GoogleAds conversion - multiple network requests - what for?

3 comments.

1. Jakub Kriz
   July 15th, 2020 at 11:36 am
   var script = document.createElement('script'); script.src = "https://www.googletagmanager.com/gtag/js?id=AW-XYZ"; document.querySelector("head").appendChild(script);

   Inits download of gtag core library from https://www.googletagmanager.com/gtag/js?id=AW-XYZ

   gtag('config', 'AW-XYZ');

   Init gtag's tracker.

   Next, you track conversion:

   gtag('event', 'conversion', { 'send_to': 'AW-XYZ/abc123', 'transaction_id': '123456789' });

   JavaScript for conversions is downloaded:

   https://www.google.com/pagead/conversion_async.js

   It makes first tracking request.

   This goes into https://www.google.com/**pagead/1p-conversion**/XYZ/

   Cookie is dropped:

   SIDCC=AJi4QfEKDZ05LwN4g23OLyoW…in=.google.com; priority=high Permanent Cookies SIDCC AJi4QfEKDZ05LwN4g23OLyoW017 Expires Fri, 02-Jul-2021 10:46:18 GMT Domain .google.com Path / Other attributes priority high

   Then Doubleclick (in this case a DMP platform) is contacted.

   https://googleads.g.doubleclick.net/**pagead/viewthroughconversion**/XYZ/

   It also contains small JavaScript that makes doubleclick request.

   (function() { var s = {}; (function() { /* Copyright The Closure Library Authors. SPDX-License-Identifier: Apache-2.0 */ var c = this || self; var f = /#|$/; function l(d) { var g = d.search(f), a; a: { for (a = 0; 0 <= (a = d.indexOf("fmt", a)) && a < g;) { var b = d.charCodeAt(a - 1); if (38 == b || 63 == b) if (b = d.charCodeAt(a + 3), !b || 61 == b || 38 == b || 35 == b) break a; a += 4 } a = -1 } if (0 > a) return null; b = d.indexOf("&", a); if (0 > b || b > g) b = g; a += 4; return decodeURIComponent(d.substr(a, b - a).replace(/\+/g, " ")) }; function n(d, g, a) { function b() { --p; if (0 >= p) { var e; (e = d.GooglebQhCsO) || (e = {}); var q = e[g]; q && (delete e[g], (e = q[0]) && e.call && e()) } } for (var p = a.length + 1, m = 0; m < a.length; m++) { var h = l(a[m]), k = null; 1 != h && 2 != h || !(h = d.document.getElementById("goog_conv_iframe")) || h.src || (k = h); k || (k = new Image); k.onload = b; k.src = a[m] } b() } var r = ["ss_"], t = s || c; r[0] in t || "undefined" == typeof t.execScript || t.execScript("var " + r[0]); for (var u; r.length && (u = r.shift());) r.length || void 0 === n ? t[u] && t[u] !== Object.prototype[u] ? t = t[u] : t = t[u] = {} : t[u] = n; }).call(this);; s.ss_(window, 'OjE1OTM2ODY3Nzg2Mjc', ['https://www.google.com/pagead/1p-user-list/XYZ/?random\x3d1593686778627\x26cv\x3d9\x26fst\x3d1593684000000\x26num\x3d1\x26bg\x3dffffff\x26guid\x3dON\x26u_h\x3d920\x26u_w\x3d1472\x26u_ah\x3d920\x26u_aw\x3d1472\x26u_cd\x3d24\x26u_his\x3d3\x26u_tz\x3d120\x26u_java\x3dfalse\x26u_nplug\x3d0\x26u_nmime\x3d0\x26gtm\x3d2oa6o0\x26sendb\x3d1\x26data\x3devent%3Dgtag.config\x26frm\x3d0\x26url\x3dhttps%3A%2F%2Fwww.optimics.cz%2F\x26tiba\x3dOptimics%20%7C%20Chytr%C3%BD%20online%20marketing%20d%C3%ADky%20analytice\x26async\x3d1\x26fmt\x3d3\x26is_vtc\x3d1\x26random\x3d2253878667\x26resp\x3dGooglemKTybQhCsO\x26rmt_tld\x3d0\x26ipr\x3dy', 'https://www.google.cz/pagead/1p-user-list/XYZ/?random\x3d1593686778627\x26cv\x3d9\x26fst\x3d1593684000000\x26num\x3d1\x26bg\x3dffffff\x26guid\x3dON\x26u_h\x3d920\x26u_w\x3d1472\x26u_ah\x3d920\x26u_aw\x3d1472\x26u_cd\x3d24\x26u_his\x3d3\x26u_tz\x3d120\x26u_java\x3dfalse\x26u_nplug\x3d0\x26u_nmime\x3d0\x26gtm\x3d2oa6o0\x26sendb\x3d1\x26data\x3devent%3Dgtag.config\x26frm\x3d0\x26url\x3dhttps%3A%2F%2Fwww.optimics.cz%2F\x26tiba\x3dOptimics%20%7C%20Chytr%C3%BD%20online%20marketing%20d%C3%ADky%20analytice\x26async\x3d1\x26fmt\x3d3\x26is_vtc\x3d1\x26random\x3d2253878667\x26resp\x3dGooglemKTybQhCsO\x26rmt_tld\x3d1\x26ipr\x3dy']); })();

   302 Redirect following this request was in my case unsuccessfull HTTP2 handshake request. With http2_handshake_failed base64 encoded information.

   Then you are requesting global Google user list:

   https://www.google.com/**pagead/1p-user-list**/XYZ/

   And local user list:

   https://www.google.de/**pagead/1p-user-list**/XYZ/

   User lists

   Documentation

   UserList object is a list of users an account may target.

   And pixel request setting test_cookie checking your privacy options.

   This cookies represent your Google's Ad Settings.

   https://googleads.g.doubleclick.net/**pagead/viewthroughconversion**/XYZ/

   Permanent Cookies test_cookie CheckForPermission Expires Thu, 02-Jul-2020 11:01:19 GMT Domain .doubleclick.net Path / Secure true Other attributes SameSite none

   If you are interested more in Google's cookies, follow this link https://www.gresearch.co.uk/cookie-policy/

   Reply
   1. funkfux
      July 13th, 2020 at 01:00 pm

      thank you! can you elaborate a little bit about the purpose of those requests? why is doubleclick contacted in case of a simple GoogleAds conversion, what about those different "user lists" and why is Google checking my privacy options here?

      Reply
   2. Jakub Kriz
      July 13th, 2020 at 03:40 pm

      @funkfux Hi, Doubleclick is Google's network providing most of services for ad business. It runs multiple products such as Doubleclick, AdWords, Demographic reports in Analytics, etc... User Lists are list of targetable users and Privacy options are related to Ad Settings. I add both into the reply.

      Reply