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Head-to-head

Keitaro vs PeerClick

You have narrowed it to two trackers that do a similar job in opposite ways. Keitaro is software you install on your own Linux server, on a flat licence that does not care how much traffic you push. PeerClick is a cloud account you log into, priced by events, with a Traffic Distribution AI that re-weights your traffic by the minute. Both are built for affiliates and media buyers routing paid traffic, so the choice turns less on tracking than on one question: do you want to run your own box, or an account someone else runs?

By Marcus Flynn, tracking and attribution editor. Updated 29 September 2026.

Pick Keitaro if you can run your own server and want a proven, flat-licence tracker with built-in CAPI, bot filtering and the most-praised support in the category; pick PeerClick if you would rather run nothing yourself and want a cloud tracker that re-weights your offers and landers by the minute, especially for redirect-style affiliate and iGaming traffic.

Quick answer

Keitaro is our top pick for most people. A proven self-hosted click tracker for media buyers: streams, filters, lander and offer rotation, split tests and server-to-server postbacks, on a flat EUR licence you run on your own VPS. Its edge is built-in bot filtering, headline CAPI to Meta, TikTok and Google, and the most-praised support in the category. The trade is no free trial and some ad-network wariness of its routing toolset.

  • Keitaro. Best for High-volume affiliate and media buyers who want a proven self-hosted tracker with CAPI and anti-fraud built in.
  • PeerClick. Best for Affiliate and iGaming media buyers who want automation-heavy click tracking. From $99/mo.

Side by side

Feature comparison across 2 tools
Tool Hosting Automation Anti‑fraud Pricing From
Keitaro Self‑hosted VPS Rule‑based routing Built in Flat, from €40/mo Not listed
PeerClick Cloud (SaaS) Per‑minute AI $399 tier and up Events, from $99/mo $99/mo

Keitaro: pros and cons

What works

  • The licence does not climb with your clicks. Individual plans run EUR 40 to 104 a month billed yearly, with no per-event or per-click cap, so a campaign that suddenly does volume never trips an overage fee the way a cloud tracker can.
  • You own the data. Keitaro runs on your own VPS, so your click and conversion data lives on hardware you control, with retention you set rather than a cloud plan's limits.
  • It is a deep media-buying tracker with CAPI and bot filtering built in: streams and filters on GEO, device, browser, operator and schedule, offer and lander rotation, A/B testing, server-to-server postbacks, conversion sync to Meta, TikTok and Google, and more than 35 parameters.
  • It is established and well supported. Keitaro's own site cites more than 4,000 businesses, long-term reviews describe years of continuous use, and support is the single most repeated piece of praise, at 4.5 out of 5 on Trustpilot.

What to watch

  • You run the server. The docs require a clean VPS on CentOS 9 or 10 Stream with KVM, 20 GB of SSD and 4 GB of RAM or more, and the domains, SSL, backups, updates and security are yours to keep up. That weighs most on a non-technical or low-volume buyer; a media buyer who already runs a VPS will find it a fair trade.
  • There is no free trial. You buy a licence to use it, so you cannot run a real campaign through it for free first, though a public live demo lets you click around the interface. PeerClick, by contrast, lets you start with a free trial before you pay.
  • When the server or the support chain fails, it costs money. The sharpest reviews describe 502 errors on server-to-server conversion tracking and slow resolution, usually tracing to an under-provisioned VPS rather than the tracker itself, but on a self-hosted tool part of your uptime is your own responsibility.
  • It carries reputation baggage. Security researchers have documented Keitaro's traffic-distribution system being abused in malware and cloaking campaigns, so some strict ad networks view the toolset warily. That is about criminal misuse of a general routing tool, not honest tracking, but it is a reason to keep your redirects clean and your use compliant.

