Ejemplos de código

La misma búsqueda en varios lenguajes: encontrar los sitios que cargan un script determinado, paginar los resultados y esperar como es debido cuando el servidor lo pide. Guarda tu clave en una variable de entorno en lugar de en el archivo.

Lo mismo, empaquetado como pequeños clientes con línea de comandos, solo con la biblioteca estándar: Python, JavaScript, PHP, Go, Ruby. En una hoja de cálculo: Google Sheets. En una tabla de prospección: Clay.

curl

export PUBLICWWW_KEY=...

# One page of results
curl -H "Authorization: Bearer $PUBLICWWW_KEY" \
     --get --data-urlencode 'query="angular.min.js"' --data 'per_page=20' \
     https://api.publicwww.com/v1/search

# Every match, as a plain list of urls
curl -H "Authorization: Bearer $PUBLICWWW_KEY" \
     --get --data-urlencode 'query="angular.min.js"' \
     --data 'format=txt&per_page=100000' \
     https://api.publicwww.com/v1/search > sites.txt

# A long, multi-line query is easier as a POST
curl https://api.publicwww.com/v1/search \
     -H "Authorization: Bearer $PUBLICWWW_KEY" \
     -H "Content-Type: application/json" \
     -d '{"query": ["\"angular.min.js\"", "\"bootstrap.min.css\""], "per_page": 50}'

Python

import os, time, requests

KEY  = os.environ["PUBLICWWW_KEY"]
BASE = "https://api.publicwww.com"

def search(query, **params):
    """One page of results, waiting out the rate limit if asked to."""
    while True:
        r = requests.get(BASE + "/v1/search",
                         headers={"Authorization": "Bearer " + KEY},
                         params={"query": query, **params})
        if r.status_code == 429:
            body = r.json()["error"]
            if body["code"] != "too_many_requests":
                raise RuntimeError(body["message"])       # quota, not pace
            time.sleep(int(r.headers.get("Retry-After", 30)))
            continue
        r.raise_for_status()
        return r.json()

page = search('"angular.min.js"', per_page=20)
print(page["total"], "sites match")
for row in page["results"]:
    print(row["rank"], row["domain"], row["url"])

Transmitir un conjunto grande de resultados

import json, os, requests

r = requests.get("https://api.publicwww.com/v1/search",
                 headers={"Authorization": "Bearer " + os.environ["PUBLICWWW_KEY"]},
                 params={"query": '"angular.min.js"',
                         "format": "ndjson", "per_page": 1000000},
                 stream=True)
r.raise_for_status()

meta = None
for line in r.iter_lines():
    if not line:
        continue
    obj = json.loads(line)
    if obj.get("object") == "meta":          # always the first line
        meta = obj
        print("expecting", meta["returned"], "of", meta["total"])
        continue
    print(obj["domain"])

PHP

<?php
$key = getenv ("PUBLICWWW_KEY");

$url = "https://api.publicwww.com/v1/search?" . http_build_query (array (
	"query"    => '"angular.min.js"',
	"per_page" => 20,
));

$ch = curl_init ($url);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt ($ch, CURLOPT_HTTPHEADER, array ("Authorization: Bearer " . $key));

$body   = curl_exec ($ch);
$status = curl_getinfo ($ch, CURLINFO_HTTP_CODE);
curl_close ($ch);

$data = json_decode ($body, true);

if ($status != 200) {
	die ($data ["error"] ["code"] . ": " . $data ["error"] ["message"] . "\n");
}

echo $data ["total"] . " sites match\n";
foreach ($data ["results"] as $r) {
	echo $r ["rank"] . "\t" . $r ["domain"] . "\t" . $r ["url"] . "\n";
}

JavaScript (Node)

const KEY  = process.env.PUBLICWWW_KEY;
const BASE = "https://api.publicwww.com";

async function search (query, params = {}) {
  const url = new URL (BASE + "/v1/search");
  url.searchParams.set ("query", query);
  for (const [k, v] of Object.entries (params)) url.searchParams.set (k, v);

  for (;;) {
    const res  = await fetch (url, { headers: { Authorization: `Bearer ${KEY}` } });
    const body = await res.json ();

    if (res.status === 429 && body.error.code === "too_many_requests") {
      await new Promise (r => setTimeout (r, body.error.retry_after * 1000));
      continue;                                   // told to wait, not refused
    }
    if (!res.ok) throw new Error (`${body.error.code}: ${body.error.message}`);
    return body;
  }
}

const page = await search ('"angular.min.js"', { per_page: 20 });
console.log (page.total, "sites match");
for (const r of page.results) console.log (r.rank, r.domain, r.url);

Go

package main

import (
	"encoding/json"
	"fmt"
	"net/http"
	"net/url"
	"os"
)

type Result struct {
	Domain string `json:"domain"`
	URL    string `json:"url"`
	Rank   *int   `json:"rank"`          // nil when the site has no rank
}

type Page struct {
	Total   int      `json:"total"`
	Results []Result `json:"results"`
}

func main () {
	q := url.Values{}
	q.Set ("query", `"angular.min.js"`)
	q.Set ("per_page", "20")

	req, _ := http.NewRequest ("GET", "https://api.publicwww.com/v1/search?"+q.Encode (), nil)
	req.Header.Set ("Authorization", "Bearer "+os.Getenv ("PUBLICWWW_KEY"))

	res, err := http.DefaultClient.Do (req)
	if err != nil { panic (err) }
	defer res.Body.Close ()

	if res.StatusCode != 200 {
		fmt.Println ("http", res.StatusCode, res.Header.Get ("Retry-After"))
		os.Exit (1)
	}

	var page Page
	json.NewDecoder (res.Body).Decode (&page)

	fmt.Println (page.Total, "sites match")
	for _, r := range page.Results {
		fmt.Println (r.Domain, r.URL)
	}
}

Ruby

require "json"
require "net/http"

KEY = ENV.fetch ("PUBLICWWW_KEY")

uri = URI ("https://api.publicwww.com/v1/search")
uri.query = URI.encode_www_form (query: '"angular.min.js"', per_page: 20)

req = Net::HTTP::Get.new (uri)
req["Authorization"] = "Bearer #{KEY}"

res = Net::HTTP.start (uri.host, uri.port, use_ssl: true) { |http| http.request (req) }
body = JSON.parse (res.body)

abort "#{body['error']['code']}: #{body['error']['message']}" unless res.code == "200"

puts "#{body['total']} sites match"
body["results"].each { |r| puts [r["rank"], r["domain"], r["url"]].join ("\t") }

Cargar en una hoja de cálculo o en una tubería de shell

# A csv of domain and rank, ready for a spreadsheet
curl -H "Authorization: Bearer $PUBLICWWW_KEY" \
     --get --data-urlencode 'query="angular.min.js"' \
     --data 'format=csv&header=1&delimiter=,&per_page=10000' \
     https://api.publicwww.com/v1/search > sites.csv

# Just the domains, one per line, into whatever comes next
curl -H "Authorization: Bearer $PUBLICWWW_KEY" \
     --get --data-urlencode 'query="angular.min.js"' \
     --data 'format=csv&columns=domain&per_page=10000' \
     https://api.publicwww.com/v1/search | sort -u

Detalles que conviene cuidar

Siguiente Google Sheets