The Plain Fetch viewer

In short

The viewer requests a URL the way a plain-fetch agent does: no JavaScript, one request for HTML, one for markdown, one for llms.txt and one for a path that should not exist. It shows the initial HTML on the left, the readable text on the right, and seven flags underneath.

Pre-loaded with www.wikipedia.org, read 4 November 2026. Type any public URL to run your own.

GET https://dlsite.com/ answered 200 with text/html, 205 KB, 3 redirects, read 8 November 2026, 13:22 UTC. Final URL: https://www.dlsite.com/index.html.

Permalink: /viewer/?url=https://dlsite.com/

The page answers a plain fetch: 3 of 6 checks found.

Initial HTML what a plain fetch receives

<!DOCTYPE html>
<html lang="ja">

<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
[... 7 more head elements folded ...]
<link rel="alternate" media="only screen and (max-width: 640px)" href="https://www.dlsite.com/touch.html" class="alternate_smartphone">
<link rel="alternate" hreflang="ja" href="https://www.dlsite.com/index.html">
<link rel="alternate" hreflang="en" href="https://www.dlsite.com/index.html?locale=en_US">
<link rel="alternate" hreflang="zh-CN" href="https://www.dlsite.com/index.html?locale=zh_CN">
<link rel="alternate" hreflang="zh-TW" href="https://www.dlsite.com/index.html?locale=zh_TW">
<link rel="alternate" hreflang="ko" href="https://www.dlsite.com/index.html?locale=ko_KR">
<link rel="alternate" hreflang="es" href="https://www.dlsite.com/index.html?locale=es_ES">
<link rel="alternate" hreflang="de" href="https://www.dlsite.com/index.html?locale=de_DE">
<link rel="alternate" hreflang="fr" href="https://www.dlsite.com/index.html?locale=fr_FR">
<link rel="alternate" hreflang="id" href="https://www.dlsite.com/index.html?locale=id_ID">
<link rel="alternate" hreflang="it" href="https://www.dlsite.com/index.html?locale=it_IT">
<link rel="alternate" hreflang="pt" href="https://www.dlsite.com/index.html?locale=pt_BR">
<link rel="alternate" hreflang="sv" href="https://www.dlsite.com/index.html?locale=sv_SE">
<link rel="alternate" hreflang="th" href="https://www.dlsite.com/index.html?locale=th_TH">
<link rel="alternate" hreflang="vi" href="https://www.dlsite.com/index.html?locale=vi_VN">
<link rel="alternate" hreflang="x-default" href="https://www.dlsite.com/index.html?locale=en_US">
<title>DLsite：同人誌、同人ゲームからPCソフト、コミックまで二次元総合ダウンロードショップ | DLsite 総合トップページ</title>
<meta name="description" content="同人誌・同人ゲーム・同人ボイス・ASMRまで毎日更新、すぐにダウンロード。1,712万ユーザー、13.2万サークル、210万作品を突破！国内最大級の二次元総合ダウンロードショップDLsite！">
[... 38 more head elements folded ...]
</head>

<body>
  <noscript>[... 146 characters folded ...]</noscript>
  <script type="text/javascript">[... 4,650 characters folded ...]</script>
  <script>[... 461 characters folded ...]</script>
  <script>[... 352 characters folded ...]</script>

