An IAB Tech Lab standard that lets app publishers declare which ad networks are authorized to sell their inventory.

Where do I put the app-ads.txt file?

At the root of the developer website listed in your App Store / Google Play page, e.g. https://studio.com/app-ads.txt.

What is a Certification Authority ID?

An optional TAG-ID of the ad system, the 4th field of an app-ads.txt record.

candywriter.com app-ads.txt check

candywriter.com is missing out on higher CPMs: its app-ads.txt has 5 invalid lines and lists only 7,291 of the 8,951 lines its 28 ad networks expect (19% missing). Unlisted sellers can't be verified, so buyers bid less or skip the inventory.

Checked 20 Oct 2026. 6,969 lines, 5,595 unique records, 1,369 duplicates, 5 invalid lines, 41 ad networks detected.

Ad networks in candywriter.com/app-ads.txt

Google AdMob — accounts pub-8813021242581700, pub-7279990999620104, pub-5781531207509232: 3 lines in the file
Smaato — accounts 1100044115, 1100049326, 1100057599 and 4 more: 7 lines in the file
InMobi — accounts 2a7b872e47cc436d8e31d9ffceb261e5, cb6a6239dfec478f818c1ffca00ca440, ddb41d8a9f434a918d05a0fc9999d9f9: 211 lines in the file, 63 expected lines missing
Mintegral — account 19259: 400 lines in the file, 63 expected lines missing
Unity Ads — accounts 20047, 1048191: 131 lines in the file, 31 expected lines missing
ironSource / LevelPlay — account 226593: 101 lines in the file, 25 expected lines missing
DT Exchange (Fyber) — account 209276: 400 lines in the file, 13 expected lines missing
Liftoff Monetize (Vungle) — account 561e8d936b8d90f61a0014bf: 361 lines in the file, 30 expected lines missing
AppLovin — account 8f9045013f140fb4d3499dd3f793c728: 34 lines in the file, 2 expected lines missing
Amazon Publisher Services — accounts 8957906, 2641d076-d2eb-4ef1-88d2-569abe1dbac2, 42df5c79-9a6a-4118-b46f-dd311cf16fb8: 3 lines in the file
PubMatic — accounts 160565, 159078, 162223 and 3 more: 6 lines in the file
Meta Audience Network — account 212109982471558: 1 line in the file
Yahoo — account 54969: 1 line in the file
Chartboost — account 53725aabc26ee432b7da37b2: 400 lines in the file, 1 expected line missing
HyprMX — account 1729876546: 352 lines in the file, 18 expected lines missing
TikTok Ad Network (Pangle) — account 9898: 1 line in the file
Criteo — account B-066465: 1 line in the file
Magnite (Rubicon) — accounts 26980, 27420, 27642 and 3 more: 6 lines in the file
Bidmachine — account 665: 400 lines in the file, 400 expected lines missing
Verve (PubNative) — accounts 1009800, 1017355, 1016935: 400 lines in the file, 108 expected lines missing
Sovrn — accounts 560797, 560797-eb, 411915 and 2 more: 5 lines in the file
Xandr (Microsoft) — accounts 9726, 12252: 2 lines in the file
Ogury — account 5bbe7af9-d51f-499e-a804-db54798d96f4: 11 lines in the file, 7 expected lines missing
OpenX — accounts 559912325, 563905670: 2 lines in the file
Start.io — account 163241862: 88 lines in the file, 70 expected lines missing
TripleLift — accounts 13041, 6998, 13686 and 1 more: 4 lines in the file
Maticoo (zMaticoo) — account 5135063: 263 lines in the file, 182 expected lines missing
BIGO Ads — account 9yi9pbncwm: 400 lines in the file, 45 expected lines missing
Yandex Ads — partner (reseller) lines only: 143 lines in the file, 25 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 106 lines in the file, 38 expected lines missing
Yango Ads — partner (reseller) lines only: 400 lines in the file, 400 expected lines missing
Bidease — partner (reseller) lines only: 39 lines in the file, 10 expected lines missing
BlueSea — partner (reseller) lines only: 18 lines in the file, 19 expected lines missing
Display.io — partner (reseller) lines only: 11 lines in the file, 21 expected lines missing
DSP Exchange — partner (reseller) lines only: 400 lines in the file, 129 expected lines missing
Madex — partner (reseller) lines only: 9 lines in the file, 9 expected lines missing
Monetrix — partner (reseller) lines only: 52 lines in the file, 41 expected lines missing
Prado — partner (reseller) lines only: 19 lines in the file, 8 expected lines missing
Kidoz — partner (reseller) lines only: 15 lines in the file, 7 expected lines missing
CAS.ai — partner (reseller) lines only: 140 lines in the file, 25 expected lines missing
DSail — partner (reseller) lines only: 140 lines in the file, 25 expected lines missing

Invalid lines

imds.tv,82531, ESELLER,ae6c32151e71f19d
google
pubmatic.com, 156520, RESELLER, 5d62403b186f2ace (key account for SEA)
pubmatic.com, 160456, RESELLER, 5d62403b186f2ace (key account for India)
uis.mobfox.com, 2310, RESELLER 5529a3d1f59865be

Corrected file: candywriter.com app-ads.txt (fixed).

FAQ

Does candywriter.com have an app-ads.txt?

Yes — https://candywriter.com/app-ads.txt has 6,969 lines (checked 20 Oct 2026).

Which ad networks does candywriter.com work with?

Its app-ads.txt lists Google AdMob, Smaato, InMobi, Mintegral, Unity Ads, ironSource / LevelPlay, DT Exchange (Fyber), Liftoff Monetize (Vungle), AppLovin, Amazon Publisher Services, PubMatic, Meta Audience Network and 29 more.

candywriter.com app-ads.txt check

Ad networks in candywriter.com/app-ads.txt

Invalid lines

FAQ

Does candywriter.com have an app-ads.txt?

Which ad networks does candywriter.com work with?

Is the app-ads.txt of candywriter.com correct?

Other checked domains

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