Mobile ad verification on carrier networks

Exit country and carrier ASN

Which market and which carrier network served the check. Look up the exit IP's ASN and store it with the result, since you choose the country, not the carrier.

Device profile used

User agent, viewport, pixel ratio and touch support. Without it you cannot reproduce or dispute a result.

Creative ID and screenshot

What actually rendered in the slot, captured as evidence. Compare against the approved creative.

Placement and surrounding content

The page and the content next to the ad, for brand safety. A correct creative in the wrong context is still a problem.

Click-through URL and landing page

Where the ad leads on mobile, resolved without clicking the ad. Mobile landing pages and app store redirects differ from desktop ones.

Seller declarations

For programmatic buys, the publisher's ads.txt or app-ads.txt entries, to check the seller in the bid path is authorised.

Timestamp and session ID

Pairs the check with your ad server's logs and tells you whether a run spanned more than one exit.

1. 01

   List carrier-targeted line items per country

   From the media plan, take the placements and line items that target carriers or mobile devices in DE, GB, US or JP. Anything outside those four countries needs a different method.

2. 02

   Generate mobile endpoints in the dashboard

   ARC Mobile connection strings are generated for you in the dashboard per country, as sticky or rotating, rather than composed by hand. Store them as secrets and read them in your script.

3. 03

   Load the placement with a real mobile device profile

   Use a browser automation tool with a mobile device descriptor so user agent, viewport and touch match a phone, and route it through the carrier endpoint.

   Playwright with a mobile profile on an ARC Mobile endpoint17 linescopy

   import osfrom urllib.parse import urlsplitfrom playwright.sync_api import sync_playwright# Copied from the dashboard: one ARC Mobile endpoint per country, as a URLp = urlsplit(os.environ["ARC_MOBILE_DE"])  # http://user:pass@host:portwith sync_playwright() as pw:    browser = pw.chromium.launch(proxy={        "server": f"http://{p.hostname}:{p.port}",        "username": p.username, "password": p.password,    })    ctx = browser.new_context(**pw.devices["Pixel 7"], locale="de-DE")    page = ctx.new_page()    page.goto("https://publisher.example.de/article", wait_until="networkidle")    page.screenshot(path="placement-de.png", full_page=True)    browser.close()

4. 04

   Capture, then resolve the click-through without clicking

   Store the screenshot, creative ID and surrounding content. Read the ad's click-through URL from the page and resolve it hop by hop, as in affiliate link monitoring, instead of tapping the ad.

5. 05

   Pair with a residential check for the city dimension

   Where a campaign is also geo-fenced to a city, run a second check on ARC Fast with city targeting. Report the two as separate dimensions rather than claiming one check proved both.

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