PeerClick: pros and cons

What works

  • Traffic Distribution AI re-weights offers, landers and paths every minute toward your chosen metric (ROI, earnings per visit, or conversion rate). That is real automation, not another dashboard.
  • Cookieless server-to-server tracking with native CAPI to Facebook, Google Enhanced Conversions and TikTok, so attribution holds up under iOS restrictions and ad blockers.
  • Built for redirect-style affiliate and iGaming flows: incoming and outgoing postbacks, FTD and RevShare tracking, offer routing, A/B testing and 100-plus integrations.
  • Operators call the reports fast and campaign setup intuitive, and rate the tracker reliable and fairly priced for what it does.

What to watch

  • Outside proof is thin. One Trustpilot review at 3.2, no G2 footprint, and most write-ups are affiliate-network blog posts rather than candid operator threads. That is a reason to run the trial hard, not proof it is bad.
  • Support reads as a coin flip. One buyer praised a named rep as helpful and friendly; another called support terrible and said the tracker just stopped working. There is no consistent middle to plan around.
  • Billing is strict. No refunds, a card required to access the panel, and cancellation is a request a technician processes within three business days, not a button you press.
  • The anti-fraud kit is gated to the $399 Advanced plan and above. The $199 most-popular tier does not include it, and events over the plan cap bill as per-1,000 overage on top.

The real differences

What each one actually is

Keitaro and PeerClick are the same species of tool with opposite delivery. Both are performance-marketing trackers built for affiliates and media buyers routing paid traffic. Both sit in the click path, tie every visit and conversion back to the offer, lander and source that produced it, rotate offers and landers, and read conversions back through server-to-server postbacks. Where they split is the first decision you make, before any feature: one is software you install and run yourself, the other is an account someone else runs for you.

Keitaro is self-hosted. Made by Apliteni, it installs on your own Linux server, routes your ad clicks through it, and gives a media buyer the daily toolkit on your own box: streams and filters on GEO, device, browser, operator and schedule, offer and lander rotation, A/B testing, more than 35 parameters, and conversion sync back to Meta, TikTok and Google. Its own site cites more than 4,000 businesses, and it is one of the longest-standing trackers in affiliate marketing. Read the full Keitaro review for the detail.

PeerClick is cloud. You log in, connect your sources, and the tracking runs on PeerClick's servers with nothing for you to host. It is aimed squarely at redirect-style affiliate and iGaming traffic: incoming and outgoing postbacks, first-time-deposit and RevShare tracking, and offer routing are first-class. Its headline edge is automation, a Traffic Distribution AI that shifts traffic weight toward your best offers, landers and paths every minute. The PeerClick review covers the plans and the caveats.

Cloud versus your own server

This is the fork that decides most of the comparison. Keitaro's own docs require a clean VPS on CentOS 9 or 10 Stream with KVM, 20 GB of SSD and 4 GB of RAM or more, scaling up as your clicks climb. The install is a single script and support helps, but from there the domains, SSL, backups, updates, security and uptime are yours. That is real work, and it is the price of owning your data outright: your click and conversion records live on hardware you control, with retention you set rather than a cloud plan's limits.

PeerClick removes all of that. There is no server to patch, no box to keep up at 3am, and no infrastructure skill required. In exchange your data lives on PeerClick's platform and you trust the vendor to keep the tracker fast and online. For a lot of buyers that trade is the whole decision. If running a server sounds like someone else's job, PeerClick is built for you. If you would rather own the box and the data, Keitaro is. It is the same split we drew in Binom vs PeerClick, a cloud service against self-hosted software.

Flat licence versus event pricing

The hosting model drives the cost model. Keitaro charges one flat licence that does not climb with clicks. Individual plans are billed yearly at EUR 40 (Starter), EUR 72 (Advanced) and EUR 104 (Expert) a month, with Team and Enterprise higher, and no per-event or per-click cap. A campaign that suddenly does volume never trips an overage fee. On top of the licence you carry the server.

