by Interstitial ads have become one of the most reliable revenue streams for publishers, and honestly, they’re one of the few formats that still delivers solid CPMs in 2026. But here’s the thing – not all interstitial networks are created equal, and picking the wrong one can tank your user experience without even improving your earnings. I’ve been testing and reviewing these networks for years now, and the landscape has shifted pretty dramatically since 2024.
The shift toward better targeting, stricter quality controls, and actual AI-driven optimization means publishers who aren’t picky about which networks they work with are leaving money on the table. Some networks are genuinely crushing it right now, while others are just limping along with legacy products nobody wants to buy.
In this post, I’m going to walk you through the 10 interstitial networks that actually matter in 2026, show you what real CPMs look like (not the inflated numbers they put on their sales pages), and give you the honest truth about where each one works best and where it falls apart.
Quick Comparison Table
| Network | Best For | Min Payout | Rough CPM Range | My Rating |
|---|---|---|---|---|
| Google AdSense (Interstitials) | Newish publishers, safety-first approach | $100 | $2–$8 | 7.5/10 |
| Mediavine | Established sites with 25k+ monthly sessions | $25k+ traffic requirement | $12–$25 | 8.5/10 |
| AdThrive | Premium publishers, high-quality niches | 100k+ monthly pageviews | $15–$28 | 8/10 |
| Index Exchange | Programmatic buyers, tech-forward sites | Varies (usually 10k+ sessions) | $4–$16 | 7.5/10 |
| Bidvertiser | Niche sites, mid-tier publishers | $10 | $3–$12 | 6.5/10 |
| Propeller Ads | Traffic arbitrage, aggressive monetization | $5 | $2–$10 | 6/10 |
| Sovrn | Mid-sized publishers, diversification | $50k+ annually | $5–$14 | 7/10 |
| Pubmatic | Direct demand, premium inventory | Invite-only | $8–$22 | 8/10 |
| Undertone | Brand-safe, viewable ads only | Invite-only | $10–$24 | 8/10 |
| OpenX | Established publishers, global reach | Invite-only | $6–$18 | 7.5/10 |
1. Google AdSense (Interstitials)
Google AdSense is still the most accessible entry point into interstitial advertising, and if you’re just starting out with monetization, it’s worth a look. What Google offers here is straightforward: contextual interstitial ads that appear between page views, with their full suite of targeting and optimization running in the background. The upside is massive – Google has the deepest pockets of advertisers and the most sophisticated matching algorithm, so theoretically, you should get relevant ads to your audience.
Here’s what actually works: if you have a site in a mainstream niche (tech, lifestyle, health, finance) with decent traffic volume, AdSense interstitials perform pretty decently. You’re looking at CPMs ranging from $2 to $8 for Tier 1 traffic (US, UK, Canada, Australia), and honestly, that’s respectable for someone just starting out. For Tier 3 traffic (developing nations), you’re more in the $0.50–$2 range.
The real pros: Google has brand safety locked down, the compliance burden is minimal, and they don’t care about your traffic size as much as other premium networks. The payout threshold is only $100, which is genuinely helpful. You also get decent reporting tools, and integration is trivial since most publishers already use AdSense for display ads.
Now the cons – and they’re significant. CPMs are nowhere near what you’d get with a proper managed network. Google takes a larger cut than most alternatives (they typically keep around 32% of the CPM before it hits your account). The ads themselves aren’t always relevant, and you don’t have much control over frequency or user experience. If you’re serious about making real money with interstitials, AdSense is your warm-up exercise, not your main event.
Skip it if: You’re running a niche site with premium traffic already and are serious about revenue – you’ll make 2–3x more with Mediavine or AdThrive.
2. Mediavine
Mediavine has been my go-to recommendation for publishers that qualify, and in 2026 they’re still crushing it. Here’s the honest assessment: Mediavine is a managed ad network that sells premium direct deals and programmatic inventory on behalf of their publishers. For interstitials specifically, they’ve built a solid product that balances user experience with revenue really well.
Their interstitial placement is smart – it appears between navigation events, not on every single pageview, so your bounce rate doesn’t tank. With Tier 1 traffic (US-heavy), you’re realistically looking at CPMs between $12–$25 depending on your vertical and traffic quality. For Tier 3 traffic, expect $3–$8.
What makes Mediavine actually good: they have a team of people optimizing placements on your behalf. They’re not just dumping an ad tag on your site and hoping for the best. They look at your traffic patterns, adjust frequency capping, and actively sell direct deals to premium advertisers. Your account manager is accessible, and they actually give a damn about your user experience because it affects their own bottom line. The reporting is granular, and they pay net-30, which is standard but reliable.
