AI Rendering：AI 代理能读懂的页面副本

curl -X POST https://api.querying.ai/v1/ai-rendering/sites \
  -H "Authorization: Bearer $QUERYING_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "host": "www.example.com" }'

{
  "success": true,
  "site": {
    "id": "5b0e9f52-6a3c-4f0e-8d0b-2c7e4a1f9d33",
    "host": "www.example.com",
    "refreshDays": 28,
    "country": "US",
    "keyPrefix": "rs_8f2c4a1b",
    "pages": 0,
    "createdAt": "2026-10-23T01:00:00.000Z",
    "updatedAt": "2026-10-23T01:00:00.000Z"
  },
  "key": "rs_8f2c4a1b…"
}

curl -X POST https://api.querying.ai/v1/ai-rendering/sites/5b0e9f52-6a3c-4f0e-8d0b-2c7e4a1f9d33/pages \
  -H "Authorization: Bearer $QUERYING_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "url": "https://www.example.com/products/sunscreen" }'

{
  "success": true,
  "page": {
    "id": "a3d1c9e0-7b52-4e1f-9c84-0f6b2d5e7a10",
    "url": "https://www.example.com/products/sunscreen",
    "path": "/products/sunscreen",
    "status": "rendering",
    "copy": null,
    "taskId": null,
    "renderedAt": null,
    "expiresAt": null,
    "publishedAt": "2026-10-23T01:00:00.000Z",
    "refreshAt": "2026-10-23T07:00:00.000Z",
    "refreshTaskId": "7c4e2a90-1d3b-4f6a-8e25-9b0c1f3d4e57"
  },
  "taskId": "7c4e2a90-1d3b-4f6a-8e25-9b0c1f3d4e57"
}

export const COPIES_URL = "https://api.querying.ai/v1/ai-rendering/copies";

export const AGENTS = [
	"chatgpt-user",
	"codex",
	"claude-user",
	"claude-code",
	"perplexity-user",
	"gemini-deep-research",
	"duckassistbot",
	"amzn-user",
	"mistralai-user",
	"oai-searchbot",
];

export const DOWNLOADS_PER_SYNC = 40;

const EXPIRY_MARGIN_MS = 10 * 60_000;

const TRACKING_PARAM =
	/^(?:utm_[a-z0-9_]+|gclid|gbraid|wbraid|dclid|fbclid|msclkid|twclid|ttclid|srsltid|mc_cid|mc_eid|_ga|_gl)$/i;

export function pagePath(url) {
	const kept = [...url.searchParams].filter(([name]) => !TRACKING_PARAM.test(name));
	return (url.pathname || "/") + (kept.length ? "?" + new URLSearchParams(kept).toString() : "");
}

export async function copyKey(host, path) {
	const digest = await crypto.subtle.digest("SHA-256", new TextEncoder().encode(host.toLowerCase() + path));
	return "copy:" + [...new Uint8Array(digest)].map((byte) => byte.toString(16).padStart(2, "0")).join("");
}

export function agentRequest(request, agents = AGENTS) {
	if (request.method !== "GET") return false;
	const userAgent = (request.headers.get("user-agent") ?? "").toLowerCase();
	return agents.some((token) => userAgent.includes(token));
}

export async function syncCopies(options) {
	const {
		siteKey,
		store,
		copiesUrl = COPIES_URL,
		downloads = DOWNLOADS_PER_SYNC,
		fetch: send = fetch,
		now = Date.now,
	} = options;
	if (!siteKey) throw new Error("AI Rendering: no site key");
	const answer = await send(copiesUrl, { headers: { "X-Querying-Site-Key": siteKey } });
	if (!answer.ok) throw new Error(`AI Rendering: the copy list answered ${answer.status}`);
	const { host, copies } = await answer.json();
	const stored = await store.list();
	const listed = new Set();
	const result = { listed: copies.length, downloaded: 0, failed: 0, waiting: 0, removed: 0 };
	for (const copy of copies) {
		const key = await copyKey(host, copy.path);
		listed.add(key);
		if (stored.get(key) === copy.renderedAt || Date.parse(copy.expiresAt) - now() < EXPIRY_MARGIN_MS) continue;
		if (result.downloaded + result.failed >= downloads) {
			result.waiting++;
			continue;
		}
		try {
			const file = await send(copy.copy);
			if (!file.ok) throw new Error(String(file.status));
			await store.put(key, await file.arrayBuffer(), { renderedAt: copy.renderedAt, expiresAt: copy.expiresAt });
			result.downloaded++;
		} catch {
			result.failed++;
		}
	}
	for (const key of stored.keys())
		if (!listed.has(key)) {
			await store.delete(key);
			result.removed++;
		}
	return result;
}

export async function copyFor(request, store, agents = AGENTS) {
	if (!agentRequest(request, agents)) return null;
	try {
		const url = new URL(request.url);
		const copy = await store.get(await copyKey(url.hostname, pagePath(url)));
		if (!copy || !(Date.parse(copy.expiresAt) > Date.now())) return null;
		return new Response(copy.body, {
			status: 200,
			headers: {
				"Content-Type": "text/html; charset=utf-8",
				"Cache-Control": "private, no-store",
				Vary: "User-Agent",
				"X-Querying-Rendering": "HIT",
				"X-Querying-Rendered-At": copy.renderedAt,
			},
		});
	} catch {
		return null;
	}
}

curl -sI -A "Mozilla/5.0 (compatible; ChatGPT-User/1.0; +https://openai.com/bot)" https://www.example.com/products/sunscreen

{
  "success": true,
  "host": "www.example.com",
  "copies": [
    {
      "path": "/products/sunscreen",
      "url": "https://www.example.com/products/sunscreen",
      "copy": "https://api.querying.ai/v1/evidence/1792717200-9f3c2a7d1e4b.html",
      "renderedAt": "2026-10-23T01:00:31.000Z",
      "expiresAt": "2026-11-22T01:00:00.000Z"
    }
  ]
}