PeerClick is event-priced and self-serve. Every visit, click and conversion counts as an event, and you pay by the tier your volume lands in, starting at $99 a month and climbing to $849 before Enterprise. Go over your cap and the overage bills per thousand events on top. So PeerClick is simpler to start and needs no server, and Keitaro's flat line is the one that stops the bill climbing once you push serious volume.

The two models cross at volume. Below meaningful click counts, PeerClick's entry plan involves no server and no infrastructure skill. Once your monthly events are high enough that per-event pricing stings, and you can run a box or rent the skills to, Keitaro's flat licence is the cheaper of the two. One caveat on the currency: Keitaro prices in euros and PeerClick in dollars, so convert before you compare the two entry numbers.

Both feed conversions back, so that is not the tiebreaker

On some tracker comparisons, server-side CAPI is the deciding feature. Here it is not, because both do it. Keitaro syncs conversions back to Meta, TikTok and Google, and PeerClick fires native CAPI to Facebook, Google Enhanced Conversions and TikTok. Both close the loop under iOS restrictions and ad blockers, so a buyer who lives on paid social is covered either way. The difference is what surrounds it: Keitaro bundles bot filtering into the tracker, while PeerClick gates its anti-fraud kit to the $399 Advanced plan and above, so the $199 tier most buyers land on does not include it.

Automation is where they genuinely diverge. PeerClick's Traffic Distribution AI re-weights offers, landers and paths every minute toward whatever metric you pick, ROI, earnings per visit or conversion rate. When you are testing dozens of offer-and-lander combinations at once, that hands-off optimization is real time saved. Keitaro automates through routing rules, rotations and weights you configure, which keeps your hand on the wheel but does not decide where the next click goes on its own. If you want the tracker to run the optimization while you sleep, that is PeerClick's pitch, and Keitaro does not match it.

Who each one is for

Pick Keitaro if you push high click volume, you are comfortable running a server or paying someone to, and you want a proven, flat-licence tracker with built-in CAPI and fraud filtering. It is established, and the support is the single most repeated piece of praise in its reviews, at 4.5 out of 5 on Trustpilot. Its weak spots are honest: there is no free trial, only a public live demo, so you cannot run real traffic through it before you pay; and its traffic-distribution toolset has been abused in cloaking campaigns, so some strict ad networks view it warily, which is a reason to keep your redirects clean. If you are weighing the wider field, see Keitaro alternatives.

Pick PeerClick if you would rather run nothing yourself, your traffic is redirect-style affiliate or iGaming where first-time deposits and RevShare are how you get paid, and you specifically want a tracker that automates the optimization by the minute. Weigh the caveats first: outside proof is thin, one Trustpilot review at 3.2 and no G2 footprint; support reads as a coin flip; and billing is strict, with no refunds and a card required to access the panel. None of that makes PeerClick bad. It means you carry more of the risk yourself, so run the free trial hard on your own data before you commit. If it is close, the best ad tracking and attribution software roundup ranks the wider field.

One caveat applies to both. Neither tool fixes a weak offer, a broken pixel setup or a low conversion rate. They make the numbers clearer. They do not make the funnel better.

What each one costs

Keitaro publishes a flat licence that does not climb with clicks, billed yearly and priced in euros. Individual plans are EUR 40 a month (Starter, one user, one domain), EUR 72 (Advanced, 100 domains) and EUR 104 (Expert, up to five users, 500 domains), with Team and Enterprise editions higher and discounts of 10% for six months up front or 20% for twelve. There is no free trial, only a public live demo, and the Linux VPS you host it on is a separate ongoing cost on top of the licence.

PeerClick is self-serve and priced on events, where every visit, click and conversion counts as one. Starter is $99 a month for one million events with basic automation and no API. Basic+ at $199 is the plan the vendor pushes as most popular, adding the AI traffic distribution and API access, though not the anti-fraud kit. That arrives on Advanced at $399, and Exclusive at $849 adds thirty million events and VIP servers. Enterprise is quoted and is the only tier with on-premise deployment. Events over your cap bill per thousand, annual billing takes 20% off, there are no refunds, and the free trial starts with 10,000 tracked events.