The big catch – they require 25,000 monthly sessions minimum, and honestly, they’re fairly selective about who they take on. If your niche is something they don’t understand or trust (certain gambling niches, finance products they deem risky), they’ll pass. The revenue split isn’t published, but industry estimates put them at taking around 25–30% of your CPM, which is reasonable for the work they do. They also have minimum earning requirements and will cut you if you’re not hitting certain thresholds, so don’t apply if you’re not serious.
Skip it if: You’re below 25k monthly sessions or in a niche they’ve flagged as risky (certain health claims, for instance).
3. AdThrive
AdThrive is Mediavine’s main competitor in the premium managed space, and they’re aggressively going after higher-quality publishers. They have a slightly different philosophy – they’re more selective about traffic sources and put a lot of emphasis on “clean” traffic without bots or suspicious patterns. If you’ve got a real audience, AdThrive rewards you for it.
The numbers: with Tier 1 traffic, you’re looking at $15–$28 CPMs with interstitials. That’s genuinely higher than Mediavine on average, which surprised me when I dug into the data. For Tier 3 traffic, you’re at $4–$10. The difference is that AdThrive seems to attract bigger-name brands who pay more because they trust the traffic quality.
The honest truth: AdThrive requires 100k+ monthly pageviews, which is a significant barrier. But if you hit it, the upside is real. They’ve built a team that includes actual ad strategists who understand your niche. Their approval process is intense – they’ll ask about your traffic sources, your audience demographics, your content strategy – but once you’re in, you get treated like you matter. Payment is net-30, reporting is solid, and they have a Slack community where publishers actually share insights.
The downside: their minimum threshold is genuinely high, and they’re more likely to reject you if they have questions about traffic quality. Their terms can be strict, and if you don’t hit certain earning minimums, they reserve the right to cut you. Also, their interstitial placement is slightly more conservative than Mediavine’s, which means slightly lower frequency and potentially lower overall earnings in some cases.
Skip it if: You’re below 100k monthly pageviews or have any traffic quality concerns.
4. Index Exchange
Index Exchange is a programmatic ad exchange that’s been around since 2012 and actually knows what they’re doing with header bidding and real-time auctions. For publishers looking to get into programmatic interstitials without the managed network overhead, this is solid.
How it works: you integrate their wrapper into your site, and they run real-time auctions with their network of programmatic buyers. The appeal is that you’re getting competitive bids from multiple buyers simultaneously, which theoretically drives prices up. On Tier 1 traffic, you’re seeing CPMs around $4–$16. On Tier 3, it’s $1–$6.
The real advantages: you own the relationship with your users, so there’s no middleman taking a massive cut. Index Exchange’s take is transparent – usually around 15–20% – which is lower than managed networks. You get access to their yield optimization tools, which are actually pretty good. The reporting dashboard is detailed, and you can see exactly what’s happening with your inventory. They also play nicely with Google AdSense and other networks, so you can run them in parallel without conflicts.
The honest drawbacks: you need some technical sophistication to set up and optimize. It’s not plug-and-play like AdSense. CPMs are volatile because you’re in auctions, so one month might be $10 and the next might be $6. You need consistent traffic to make this worthwhile – they want 10k+ monthly sessions minimum, ideally more. Also, not all buyers care about interstitials equally, so the auction depth varies by format and geography.
Skip it if: You’re not comfortable with programmatic concepts or lack technical resources to optimize.
5. Bidvertiser
Bidvertiser is the scrappy mid-tier network that punches above its weight. I think of them as the bootstrapper’s choice – low barrier to entry, reasonable CPMs, and genuinely decent customer service for publishers who aren’t household names.
The specifics: minimum $10 payout (so you can start earning from day one), and CPMs range from $3–$12 for Tier 1 traffic, $1–$4 for Tier 3. They’ve built a network of direct advertisers and programmatic buyers, and their algorithm does a decent job matching ads to content.
What’s genuinely good: no minimum traffic requirement. They’ll accept sites with a few thousand monthly sessions. They have multiple payment options (PayPal, bank transfer, checks), they pay on net-15, and the dashboard is intuitive. Their customer support is actually responsive – I’ve tested this personally and gotten replies within 24 hours. They also allow you to run interstitials at your own frequency (within reason), so if you want more aggressive monetization, you can push it.
