Latencies 1,100 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

○INP breakdown

○Avoid non-composited animations

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
メニュー `div.l-header-upper > div.l-header-upper__container > div#js-mobile-nav > button.l-header-mobile-nav__btn`
What's Peraichi? `div.p-top-new-overview__container > div.p-top-new-overview__desc > div.p-top-new-overview__title > p.u-weight-bold`
専門知識は必要なし！ `div.p-top-new-overview__func-lists > a > div.p-top-new-overview__func-item > div.p-top-new-overview__func-item--note`
カンタン操作で `div.p-top-new-overview__func-item--img > div.p-top-new-overview__func-item--desc > h3 > span.p-top-new-overview__func-item--desc__secondary`
アイデアをその場で形に！ `div.p-top-new-overview__func-lists > a > div.p-top-new-overview__func-item > div.p-top-new-overview__func-item--note`
わずか30分で `div.p-top-new-overview__func-item--img > div.p-top-new-overview__func-item--desc > h3 > span.p-top-new-overview__func-item--desc__secondary`
疑問も不安もその場で解消！ `div.p-top-new-overview__func-lists > a > div.p-top-new-overview__func-item > div.p-top-new-overview__func-item--note`
安心サポートで `div.p-top-new-overview__func-item--img > div.p-top-new-overview__func-item--desc > h3 > span.p-top-new-overview__func-item--desc__secondary`
ペライチ予約 `div.p-top-new-features__item > div.p-top-new-features__item-name > div.p-top-new-features__item-main > p.u-color-primary`
詳しく見る `div.p-top-new-features__others--start > div.p-top-new-features__item > div.u-flex > a.p-top-common-button`
ペライチ決済 `div.p-top-new-features__item > div.p-top-new-features__item-name > div.p-top-new-features__item-main > p.u-color-primary`
詳しく見る `div.p-top-new-features__others--start > div.p-top-new-features__item > div.u-flex > a.p-top-common-button`
フォーム `div.p-top-new-features__item > div.p-top-new-features__item-name > div.p-top-new-features__item-main > p.u-color-primary`
詳しく見る `div.p-top-new-features__others--start > div.p-top-new-features__item > div.u-flex > a.p-top-common-button`
こんなサイトも、あんなサイトも。自分だけのサイトが作れます！ `div.u-bgcolor-white > div.u-pb-md > div.u-pt-md > p.p-top-new-features__others--title`
メルマガ配信 `div.p-top-new-features__item > div.p-top-new-features__item-name > div.p-top-new-features__item-main > p.u-color-primary`
詳しく見る `div.p-top-new-features__others--end > div.p-top-new-features__item > div.u-flex > a.p-top-common-button`
ペライチ公式note `div.p-top-new-university > div.p-top-new-university__top > div.u-mt-md > a.c-btn`
例えば、こんなコンテンツを発信しています `div.p-top-new-university > div.p-top-new-university__bottom > div.p-top-new-university__bottom-title > span`
2026.04.17 `li.u-border-bottom > a.link--inherit > div.u-inline-block > span.u-color-gray-dark`
2026.04.02 `li.u-border-bottom > a.link--inherit > div.u-inline-block > span.u-color-gray-dark`
2026.03.30 `li.u-border-bottom > a.link--inherit > div.u-inline-block > span.u-color-gray-dark`
2026.03.16 `li.u-border-bottom > a.link--inherit > div.u-inline-block > span.u-color-gray-dark`
2026.03.03 `li.u-border-bottom > a.link--inherit > div.u-inline-block > span.u-color-gray-dark`
ログイン `body._fallback_style > footer#footer > div.u-align-center > a.link--underline`
会員登録 `body._fallback_style > footer#footer > div.u-align-center > a.link--underline`
ペライチとは、株式会社ペライチが運営するホームページ作成サービスです。専門知識が無くてもスピーディかつ簡単にホームページが制作できます。ペライチの特徴は、直観… `body._fallback_style > footer#footer > div.u-align-center > p.l-footer__overview-desc`

These are opportunities to improve the legibility of your content.

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 2 3 4 5 6 `div.p-top-new-mainvisual__container > div.p-top-new-mainvisual__main-slider > div.p-top-new-mainvisual__fv-sp > ul#js-top-new-fv-slider-sp`
1 2 3 4 5 6 7 8 `div.p-top-new-features__first-template > div.p-top-new-features__first-template__container > div.p-top-new-feature__example-pages > ul#js-top-new-example-pages-sp-slider`
コーポレートサイト教室予約ポートフォリオネットショップホテル予約資料請求コーポレートサイト教室予約ポートフォリオネットショップホテル予約 … `div.u-bgcolor-white > div.u-pb-md > div.u-pt-md > ul#js-top-new-template-slider`

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`

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html `html`

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

●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

●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 have a discernible name

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

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

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Deprecated ARIA roles were not used

●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

○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 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

○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

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

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

○All heading elements contain content.

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

○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

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
AttributionReporting	connect.facebook.net/en_US/fbevents.js line 279, col 769

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
peraichi.com/	Access to fetch at 'https://apm.yahoo.co.jp/rt/?p=3SKK308YFK&label=&ref=https%3A%2F%2Fperaichi.com%2F&rref=&pt=&item=&cat=&price=&quantity=&et_optout=false&r=1776893227.5976245&pvid=40ng4lv46bsmoakcl5f&su=5289552f-3ff3-4683-b279-41ec6531b868&__lt__cid_valid=false&_impl=ytag&brands=%22Chromium%22%3B%20v%3D%22147.0.7727.101%22%2C%20%22Not.A%2FBrand%22%3B%20v%3D%228.0.0.0%22&platform=%22Android%22&platform_version=%2211.0%22' from origin 'https://peraichi.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
peraichi.com/	Access to fetch at 'https://apm.yahoo.co.jp/rt/?p=P1NZSIVW08&label=&ref=https%3A%2F%2Fperaichi.com%2F&rref=&pt=&item=&cat=&price=&quantity=&et_optout=false&r=1776893227.6800687&pvid=40ng4lv46bsmoakcl5f&su=5289552f-3ff3-4683-b279-41ec6531b868&__lt__cid_valid=false&_impl=ytag&brands=%22Chromium%22%3B%20v%3D%22147.0.7727.101%22%2C%20%22Not.A%2FBrand%22%3B%20v%3D%228.0.0.0%22&platform=%22Android%22&platform_version=%2211.0%22' from origin 'https://peraichi.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
/rt/?p=P1NZSIVW08&label=&ref=https%3A%2F%2Fperaichi.com%2...	`Failed to load resource: net::ERR_FAILED`
/rt/?p=3SKK308YFK&label=&ref=https%3A%2F%2Fperaichi.com%2...	`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 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

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.

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
テンプレート `div.l-header-mobile-nav__menu > ul.l-header-mobile-nav__items > li.l-header-mobile-nav__menu-item > a.u-color-muted`
機能一覧 `div.l-header-mobile-nav__menu > ul.l-header-mobile-nav__items > li.l-header-mobile-nav__menu-item > a.u-color-muted`

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 have descriptive text

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`