Ad network and mediation
ironSource (Unity)
ironsrc.com
ironsrc.com is the domain of ironSource's in-app ad network and its LevelPlay mediation platform. ironSource merged with Unity in 2022.
98,170 apps across 12,336 app-ads.txt files declare ironsrc.com; 92% hold a DIRECT account and 52% list it as a RESELLER. Of 40,160 lines checked against its sellers.json (5,250 sellers), 46% match, 11% name an unlisted account and 42% declare the wrong seller type. 53% of the lines carry the certification ID 79929e88b2ba73bc.
- Apps declaring it
- 98,170
- Sellers in sellers.json
- 5,250
- Lines verified
- 46%
- Lines with errors
- 22,618
- Avg. supply path score
- 50.0 / 100
90,090 DIRECT · 50,774 RESELLER
0% confidential
19,596 of 42,214 checked lines
42,214 lines in total
102,025 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 12 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 ironSource (Unity) 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.
ironsrc.com, YOUR_ACCOUNT_ID, DIRECT, 79929e88b2ba73bc
ironsrc.com, YOUR_ACCOUNT_ID, RESELLER, 79929e88b2ba73bc
- Field 1:
ironsrc.com, the domain ironSource (Unity) uses in app-ads.txt. - Field 2: your account ID with ironSource (Unity). It must equal the
seller_idin ironSource (Unity)'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):
79929e88b2ba73bc, the certification authority ID on 53% of the lines naming ironsrc.com.
sellers.json at a glance
- Status
- Published
- Sellers listed
- 5,250
- Confidential
- 0 (0%)
- Passthrough
- 0
- Removed, last 30 days
- 0
- Last read
- Oct 12, 2026
- PUBLISHER5,250
- INTERMEDIARY0
- BOTH0
Cross-check of lines naming ironsrc.com
- Verified 19,596
- Seller ID not found 4,732
- DIRECT but intermediary 0
- RESELLER but publisher 17,886
- Seller type BOTH 0
- Confidential seller 0
- No sellers.json 0
- Unchecked 0
Every line naming ironsrc.com is looked up in its sellers.json. What each status means
Common errors with ironsrc.com lines
-
RESELLER but publisher
17,886 lines
If the account is yours, declare it DIRECT. If a partner holds it, ask ironSource (Unity) why the account is listed as PUBLISHER.
-
Seller ID not found
4,732 lines
Ask ironSource (Unity) 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.
Apps that declare ironsrc.com
| App | Store | Relationship | Status |
|---|---|---|---|
| iOS | DIRECT | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT | Live | |
| Android | DIRECT | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT | Live | |
| iOS | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT | Live |
Questions about ironSource (Unity)
Does ironSource (Unity) publish a sellers.json?
Yes. Its file at https://www.ironsrc.com/sellers.json listed 5,250 sellers when we last read it on 12 October 2026: 5,250 publishers, 0 intermediaries and 0 listed as both; 0% are confidential.
How many apps declare ironSource (Unity) in app-ads.txt?
98,170 apps in Stoqlab's data (delisted apps included) declare ironsrc.com: 90,090 with at least one DIRECT line and 50,774 with at least one RESELLER line, across 12,336 app-ads.txt files, as of 13 October 2026 (recounted daily).
What is the certification authority ID for ironSource (Unity)?
53% of the app-ads.txt lines naming ironsrc.com carry "79929e88b2ba73bc" 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 ironsrc.com lines fail verification?
Of 42,214 lines naming ironsrc.com, 22,618 contradict its sellers.json. The most common case is "RESELLER but publisher", on 17,886 lines. If the account is yours, declare it DIRECT. If a partner holds it, ask ironSource (Unity) why the account is listed as PUBLISHER.
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 ironsrc.com. Something wrong? Tell us.