Ad system
synacor.com
synacor.com is the domain an ad system uses in app-ads.txt and ads.txt files. 96,475 apps in our data declare it. Its sellers.json lists 113 sellers.
- Apps declaring it
- 96,475
- Sellers in sellers.json
- 113
- Lines verified
- 0.2%
- Lines with errors
- 29,756
- Avg. supply path score
- 49.2 / 100
22,763 DIRECT · 94,333 RESELLER
0% confidential
71 of 29,829 checked lines
29,829 lines in total
91,166 apps scored
Apps and lines are recounted every 10 minutes. The sellers.json breakdown and the directory ranking are as of , recomputed daily. sellers.json last read 10 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 synacor.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.
synacor.com, YOUR_ACCOUNT_ID, DIRECT, e108f11b2cdf7d5b
synacor.com, YOUR_ACCOUNT_ID, RESELLER, e108f11b2cdf7d5b- Field 1:
synacor.com, the domain synacor.com uses in app-ads.txt. - Field 2: your account ID with synacor.com. It must equal the
seller_idin synacor.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):
e108f11b2cdf7d5b, the certification authority ID on 99% of the lines naming synacor.com.
sellers.json at a glance
- Status
- Published
- Sellers listed
- 113
- Confidential
- 0 (0%)
- Passthrough
- 0
- Removed, last 30 days
- 2
- Last read
- Oct 10, 2026
- PUBLISHER92
- INTERMEDIARY13
- BOTH8
Cross-check of lines naming synacor.com
- Verified 71
- Seller ID not found 29,756
- DIRECT but intermediary 0
- RESELLER but publisher 0
- Seller type BOTH 2
- Confidential seller 0
- No sellers.json 0
- Unchecked 0
Every line naming synacor.com is looked up in its sellers.json. What each status means
Common errors with synacor.com lines
-
Seller ID not found
29,756 lines
Ask synacor.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
2 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.
Intermediaries most declared as RESELLER
Accounts on synacor.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 |
|---|---|---|
| gourmetads.com | INTERMEDIARY | 62 |
Apps that declare synacor.com
| App | Store | Relationship | Status |
|---|---|---|---|
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | DIRECT + RESELLER | Live | |
| Android | DIRECT + 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 | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live | |
| Android | RESELLER | Live |
Questions about synacor.com
How do I add synacor.com to app-ads.txt?
Add one line for each account synacor.com gives you: "synacor.com, YOUR_ACCOUNT_ID, DIRECT, e108f11b2cdf7d5b". Use DIRECT when you hold the account yourself and RESELLER when a partner holds it and sells your inventory through synacor.com. The account ID must be the seller_id synacor.com lists for you in its sellers.json; synacor.com will give it to you. Put the file at the root of the domain named as your developer website in the App Store and Google Play listings.
Does synacor.com publish a sellers.json?
Yes. Its file at https://contango-cdn.technoratimedia.com/sellers.json listed 113 sellers when we last read it on 10 October 2026: 92 publishers, 13 intermediaries and 8 listed as both; 0% are confidential.
How many apps declare synacor.com in app-ads.txt?
96,475 apps in Stoqlab's data (delisted apps included) declare synacor.com: 22,763 with at least one DIRECT line and 94,333 with at least one RESELLER line, across 12,494 app-ads.txt files. Counts are recomputed daily.
What is the certification authority ID for synacor.com?
99% of the app-ads.txt lines naming synacor.com carry "e108f11b2cdf7d5b" 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 synacor.com lines fail verification?
Of 29,829 lines naming synacor.com, 29,756 contradict its sellers.json. The most common case is "Seller ID not found" (29,756 lines): Ask synacor.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.
What is the difference between DIRECT and RESELLER?
DIRECT means the publisher owns the account; RESELLER means an intermediary sells the inventory on the publisher's behalf. DIRECT lines should match a PUBLISHER entry in the network's sellers.json, RESELLER lines an INTERMEDIARY entry.
Sources: the public app-ads.txt files of tracked apps and the sellers.json of synacor.com. Something wrong? Tell us.