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.

fotocasa.es app-ads.txt check

fotocasa.es is missing out on higher CPMs: its app-ads.txt has 2 invalid lines and lists only 109 of the 324 lines its 13 ad networks expect (66% missing). Unlisted sellers can't be verified, so buyers bid less or skip the inventory.

Checked 19 Oct 2026. 1,262 lines, 817 unique records, 59 duplicates, 2 invalid lines, 31 ad networks detected.

Ad networks in fotocasa.es/app-ads.txt

Xandr (Microsoft) — accounts 9623, 3296, 3703 and 1 more: 4 lines in the file
Magnite (Rubicon) — accounts 20884, 15052, 210526 and 2 more: 5 lines in the file
OpenX — accounts 540938618, 557939709: 2 lines in the file
Criteo — account B-056930: 1 line in the file
Index Exchange — accounts 186407, 200570, 190387 and 3 more: 6 lines in the file
Sovrn — accounts 267370, 267370-eb, 456186: 3 lines in the file
TripleLift — accounts 3084, 3084-EB, 2985 and 1 more: 4 lines in the file
Amazon Publisher Services — accounts 8b48e249-e9e6-4a52-8b48-396ea93403e8, 2840f06c-5d89-4853-a03e-3bfa567dd33c, 48266a61-b3d9-4cb7-b172-553abc6a42a4 and 1 more: 4 lines in the file
InMobi — account 4fcebe6f9a714a95b066cfdbd5d354d4: 66 lines in the file, 206 expected lines missing
Google AdMob — accounts pub-7734005103835923, pub-6827928157405615, anuntis-es and 2 more: 5 lines in the file
Ogury — account 5a93b205-d86c-4e96-a62e-01f593889ed0: 9 lines in the file, 9 expected lines missing
Meta Audience Network — account 129415402912458: 1 line in the file
PubMatic — accounts 162001, 162167, 164039: 3 lines in the file
Mintegral — partner (reseller) lines only: 97 lines in the file, 400 expected lines missing
Unity Ads — partner (reseller) lines only: 12 lines in the file, 148 expected lines missing
ironSource / LevelPlay — partner (reseller) lines only: 13 lines in the file, 112 expected lines missing
Liftoff Monetize (Vungle) — partner (reseller) lines only: 54 lines in the file, 336 expected lines missing
Chartboost — partner (reseller) lines only: 83 lines in the file, 400 expected lines missing
DT Exchange (Fyber) — partner (reseller) lines only: 40 lines in the file, 400 expected lines missing
Yandex Ads — partner (reseller) lines only: 25 lines in the file, 143 expected lines missing
VK Ads (myTarget) — partner (reseller) lines only: 23 lines in the file, 121 expected lines missing
BIGO Ads — partner (reseller) lines only: 106 lines in the file, 400 expected lines missing
Yango Ads — partner (reseller) lines only: 225 lines in the file, 400 expected lines missing
DSP Exchange — partner (reseller) lines only: 115 lines in the file, 400 expected lines missing
Maticoo (zMaticoo) — partner (reseller) lines only: 52 lines in the file, 392 expected lines missing
Verve (PubNative) — partner (reseller) lines only: 79 lines in the file, 400 expected lines missing
HyprMX — partner (reseller) lines only: 32 lines in the file, 337 expected lines missing
Start.io — partner (reseller) lines only: 17 lines in the file, 140 expected lines missing
CAS.ai — partner (reseller) lines only: 25 lines in the file, 140 expected lines missing
DSail — partner (reseller) lines only: 25 lines in the file, 140 expected lines missing
Bidmachine — partner (reseller) lines only: 177 lines in the file, 400 expected lines missing

Invalid lines

triplelift.com,10213-EB,direct, 6c33edb13117fd86 = Google OB
triplelift.com,10213,direct, 6c33edb13117fd86 = Prebid header

Corrected file: fotocasa.es app-ads.txt (fixed).

FAQ

Does fotocasa.es have an app-ads.txt?

Yes — https://fotocasa.es/app-ads.txt has 1,262 lines (checked 19 Oct 2026).

Which ad networks does fotocasa.es work with?

Its app-ads.txt lists Xandr (Microsoft), Magnite (Rubicon), OpenX, Criteo, Index Exchange, Sovrn, TripleLift, Amazon Publisher Services, InMobi, Google AdMob, Ogury, Meta Audience Network and 19 more.

fotocasa.es app-ads.txt check

Ad networks in fotocasa.es/app-ads.txt

Invalid lines

FAQ

Does fotocasa.es have an app-ads.txt?

Which ad networks does fotocasa.es work with?

Is the app-ads.txt of fotocasa.es correct?

Other checked domains

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