The real limitation: CPMs are lower than managed networks, and the advertisers aren’t always premium. You’re more likely to see ads for affiliate products, web hosting, and other semi-sketchy verticals. The traffic quality requirements are loose, which means more bot traffic can sneak through, and you need to monitor for fraud yourself. Also, their optimization tools aren’t as sophisticated as Index Exchange or the managed networks, so you’re relying more on default settings.
Skip it if: You have premium traffic and are willing to jump through hoops – you’ll make significantly more with Mediavine or AdThrive.
6. Propeller Ads
Propeller Ads is the network for publishers who want aggressive monetization and don’t mind pushing user experience limits. They’re unapologetically focused on CPMs over everything else, and if you’re running traffic arbitrage or have a disposable audience, they can be genuinely profitable.
Real talk: CPMs range from $2–$10 for Tier 1, $0.50–$3 for Tier 3. They accept virtually any traffic, have no minimums, and pay out on net-30. What they offer is flexibility – you can set interstitial frequency aggressively, test placement variations, and they give you access to a programmatic platform where you can see exactly what’s being monetized.
The upside: if you’re willing to accept lower CPMs in exchange for easy setup and no traffic requirements, this works. They have decent advertiser variety, and their push notification product actually works well if you want to diversify. They’re transparent about how much they’re taking (usually around 30–35%).
The major downside: CPMs are objectively lower than competitors. User experience gets hammered if you’re not careful – interstitials fire frequently, and you’ll see bounce rate increases. They don’t have brand-name advertisers like Google or Mediavine do, so ads are lower quality. Also, they’ve had reputation issues with aggressive ad formats, and some ad blockers specifically target them. If you’re using Propeller Ads, you’re signaling to your users that monetization comes before experience, and they’ll notice.
Skip it if: You care about brand reputation or have a premium audience that will bounce immediately.
7. Sovrn
Sovrn (formerly Conversant) is a mid-market network that I think is underrated. They’re a full-service ad platform with direct sales, programmatic, and native options, and they’ve quietly built some solid tools for publishers.
What they deliver: CPMs range from $5–$14 for Tier 1, $2–$6 for Tier 3. They require $50k+ in annual earnings (so around 10k+ monthly sessions minimum), and they take a competitive cut (around 20–25%). They have a real account management team, decent reporting, and they pay net-30.
The genuine appeal: Sovrn is good for diversification. If you’re already with Mediavine or Google AdSense, Sovrn won’t conflict, and you can run them in parallel to increase your interstitial fill rate. They’ve invested in AI-driven optimization, so ads get smarter over time. They also have a strong direct sales team, so if you have premium traffic, they can actually sell directly to brands, which drives CPMs up.
The honest limitation: they’re not as polished as Mediavine or AdThrive. Account management can feel hands-off, and you need to do more of the optimization work yourself. CPMs aren’t as high as managed networks, but they’re not as low as Propeller Ads either – they’re the middle ground. They’re also less selective about traffic quality than some competitors, which means lower CPMs as a result.
Skip it if: You’re already getting solid CPMs from a managed network – this works best as a secondary network, not your primary.
8. Pubmatic
Pubmatic is an enterprise-level SSP (supply-side platform) that’s been in the game since 2006. If you’re a serious publisher with consistent traffic and some technical chops, Pubmatic can deliver impressive CPMs because they control direct relationships with demand partners.
The numbers: Tier 1 CPMs range from $8–$22, Tier 3 from $2–$8. They’re invite-only, which means you need to prove your traffic quality, but once you’re in, you get access to their proprietary demand pool. They take around 15% on average, which is competitive for the value they provide.
What makes Pubmatic actually useful: they have an open marketplace where hundreds of advertisers and networks bid on your inventory in real-time. They’ve invested heavily in header bidding optimization, so your auctions are genuinely competitive. The reporting tools are sophisticated, and you can dig into buyer behavior to understand what’s working. They also have vertical-specific optimization – if you’re a tech site, they know the tech advertisers and can optimize for them specifically.
The downsides: getting approved requires proof of real traffic and some sophistication on your end. You need to integrate header bidding properly, which means working with a developer or learning the technical side yourself. CPMs are variable because auctions fluctuate. They’re also better suited for larger publishers – if you’re below 50k monthly sessions, they might not be interested.
Skip it if: You lack technical resources or are below 50k monthly sessions.
9. Undertone
Undertone is a premium ad platform focused on brand-safe, viewable inventory. They’ve built a reputation for only working with premium publishers, and they have strict requirements, but the CPMs reflect that quality bar.
The reality: Tier 1 CPMs range from $10–$24, Tier 3 from $3–$10. They’re invite-only, and approval requires demonstrated traffic quality and content quality. They take around 25–30% but deliver premium demand that justifies it.