  <div id="locale_setting_dialog" class="adult_check_box _adultcheck type_lang_select">
    <div class="check_top">
      <h1 id="locale_setting_title" class="icon_lang">Select Language</h1>
      <ul class="lang_select">
        <li class="lang_select_item">
          <a href="/index.html?locale=ja_JP" class="locale_setting_button">日本語</a>
        </li>
        <li class="lang_select_item">
          <a href="/index.html?locale=en_US" class="locale_setting_button">English</a>
        </li>
        <li class="lang_select_item">
          <a href="/index.html?locale=zh_CN" class="locale_setting_button">简体中文</a>
        </li>
        <li class="lang_select_item">
          <a href="/index.html?locale=zh_TW" class="locale_setting_button">繁體中文</a>
        </li>
        <li class="lang_select_item">
          <a href="/index.html?locale=ko_KR" class="locale_setting_button">한국어</a>
        </li>
        <li class="lang_select_item">
          <a href="/index.html?locale=es_ES" class="locale_setting_button">Español</a>
        </li>
        <li class="lang_select_item">
          <a href="/index.html?locale=de_DE" class="locale_setting_button">Deutsch</a>
        </li>
        <li class="lang_select_item">
          <a href="/index.html?locale=fr_FR" class="locale_setting_button">Français</a>
        </li>
        <li class="lang_select_item">
          <a href="/index.html?locale=id_ID" class="locale_setting_button">Bahasa Indonesia</a>
        </li>
        <li class="lang_select_item">
          <a href="/index.html?locale=it_IT" class="locale_setting_button">Italiano</a>
        </li>
        <li class="lang_select_item">
          <a href="/index.html?locale=pt_BR" class="locale_setting_button">Português</a>
        </li>
        <li class="lang_select_item">
          <a href="/index.html?locale=sv_SE" class="locale_setting_button">Svenska</a>
        </li>
        <li class="lang_select_item">
          <a href="/index.html?locale=th_TH" class="locale_setting_button">ภาษาไทย</a>
        </li>
        <li class="lang_select_item">
          <a href="/index.html?locale=vi_VN" class="locale_setting_button">Tiếng Việt</a>
        </li>
      </ul>
    </div>
  </div>

  <!-- ja -->
  <div id="index2_container" class="_ja">
    <div id="index2_header">
      <h1>国内最大級の取り揃え！登録作品210万以上！ 同人誌・同人ゲーム・同人ボイス・ASMRならDLsite</h1>
      <div class="inner_01">
        <div class="header_left_item">
          <a class="logo_dlsite" href="https://www.dlsite.com/">
            <img src="/modpub/images/web/common/logo/pc/logo-dlsite.png" alt="DLsite" width="89" height="25">
          </a>
          <div class="globalSearch">
            <form action="/home/fs" method="post" class="globalSearch-form">
              <input name="_qf__fulltext_search" type="hidden">
              <input name="_layout" type="hidden" value="fs">
              <input name="_site" type="hidden" value="home">
              <input name="_form_id" type="hidden" value="FulltextSearchProductForm">
              <input name="_view" type="hidden" value="input">
              <input name="from" type="hidden" value="topsearch">
              <input type="hidden" name="site_category">
              <input type="hidden" name="ana_flg" value="all">
              <div class="globalSearchForm">
                <input name="keyword" type="search" id="search_text" maxlength="255" autocomplete="off" aria-autocomplete="list" placeholder="キーワードから探す（作品名、サークル名、ジャンルなど）">
              </div>
              <button id="search_button" type="submit" class="globalSearchBtn"><i>検索</i></button>
            </form>
            <ul class="suggest" style="display: none;"></ul>
          </div>
        </div>
        <ul class="utility_menu">
          <li class="type-register _notLoggedIn"><a href="/home/regist/user"><i>ユーザー登録</i></a></li>
          <li class="type-circle"><a href="/home/circle/invite"><i>サークル登録</i></a></li>
          <li class="type-login">
            <a href="/home/login/=/skip_register/1/_query/https%3A%2F%2Fwww.dlsite.com%2Fhome%2Fmypage">
              <i class="_notLoggedIn">ログイン</i>
              <i class="_loggedIn">マイページ</i>
            </a>
          </li>
        </ul>
        <div class="header_dropdown_nav type_language">
          <div class="header_dropdown_nav_Link type_language_top"><a href="#"><i>Language</i></a></div>
          <div class="header_dropdown_nav_group type_index">
            <div class="header_dropdown_list">
              <h3>言語と通貨を設定</h3>
              <div class="lang_currency_select_wrap">
                <h4>言語</h4>
                <div class="select_arrow">
                  <select name="language" class="lang_currency_select">
                    <option value="ja-jp">日本語</option>
                    <option value="en-us">English</option>
                    <option value="zh-cn">简体中文</option>
                    <option value="zh-tw">繁體中文</option>
                    <option value="ko-kr">한국어</option>
                    <option value="de-de">Deutsch</option>
                    <option value="fr-fr">Français</option>
                    <option value="es-es">Español</option>
                    <option value="it-it">Italiano</option>
                    <option value="pt-br">Português</option>
                    <option value="sv-se">Svenska</option>

Shown with 10 long blocks (scripts, styles, long tags) folded into a marker that says how many characters they hide; the pane stops after the first 200 words; the page is 205 KB.

