Glassnode adds Ink, OP Mainnet, and ZKsync Era to its latency monitoring map

Glassnode just quietly expanded the scope of one of its more niche but increasingly important tools. The blockchain analytics firm’s latency monitor now tracks transaction submission round-trip times to sequencer endpoints on three additional Ethereum Layer 2 networks: Ink, OP Mainnet, and ZKsync Era. Why sequencer latency matters more than you think Layer 2 networks like Ink, OP Mainnet, and ZKsync Era don’t work like Ethereum’s base layer. They use single sequencers to order transactions, and they lack public mempools. That means there’s no place to sit and watch pending transactions before they’re included in a block. Your transaction either gets to the sequencer fast, or it doesn’t. For high-frequency traders and market makers, this creates a co-location problem similar to what traditional finance dealt with decades ago. If you’re running a trading bot from a server in Singapore and the sequencer sits in Virginia, you’re at a structural disadvantage against someone whose infrastructure is closer to the action. Glassnode’s latency monitor addresses this by deploying global probes across platforms like Fly.io and AWS in Asia, Europe, and the Americas. These probes measure the rou...