The appeal: Undertone doesn’t mess around with bot traffic or low-quality inventory. If you get approved, you’re in a pool with other premium publishers, and advertisers pay accordingly. Their interstitials are formatted beautifully and load smoothly – they optimize for actual user experience within the constraints of interstitial advertising. You also get dedicated support and reporting that’s actually useful for optimization.
The limitation: approval is selective and can take weeks. They’re picky about content quality, traffic sources, and your overall brand. If they have any doubts about your legitimacy, you won’t get in. CPMs are high, but that’s because they’re not for everyone – if your traffic doesn’t meet their standards, you won’t even get the chance to earn those CPMs.
Skip it if: You’re not willing to go through a rigorous approval process or have any traffic quality concerns.
10. OpenX
OpenX is another established SSP that’s been around forever and has evolved into a solid general-purpose ad platform. They’re more accessible than Pubmatic in some ways, but still high-quality.
The numbers: Tier 1 CPMs from $6–$18, Tier 3 from $2–$7. They take around 15–20%, and they’re invite-only. They have strong international demand, which helps if you have global traffic.
What works: OpenX has a good balance between accessibility and premium demand. They’re easier to get approved for than Undertone or some of the invite-only networks, but the demand quality is still solid. They have good reporting tools, they pay reliably on net-30, and they support multiple ad formats well. If you’re a mid-to-large publisher outside the US, they’re particularly valuable because they have strong demand in European, Asian, and other international markets.
The downside: they’re a bit of a generalist, which means they don’t specialize as deeply in any vertical. Integration can be technical, and like other SSPs, CPMs are auction-dependent and variable. They’re also better suited for publishers with 30k+ monthly sessions – below that, fill rates can be inconsistent.
Skip it if: You need guaranteed support and optimization – you’ll do better with a managed network.
How to Actually Pick the Right Network for Your Situation
Okay, so you’ve got 10 options. How do you actually choose? Here’s my decision framework that I recommend to everyone:
Step 1: Check Your Traffic Volume and Quality
First, be honest about your monthly sessions and geographic breakdown. Pull your Google Analytics and see what percentage of your traffic is Tier 1 (US, UK, CA, AU), Tier 2 (EU, Japan, developed Asia), and Tier 3 (everything else). This determines your ceiling for CPMs immediately.
If you’re under 25k monthly sessions, forget about Mediavine and AdThrive – they won’t take you, and even if they did, managed networks aren’t optimized for smaller publishers. You’re looking at Google AdSense, Bidvertiser, or Propeller Ads.
If you’re 25k-100k sessions, you can qualify for Mediavine, and you should probably try. If you’re over 100k sessions, AdThrive becomes viable too, and you should compare their offers.
Step 2: Assess Your Technical Sophistication
Be real about your comfort level with technical setup. If you’re a non-technical founder, managed networks (Mediavine, AdThrive) are better because they handle everything. If you have a developer or you’re comfortable with code, SSPs like Pubmatic and OpenX might deliver higher CPMs because you can optimize actively.
Step 3: Evaluate Your Traffic Quality
This is critical and often overlooked. Do you have real users or are you buying traffic? Are your sessions natural organic traffic or direct traffic from loyal users? Premium networks (Undertone, AdThrive) can tell the difference, and they only want the former.
If your traffic is a mix of organic and paid, that’s fine for Mediavine. If it’s mostly organic, you can hit Undertone or premium SSPs. If it’s heavily paid traffic or arbitrage, stick with Propeller Ads or Bidvertiser.
Step 4: Understand Your Vertical
Some niches are more profitable than others. Finance, tech, healthcare (legitimate stuff), and business content command higher CPMs. Lifestyle, entertainment, and general content are lower. Certain verticals (crypto, dating, certain health claims) are blacklisted by premium networks.
If you’re in a premium vertical with Tier 1 traffic, go for the managed networks. If you’re in a lower-CPM vertical, you need volume or alternative revenue streams.
Step 5: Make Your Actual Decision
Here’s my flowchart:
Traffic under 25k sessions: Start with Google AdSense (it’s free and safe), test Bidvertiser as a second network, consider Propeller Ads if you want to push monetization harder.
Traffic 25k-100k sessions, Tier 1-dominant, clean organic traffic: Apply to Mediavine. While you wait, integrate Index Exchange as a secondary network. If you get rejected by Mediavine, pivot to Bidvertiser or Sovrn as your primary.
Traffic 100k+ sessions, Tier 1-dominant, premium vertical: Apply to both AdThrive and Mediavine. Whoever accepts you first, go with them. Integrate Pubmatic or OpenX as a secondary network. Consider Undertone if they’ll have you.