Reading view the text a plain-fetch client can extract

title: DLsite：同人誌、同人ゲームからPCソフト、コミックまで二次元総合ダウンロードショップ | DLsite 総合トップページ

Select Language

Select Language 日本語 English 简体中文繁體中文 한국어 Español Deutsch Français Bahasa Indonesia Italiano Português Svenska ภาษาไทย Tiếng Việt 国内最大級の取り揃え！登録作品210万以上！同人誌・同人ゲーム・同人ボイス・ASMRならDLsite 検索ユーザー登録サークル登録ログインマイページ Language 言語と通貨を設定言語日本語 English 简体中文繁體中文 한국어 Deutsch Français Español Italiano Português Svenska Bahasa Indonesia ภาษาไทย Tiếng Việt 通貨 JPY - 日本円 USD - 米ドル RMB - 中国人民元 TWD - 台湾ドル KRW - ウォン AUD - オーストラリアドル BRL - レアル CAD - カナダドル EUR - ユーロ GBP - ポンド HKD - 香港ドル IDR - ルピア INR - ルピー MXN - メキシコペソ MYR - リンギット NZD - ニュージーランドドル PHP - フィリピンペソ SEK - クローナ SGD - シンガポールドル THB - バーツ VND - ドン保存 000:00:00:00 ? 全年齢向け同人ゲーム、ボイス・ASMR、マンガ・CG コミック（comipo）少年・青年コミック、少女・女性コミックタテヨミ、ボイスコミック、ラノベ、小説、一般書籍 PCソフトゲーム、ドラマCD・ASMR、音楽スマホゲーム iOS/Android対応ゲームオンラインゲーム PCやスマホで遊べる基本無料のゲームプラットフォーム男性向け（R18）同人ゲーム、ボイス・ASMR マンガ・CG、タテヨミ、ボイスコミック成年コミック単行本、雑誌/アンソロ単話/短編、タテヨミ、ボイスコミック美少女ゲームゲーム、アニメ、ドラマCD・ASMR・音楽スマホゲーム iOS/Android対応ゲームオンラインゲーム PCやスマホで遊べる基本無料のゲームプラットフォーム女性向け（全年齢）ボイス・ASMR TLボイス・ASMR、BLボイス・ASMR、動画女性向け（TL/BL）乙女向け同人、TLコミック、タテヨミ、ドラマCD、ゲームボーイズラブ同人、BLコミック、タテヨミ、ドラマCD、ゲームクリエイター向け制作ソフト・素材（全年齢向け）制作ソフト、ツール、画像素材、音素材制作ソフト・素材（成人向け）制作ソフト、ツール、画像素材、音素材サイトについて会社概要採用情報利用規約特定商取引法に基づく表示資金決済法に基づく表記個人情報の取扱いについて外部送信規律に関する公表コンプライアンスポリシー著作権と不正アクセスカスタマーハラスメントに対する行動指針リンクについてサイトマップ関連サービス comipo にじGAME Ci-en DLチャンネル viviON BLUE chobit トリオキニ DLsiteスタジオヘルプはじめての方へアフィリエイト X(Twitter) 全年齢広報 Youtube 広報 (c) DLsite DLsiteはセカンドリテイリンググループであるエイシスが運営しています。 일본 최대급 작품수! 등록 작품210만작품 이상! 동인지・동인게임・동인보이스・ASMR은 DLsite 검색 유저 등록 서클 등록 로그인 마이 페이지 Language

4027 more words follow in the initial HTML.

3 found, 2 missing, 2 notes, from 7 checks run

H1Found
200 wordsFound
llms.txtNote
MarkdownMissing
Missing pathFound
JSON-LDMissing
OpenAPINote

What a plain fetch found on dlsite.com
Check	Result	Detail
H1 in the initial HTML	Found 15 H1 elements	First H1: Select Language
First 200 words in the initial HTML	Found 200 of 200 words	The initial HTML carries 4227 words of visible text; the first 200 are marked in the left pane.
llms.txt present and linked	Note present, not linked	27690 bytes, 58 links. Structure grade A (6 of 6). Nothing on the home page points to it. Ora's lab found 86 percent of llms.txt fetches arrived through a link.
Markdown on request	Missing 200 text/html	Accept: text/markdown returned 200 with text/html. The server ignores the header.
Status of a made-up path	Found 404	/agent-ready-html-missing-path-check returned 404: a real status code for a missing page.
JSON-LD types	Missing none	No JSON-LD block on the home page. Ora's lab found it made no difference when the answer was already in the HTML; Google says it is not needed for AI features.
OpenAPI link	Note none on the home page	No OpenAPI link on the home page. It matters only for a site that ships an API.

