域名集

域名集是已保存的网站列表。通过 API，您可以根据搜索结果或自己的列表创建域名集、组合多个域名集，并从域名集中每个网站的网页源代码里提取值：联系方式、社交主页、统计和标签 ID，以及正则表达式能匹配的任何内容。

接口

所有修改域名集的操作都是带 JSON 请求体的 POST，不使用 PUT 或 DELETE，因此任何能执行搜索的客户端也都能管理域名集。令牌、速率限制和错误格式都与搜索相同；/v1/account 返回结果中的域名集数据会显示您已有多少个域名集，以及今日还剩多少提取点数。

创建域名集

根据搜索创建：查询结果（最多为您套餐的每次搜索行数）即成为域名集。与 /v1/search 一样消耗一次搜索。

curl https://api.publicwww.com/v1/clusters \
     -H "Authorization: Bearer $PUBLICWWW_KEY" \
     -H "Content-Type: application/json" \
     -d '{"query": "\"googletagmanager.com/gtm.js\"", "name": "GTM sites"}'

{"id": 7, "name": "GTM sites", "size": 100000, "created": "2026-10-10T20:21:30Z",
 "query": "\"googletagmanager.com/gtm.js\"", "total": 2412577, "index_complete": true}

根据列表创建：提交域名或 URL，可以是 JSON 数组，也可以每行一个。只保留索引中已有的网站：submitted 是您提交的数量，size 是实际收入的数量。用列表创建不消耗任何配额。

curl https://api.publicwww.com/v1/clusters \
     -H "Authorization: Bearer $PUBLICWWW_KEY" \
     -H "Content-Type: application/json" \
     -d '{"domains": ["example.com", "https://www.example.org/about"], "name": "Prospects"}'

每个域名集的域名数量受套餐限制，每个账户最多保存 100 个域名集。已有 100 个时再创建，会返回 409 cluster_limit。系统不会替您删除任何域名集，请先删除不再需要的域名集。

组合域名集

curl https://api.publicwww.com/v1/clusters/combine \
     -H "Authorization: Bearer $PUBLICWWW_KEY" \
     -H "Content-Type: application/json" \
     -d '{"operation": "diff", "clusters": [7, 3], "name": "GTM, not yet contacted"}'

and 保留所有域名集共有的域名，or 保留任一域名集中的域名，diff 保留在第一个域名集中而不在第二个中的域名（必须正好两个）。组合不消耗任何配额。

提取数据

数据提取会读取域名集中每个网站已收录的网页，返回表达式捕获的内容，每个表达式对应一列。最简单的方式是使用预设：

也可以自己编写：用斜杠（或竖线）包围的正则表达式，可带 i、m、s、u 修饰符，最长 200 个字符。第一个捕获组即为提取的值，规则与 snipexp: 相同。每次调用最多十个表达式（含预设）。

curl https://api.publicwww.com/v1/clusters/7/extract \
     -H "Authorization: Bearer $PUBLICWWW_KEY" \
     -H "Content-Type: application/json" \
     -d '{"presets": ["gtm", "email"], "regex": ["/data-site-id=\"([0-9]+)\"/i"], "limit": 1000}'

{
  "cluster": 7, "name": "GTM sites", "size": 100000,
  "offset": 0, "scanned": 1000, "in_index": 1000, "with_matches": 941,
  "next_offset": 1000,
  "regex": ["/(GTM-[A-Z0-9]{4,10})\\b/", "/mailto:(...)/i", "/data-site-id=\"([0-9]+)\"/i"],
  "points_used": 1834.2, "points_left": 98165,
  "rows": [
    { "domain": "example.com", "values": [["GTM-AB12CD"], ["info@example.com"], []], "matches": 2 }
  ]
}

分批处理。每次调用从 offset 开始，最多处理域名集中的 1000 个网站。将 offset 设为 next_offset 再次调用，直到它返回 null。没有任何匹配的网站不会列出；设置 skip_empty=0 则同样列出。format=csv 时每个网站占一行（先是域名，然后每个表达式一列），下一个偏移量在 X-Next-Offset 响应头中。

点数。数据提取消耗您套餐的每日提取额度：索引中找到的每个网站，按在该网站上找到的值的数量消耗相应点数，一个都没有找到则消耗 0.1 点。点数用完时，调用会提前停止，返回 "stopped": "extract_quota_exceeded" 以及已获取的结果；没有剩余点数时调用会得到 429 extract_quota_exceeded。请先用较小的 limit 试用表达式，详见域名集限制。

用代码处理整个域名集

根据搜索创建域名集，并把每个网站提取出的值写入 CSV 文件。客户端库以现成函数和命令行工具的形式提供了同样的功能。

Python

import csv, os, time, requests

KEY  = os.environ["PUBLICWWW_KEY"]
BASE = "https://api.publicwww.com"
H    = {"Authorization": "Bearer " + KEY}

def call(method, path, body=None):
    while True:
        r = requests.request(method, BASE + path, headers=H, json=body)
        if r.status_code == 429 and r.json()["error"]["code"] == "too_many_requests":
            time.sleep(int(r.headers.get("Retry-After", 30)))
            continue
        r.raise_for_status()
        return r.json()

cluster = call("POST", "/v1/clusters", {"query": '"googletagmanager.com/gtm.js"'})
offset = 0
with open("extract.csv", "w", newline="") as f:
    out = csv.writer(f)
    while offset is not None:
        part = call("POST", "/v1/clusters/%d/extract" % cluster["id"],
                    {"presets": ["gtm", "email"], "offset": offset})
        for row in part["rows"]:
            out.writerow([row["domain"]] + [" ".join(v) for v in row["values"]])
        offset = part["next_offset"]