Traffic over 50k, Tier 1-dominant, enterprise-level: Negotiate directly with SSPs like Pubmatic and OpenX. You might also be able to set up direct advertiser relationships through platforms like Mediavine’s or AdThrive’s direct sales teams.
Step 6: Don’t Put All Eggs in One Basket
This is genuinely important. Your interstitial inventory can be filled by multiple networks simultaneously without conflicts. Google AdSense plays nicely with everyone. Index Exchange, Pubmatic, and OpenX can all run in parallel. Mediavine and AdThrive typically ask for exclusivity, but Sovrn and others can run as secondary networks.
My recommendation: pick one primary network based on the above framework, then add a secondary network that fills inventory your primary network doesn’t. If Mediavine fills 80% of your impressions, set up Sovrn to fill the remaining 20%, and you’ll increase total revenue by 15–25%.
5 Common Questions About Interstitial Networks
Q1: Do interstitials actually hurt my bounce rate?
Yes, they do, but the amount depends on implementation. Managed networks like Mediavine and AdThrive place them smartly (after user engagement, between pages), so bounce rate increases are minimal – usually 2–5%. Aggressive networks like Propeller Ads can increase bounce rates by 15–30% if you’re not careful. The key is frequency capping: one interstitial per session maximum, and only after users have engaged (scrolled, clicked, spent time on page). If you’re seeing huge bounce increases, you’re showing too many too often.
Q2: Which network pays the fastest?
Most reputable networks pay net-30 (30 days after month-end). Bidvertiser pays net-15, which is faster. Google AdSense is net-30-ish but sometimes faster. If you need cash immediately, Bidvertiser is fastest, but the CPMs are lower. This is a tradeoff, not a free win.
Q3: Can I run multiple interstitial networks on the same site?
Technically yes, but you shouldn’t run more than two. Each one fires on certain events, and if you stack too many, users experience multiple interstitials in a session, bounce rate explodes, and CPMs actually go down because buyers see poor engagement metrics. The right approach is primary + one secondary, or use header bidding (Pubmatic, Index Exchange, OpenX) where one auction serves the impression, so there’s no duplication.
Q4: How much can I actually make from interstitials?
Real numbers: if you have 100k monthly sessions with 70% Tier 1 traffic and a managed network with $15 average CPM, you’re looking at roughly $10,500/month before taxes. Most sites get 0.8–1.2 impressions per session for interstitials (not everyone sees them, some are blocked), so 100k sessions × 1 interstitial per session × $15 CPM = $1,500. Then layer in that Tier 1 is only 70% of traffic, so $1,500 × 0.7 = $1,050/month. With proper optimization and diversification across networks, you might get to $1,500/month from that same traffic. Rough mental math: 100k sessions at decent Tier 1 concentration = $1k–$2k/month from interstitials alone. Factor in 2–3x variation based on vertical.
Q5: Should I use interstitials if I’m also using display ads?
Yes, absolutely. They fill different inventory pools and don’t cannibalize each other. A user might see two display ads and one interstitial in a session, and you get paid for all three. The key is not overwhelming users – you want a balanced ad load. Recommend: 2–3 display ad placements + 1 interstitial per session maximum. If you go beyond that, ads become the primary experience instead of content, and users leave.
My Overall Recommendation
Here’s what I genuinely recommend based on everything I’ve tested and seen work in 2026:
For most publishers, your best bet is Mediavine if you qualify. It’s the sweet spot between revenue optimization, user experience, and actual support. If you’re below their threshold, start with Google AdSense (it’s reliable and free to test) and layer in Bidvertiser as a secondary network to increase fill rate. As you grow, transition to Mediavine.
If you’re over 100k sessions and willing to go through a more selective approval process, AdThrive will likely earn you 15–30% more than Mediavine, but the approval is stricter and the relationship more formal.
If you’re technically sophisticated and have 50k+ sessions, set up Pubmatic as a primary network (higher CPMs, more work on your end) and Mediavine as secondary (fills gaps, handles optimization for you).
Avoid Propeller Ads unless you’re specifically running traffic arbitrage and treating your audience as expendable. The CPMs are lower and user experience damage is higher than alternatives.
The interstitial space in 2026 is healthier than it’s been in years because the industry finally cracked down on fraud and built real buyer demand for quality inventory. The networks that survived are the ones that actually care about both advertiser quality and publisher experience. Pick one based on your traffic volume and quality, implement properly, and you’ll be pleasantly surprised by the revenue.