Run the full check

The viewer read one page with four requests. The full check we recommend next is Ora's scan. Its Access layer runs 42 checks worth 30 of its 100 points, among them content without JavaScript, bot detection, llms.txt, markdown on request, JSON-LD and the sitemap (Ora's check catalogue, contract 1.38.0, read 5 November 2026). Open Ora's report for dlsite.com.

Limits: Ora reads public URLs only, says two runs of one scan land within a couple of points without publishing repeat-scan data, and keeps the product that fixes what it finds behind a waitlist. Cloudflare's scanner at isitagentready.com is a quick free alternative, and Mintlify's score covers documentation.

What the viewer does

It sends four plain GET requests with the user agent Mozilla/5.0 (compatible; agent-readiness-crawl/1.0): the URL itself, the same URL with Accept: text/markdown, /llms.txt on the same host, and a made-up path at the root. It runs no JavaScript. The left pane is the first bytes of the HTML as text, with long scripts and styles folded into a marker that says how many characters they hide. The H1 and the first 200 words of visible text are marked in both panes. The flags under the panes say what the four responses added up to.

Limits

Ten seconds for all four requests together, 1.5 MB read from the home page, at most five redirects, each one checked again.
http and https only, default ports only. Private, local and internal addresses and names are refused.
Ten runs per address per minute. The counter lives in memory on the edge function, so it is per instance rather than global. Past ten you get a 429 with a Retry-After header.
Results are cached for 24 hours by the response headers. Nothing is written to a database: the viewer keeps the first 200 words and the extracted fields for the length of the request and keeps no page body beyond that.

What it does not tell you

A plain fetch from this server is not a real agent. Bot protection weighs the source address more than the user agent, so a page that answers 200 here can still refuse an agent, and the reverse. Ora's lab found (2026-10-19) that returning 403 to agent user agents and hiding the answer in JavaScript were the only two of 19 configurations that stopped retrieval; the viewer can see the second, and can only hint at the first. The initial HTML reference covers both. The server logs and the published crawler address ranges settle the first.

The seven flags

H1 in the initial HTML: Whether the HTML the server sends already contains an H1. It is the cheapest sign that the page does not depend on scripts to say what it is.
First 200 words in the initial HTML: Whether at least 200 words of visible text arrive in the initial HTML. Under 40 words with an app root element is flagged as a JavaScript shell.
llms.txt present and linked: Whether /llms.txt answers with a plain-text file, whether the home page links it (an anchor, a link element or a Link header), and the structure grade the index uses.
Markdown on request: Whether a request with Accept: text/markdown comes back as text/markdown. Cloudflare Radar found 3.9 percent of scanned top sites passing this at its April 2026 launch.
Status of a made-up path: Whether a path that should not exist returns 404 or 410. A 200 is a soft 404 and reads as a live page.
JSON-LD types: The schema.org types found in JSON-LD blocks on the page. Ora's lab found JSON-LD made no difference when the answer was already in the HTML.
OpenAPI link: Whether the page links an OpenAPI file, by an anchor or a service-desc link relation. It matters only for a site that ships an API.

Sources

Ora: AgentReady launch post (Ora's lab findings) https://ora.ai/blog/agentready-launch, read 4 November 2026
Ora check catalogue, contract 1.38.0 (132 checks, 42 in the Access layer) https://ora.ai/api/checks, read 5 November 2026
Ora home page (the fixing product is behind a waitlist) https://ora.ai/, read 5 November 2026
Ora: Introducing Deep Scan (repeat scans) https://ora.ai/blog/introducing-deep-scan, read 5 November 2026
Ora llms.txt (public URLs only) https://ora.ai/llms.txt, read 5 November 2026
Vercel: Make your site readable by AI agents https://vercel.com/kb/guide/make-your-site-readable-by-ai-agents, read 4 November 2026
llms.txt proposal (llmstxt.org) https://llmstxt.org/, read 4 November 2026

Last reviewed 5 November 2026