So PeerClick is the simpler entry with no server to run, and Keitaro is the flat line that wins once volume climbs, provided you can run the box. Price the full stack you would actually run, not the sticker floor, and read PeerClick's cancellation terms before you attach a card.

Prices read from each vendor's own pricing page, current as of 28 September 2026.

Our pick

Keitaro

A proven self-hosted click tracker for media buyers: streams, filters, lander and offer rotation, split tests and server-to-server postbacks, on a flat EUR licence you run on your own VPS. Its edge is built-in bot filtering, headline CAPI to Meta, TikTok and Google, and the most-praised support in the category. The trade is no free trial and some ad-network wariness of its routing toolset.

Frequently asked questions

Keitaro or PeerClick: which should I pick?
Pick Keitaro if you can run your own server and want a proven, flat-licence tracker with built-in CAPI, bot filtering and the most-praised support in the category. Pick PeerClick if you would rather run nothing yourself and want a cloud tracker that re-weights your offers and landers by the minute, especially for redirect-style affiliate and iGaming traffic. They do the same core job, so the decision is hosting model, cost at your volume, and how much outside proof you need behind the tool.
Do I need to run a server for either one?
For Keitaro, yes. It is self-hosted, and its own docs require a clean VPS on CentOS 9 or 10 Stream with KVM, 20 GB of SSD and 4 GB of RAM or more, plus tracking domains, SSL, backups and uptime that are yours to manage. PeerClick is cloud and fully managed, so there is no server on your side. That one difference rules one of them out for a lot of buyers before any feature comes up.
Is Keitaro or PeerClick cheaper?
It depends on your volume, and the two prices are in different currencies. Keitaro is a flat licence from EUR 40 a month billed yearly that ignores click volume, plus the cost of the VPS you run it on. PeerClick is event-priced from $99 a month, so the bill grows with clicks and conversions and can jump tiers, with overage billed per thousand events. Below meaningful volume PeerClick is simpler and needs no server; at high volume Keitaro's flat licence wins, if you can run the infrastructure.
Which one is better for iGaming and affiliate offers?
Both handle affiliate offers well. PeerClick is the more specialised fit for iGaming: incoming and outgoing postbacks, first-time-deposit and RevShare tracking, and offer routing are first-class, and its Traffic Distribution AI automates the optimization redirect buyers spend hours on by hand. Keitaro is built for high-volume affiliate and media buying with deep routing, filtering and rotation, and its flat licence is what pays off once your click counts are large.
Do both send conversions back to Meta and Google?
Yes. Keitaro syncs conversions back to Meta, TikTok and Google, and PeerClick fires native CAPI to Facebook, Google Enhanced Conversions and TikTok. Both close the loop under iOS restrictions and ad blockers, so server-side conversion tracking is not the tiebreaker between them. Where they differ is fraud filtering: Keitaro bundles bot filtering into the tracker, while PeerClick gates its anti-fraud kit to the $399 Advanced plan and above.

Sources

Other sources

6 discussions and reviews read for this page. Quotes are excerpts; open a link to read the original in context.

  1. [keitaro-home] Keitaro - Your Ad Performance Tracker Blog,
  2. [keitaro-selfhost] Keitaro - Your Ad Performance Tracker Blog,
  3. [pc-what] PeerClick official site Blog,
  4. [pc-fast] PeerClick ratings - affLIFT Blog,
  5. [pc-support] PeerClick ratings - affLIFT Blog,
  6. [pc-hard] PeerClick reviews - Trustpilot Trustpilot,

How we compared these

We do not run paid campaigns through either tool. We read each vendor's own documentation and pricing, verify every number against the source, and weigh the long-term reports of operators who run them at real spend. The full rubric is on the methodology page.