Get Started0 Slot Transaction Landing
The only Solana infrastructure provider offering native QUIC transaction sending. Land your transactions in the same block with microsecond latency, powered by our direct TPU connections in Frankfurt.
Why AllenHark 0 Slot?
Only QUIC Provider
We are the only infrastructure provider in the market offering Solana transaction sending via QUIC protocol, making us the fastest option available.
Microsecond Latency
Direct QUIC connections to leader TPU achieve sub-millisecond transaction propagation times in Frankfurt region.
Pay Per Transaction
Cost-effective 0.001 SOL per transaction model. Only pay for what you use, no monthly minimums.
Frankfurt Region Latency Comparison
Real-world transaction propagation times from Frankfurt to Solana validators. QUIC's multiplexing and 0-RTT handshake deliver unmatched speed.
| Provider | Protocol | Avg Latency | P99 Latency | Same Block % |
|---|---|---|---|---|
| AllenHark 0 Slot | QUIC | 0.1ms | 0.2ms | 99.8% |
| Premium RPC (Co-located) | HTTPS | ~1-2 ms | ~3-5 ms | 95-97% |
| Standard RPC | HTTPS | ~5-10 ms | ~15-25 ms | 85-90% |
| Public RPC | HTTPS | ~50-100 ms | ~200-500 ms | 60-75% |
Why QUIC is Faster
QUIC eliminates TCP's 3-way handshake with 0-RTT connection establishment, prevents head-of-line blocking through independent stream multiplexing, and provides built-in congestion control optimized for blockchain workloads. This results in consistent sub-millisecond transaction propagation to the leader's TPU.
Technical Advantages
High TPS Capacity
Our infrastructure handles 50,000+ transactions per second with QUIC's efficient multiplexing, far exceeding traditional HTTPS RPC limitations.
Largest SWQoS Pool
Stake-Weighted Quality of Service ensures your transactions are prioritized through our extensive validator stake pool, maximizing inclusion rates.
Direct TPU Connection
Bypass traditional RPC overhead with direct QUIC streams to the leader's Transaction Processing Unit, eliminating intermediary hops.
Cost-Per-Transaction
Pay only 0.001 SOL per transaction. No monthly fees, no rate limits, no hidden costs. Perfect for high-frequency trading and arbitrage bots.
Frequently Asked Questions
Q: What makes AllenHark the only QUIC provider?
A: We have built custom infrastructure that directly integrates with Solana's QUIC-based TPU ingestion layer. While other providers use standard HTTPS RPC, we send transactions using the same QUIC protocol that validators use internally, eliminating protocol conversion overhead.
Q: How does 0 Slot landing work?
A: "0 Slot" means your transaction lands in the current block being produced, not the next one. Our sub-millisecond QUIC connections ensure transactions reach the leader's TPU fast enough to be included in the active slot, maximizing your execution speed for time-sensitive operations like arbitrage and sniping.
Q: What is the pricing model?
A: We charge 0.001 SOL per transaction sent through our QUIC infrastructure. This is a pure pay-per-use model with no monthly minimums, setup fees, or rate limits. You only pay for successful transaction submissions.
Q: Can I use this with my existing trading bot?
A: Yes! Our service is compatible with standard Solana transaction formats. Simply point your bot to our QUIC endpoint instead of a traditional RPC, and you'll immediately benefit from microsecond latency. Integration takes minutes, not hours.
Q: How does this relate to AllenHark Relay?
A: AllenHark Relay is our comprehensive transaction relay service that includes QUIC-based sending as its core feature. 0 Slot specifically refers to the same-block landing capability enabled by our QUIC infrastructure. Learn more about AllenHark Relay.
Frequently asked questions
What is 0-slot transaction landing?
0-slot landing means your Solana transaction is included in the exact same slot (~400ms block) as the one in which it was submitted — the fastest possible inclusion. Standard RPC providers typically land transactions 1–5 slots later, which is the difference between getting a first-block PumpFun buy and paying 20–60% more.
How does AllenHark achieve 0-slot landing?
Direct QUIC TPU submission from Frankfurt to the current Solana leader's validator, bypassing public RPC propagation and mempool. Slot-leader schedule is tracked in real time; transactions are forwarded to the correct TPU port for the active leader.
What is QUIC and why does Solana use it?
QUIC is a UDP-based transport protocol with built-in encryption, multiplexing, and congestion control — think TCP+TLS but faster and connectionless. Solana validators use QUIC for TPU (Transaction Processing Unit) ingestion because it avoids the head-of-line blocking and handshake overhead of TCP.
Do I need co-location to benefit from 0-slot?
It helps significantly. The bot or application submitting transactions should be within single-digit milliseconds of the leader. AllenHark co-location in Frankfurt places you <1ms from European validators. Running from residential internet adds 80–250ms and typically forfeits the 0-slot advantage.
How does 0-slot compare to Jito bundles?
Jito bundles guarantee atomic inclusion (all or nothing) via a block engine — they are about composition, not latency per se. 0-slot is about raw speed: landing as early as possible in the current leader's slot. Slipstream routes between both intelligently based on transaction type.
Scaling a Solana arbitrage operation on 0-slot
How a cross-DEX arbitrage team used AllenHark's 0-slot landing to capture opportunities that were previously gated by propagation latency.
Read the case studyReady for Microsecond Execution?
Join the fastest traders on Solana. Start landing transactions in the same block with QUIC-powered infrastructure.
Prefer community support? Join our Discord — optional.
Related Infrastructure
Every service below is available on every AllenHark tier — stack what your workload needs.
Sender-agnostic transaction relay across 4 protocols and 4 regions.
Staked, dedicated RPC with priority sendTransaction and IP whitelist.
Same-slot account and transaction subscriptions over dedicated gRPC.
Raw UDP shred access — sees transactions before they land in a block.
Private relay bypassing public mempools to protect strategies.
Bare-metal and VPS hosting in Frankfurt / Amsterdam / Chicago.
See full pricing on the pricing page, read the Solana gRPC guide, or compare AllenHark to Helius, QuickNode & Triton.