Ad system
mgid.com
Most of the 103,282 apps that declare mgid.com reach it through a reseller: 98% have a RESELLER line, 31% a DIRECT one (13,811 files, 422 of them through infolinks.com's account). 97% of the 33,558 lines checked name an account its sellers.json (2,554 sellers) does not list. 52 sellers left its sellers.json in the last 30 days.
- Apps declaring it
- 103,282
- Sellers in sellers.json
- 2,554
- Lines verified
- 1.9%
- Lines with errors
- 32,578
- Avg. supply path score
- 49.6 / 100
32,206 DIRECT · 100,976 RESELLER
0% confidential
648 of 33,680 checked lines
33,680 lines in total
101,607 apps scored
App counts, the sellers.json breakdown and the directory ranking are as of , recomputed daily (the same numbers as the directory). Line counts are recounted every 10 minutes. sellers.json last read 14 October 2026. The supply path score sums up how short and clean the declared paths are, 0 to 100 (how it is computed).
How to add mgid.com to app-ads.txt
One line per account, in the app-ads.txt at the root of the domain your App Store and Google Play listings name as the developer website.
mgid.com, YOUR_ACCOUNT_ID, DIRECT, d4c29acad76ce94f
mgid.com, YOUR_ACCOUNT_ID, RESELLER, d4c29acad76ce94f- Field 1:
mgid.com, the domain mgid.com uses in app-ads.txt. - Field 2: your account ID with mgid.com. It must equal the
seller_idin mgid.com's sellers.json. - Field 3: DIRECT if you hold the account, RESELLER if a partner holds it and sells your inventory. DIRECT vs RESELLER
- Field 4 (optional):
d4c29acad76ce94f, the certification authority ID on 100% of the lines naming mgid.com.
sellers.json at a glance
- Status
- Published
- Sellers listed
- 2,554
- Confidential
- 0 (0%)
- Passthrough
- 0
- Removed, last 30 days
- 52
- Last read
- Oct 14, 2026
- PUBLISHER2,543
- INTERMEDIARY6
- BOTH5
Cross-check of lines naming mgid.com
- Verified 648
- Seller ID not found 32,527
- DIRECT but intermediary 3
- RESELLER but publisher 48
- Seller type BOTH 454
- Confidential seller 0
- No sellers.json 0
- Unchecked 0
Every line naming mgid.com is looked up in its sellers.json. What each status means
Common errors with mgid.com lines
-
Seller ID not found
32,527 lines
Ask mgid.com for the account ID it lists for you in its sellers.json, correct the line, or remove it if you no longer work with them. Buyers that check sellers.json drop these paths.
-
Seller type BOTH
454 lines
The account is listed as BOTH, so sellers.json alone cannot tell a buyer which relationship applies. Nothing to fix on your side; buyers usually look at the seller's domain.
-
RESELLER but publisher
48 lines
If the account is yours, declare it DIRECT. If a partner holds it, ask mgid.com why the account is listed as PUBLISHER.
-
DIRECT but intermediary
3 lines
If a partner holds this account and resells your inventory, the line should say RESELLER. If the account is yours, ask mgid.com to list it as PUBLISHER.
Intermediaries most declared as RESELLER
Accounts on mgid.com that its sellers.json lists as INTERMEDIARY or BOTH, by the number of app-ads.txt files declaring them. Confidential sellers are left out.
| Seller domain | Type | Files |
|---|---|---|
| infolinks.com | BOTH | 422 |
| bidmatic.io | INTERMEDIARY | 45 |
| adplay.it | BOTH | 13 |
| google.com | INTERMEDIARY | 13 |
| azerion.com | INTERMEDIARY | 7 |
Apps that declare mgid.com
| App | Store | Relationship | Status |
|---|---|---|---|
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live |
Questions about mgid.com
Does mgid.com publish a sellers.json?
Yes. Its file at https://www.mgid.com/sellers.json listed 2,554 sellers when we last read it on 14 October 2026: 2,543 publishers, 6 intermediaries and 5 listed as both; 0% are confidential.
How many apps declare mgid.com in app-ads.txt?
103,282 apps in Stoqlab's data (delisted apps included) declare mgid.com: 32,206 with at least one DIRECT line and 100,976 with at least one RESELLER line, across 13,811 app-ads.txt files, as of 14 October 2026 (recounted daily).
What is the certification authority ID for mgid.com?
100% of the app-ads.txt lines naming mgid.com carry "d4c29acad76ce94f" in the fourth field. The field is optional; the IAB Tech Lab ads.txt 1.1 specification says identifiers in sellers.json supersede it, so a missing or different value does not make a line invalid.
Why do mgid.com lines fail verification?
Of 33,680 lines naming mgid.com, 32,578 contradict its sellers.json. The most common case is "Seller ID not found", on 32,527 lines. Ask mgid.com for the account ID it lists for you in its sellers.json, correct the line, or remove it if you no longer work with them. Buyers that check sellers.json drop these paths.
Not sure whether your line should say DIRECT or RESELLER? DIRECT vs RESELLER in app-ads.txt
Sources: the public app-ads.txt files of tracked apps and the sellers.json of mgid.com. Something wrong? Tell us.