JavaScript (Node 18+)

const BASE = "https://api.publicwww.com";
const H = { Authorization: "Bearer " + process.env.PUBLICWWW_KEY,
            "Content-Type": "application/json" };

async function call(method, path, body) {
  for (;;) {
    const r = await fetch(BASE + path, { method, headers: H,
                                         body: body && JSON.stringify(body) });
    const data = await r.json();
    if (r.status === 429 && data.error.code === "too_many_requests") {
      await new Promise(ok => setTimeout(ok, 1000 * (r.headers.get("Retry-After") || 30)));
      continue;
    }
    if (!r.ok) throw new Error(data.error.message);
    return data;
  }
}

const cluster = await call("POST", "/v1/clusters", { query: '"hotjar.com"' });
for (let offset = 0; offset !== null; ) {
  const part = await call("POST", `/v1/clusters/${cluster.id}/extract`,
                          { presets: ["hotjar", "email"], offset });
  for (const row of part.rows) console.log(row.domain, row.values.map(v => v.join(" ")).join(";"));
  offset = part.next_offset;
}

PHP

<?php
function call ($method, $path, $body = null) {
    $ch = curl_init ("https://api.publicwww.com" . $path);
    curl_setopt_array ($ch, [
        CURLOPT_CUSTOMREQUEST  => $method,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_HTTPHEADER     => ["Authorization: Bearer " . getenv ("PUBLICWWW_KEY"),
                                   "Content-Type: application/json"],
        CURLOPT_POSTFIELDS     => $body === null ? null : json_encode ($body),
    ]);
    $data = json_decode (curl_exec ($ch), true);
    if (isset ($data ["error"])) throw new Exception ($data ["error"]["message"]);
    return $data;
}

$cluster = call ("POST", "/v1/clusters", ["query" => '"jquery.min.js"']);
$out = fopen ("extract.csv", "w");
for ($offset = 0; $offset !== null; ) {
    $part = call ("POST", "/v1/clusters/" . $cluster ["id"] . "/extract",
                  ["presets" => ["email", "phone"], "offset" => $offset]);
    foreach ($part ["rows"] as $row)
        fputcsv ($out, array_merge ([$row ["domain"]], array_map (fn ($v) => join (" ", $v), $row ["values"])));
    $offset = $part ["next_offset"];
}

Go

package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"net/http"
	"os"
	"strings"
)

func call(method, path string, body, out any) error {
	b, _ := json.Marshal(body)
	req, _ := http.NewRequest(method, "https://api.publicwww.com"+path, bytes.NewReader(b))
	req.Header.Set("Authorization", "Bearer "+os.Getenv("PUBLICWWW_KEY"))
	req.Header.Set("Content-Type", "application/json")
	resp, err := http.DefaultClient.Do(req)
	if err != nil {
		return err
	}
	defer resp.Body.Close()
	if resp.StatusCode >= 300 {
		return fmt.Errorf("publicwww: %s", resp.Status)
	}
	return json.NewDecoder(resp.Body).Decode(out)
}

func main() {
	var cluster struct{ ID int `json:"id"` }
	if err := call("POST", "/v1/clusters", map[string]any{"query": `"googletagmanager.com/gtm.js"`}, &cluster); err != nil {
		panic(err)
	}
	for offset := 0; ; {
		var part struct {
			Rows []struct {
				Domain string     `json:"domain"`
				Values [][]string `json:"values"`
			} `json:"rows"`
			NextOffset *int `json:"next_offset"`
		}
		path := fmt.Sprintf("/v1/clusters/%d/extract", cluster.ID)
		if err := call("POST", path, map[string]any{"presets": []string{"gtm", "ga4"}, "offset": offset}, &part); err != nil {
			panic(err)
		}
		for _, r := range part.Rows {
			cells := []string{r.Domain}
			for _, v := range r.Values {
				cells = append(cells, strings.Join(v, " "))
			}
			fmt.Println(strings.Join(cells, ";"))
		}
		if part.NextOffset == nil {
			break
		}
		offset = *part.NextOffset
	}
}

Ruby

require "json"
require "net/http"

def call(path, body)
  uri = URI("https://api.publicwww.com" + path)
  req = Net::HTTP::Post.new(uri, "Authorization" => "Bearer #{ENV.fetch('PUBLICWWW_KEY')}",
                                  "Content-Type" => "application/json")
  req.body = body.to_json
  res = Net::HTTP.start(uri.host, uri.port, use_ssl: true) { |h| h.request(req) }
  data = JSON.parse(res.body)
  raise data["error"]["message"] if data["error"]
  data
end

cluster = call("/v1/clusters", { query: '"hotjar.com"' })
offset = 0
while offset
  part = call("/v1/clusters/#{cluster['id']}/extract", { presets: %w[hotjar email], offset: offset })
  part["rows"].each { |r| puts [r["domain"], *r["values"].map { |v| v.join(" ") }].join(";") }
  offset = part["next_offset"]
end

错误

完整列表见错误页面，以及 API 自带的说明：https://api.publicwww.com/。在 AI 助手中，同样的操作以 MCP 工具的形式提供。