Blog post
ProbeLab's 2025 Review and 2026 Outlook
What we've achieved in 2025 and what we're targeting in 2026
Bootstrappers
Monitoring and Alerting
Status and availability of bootstrap nodes, a critical component of every network. Bootstrapper nodes help new peers discover and connect to the network.
ProbeLab's monitoring infrastructure is checking up on Ethereum bootstrapper nodes' connectivity every 5 mins, utilising all available transports (i.e., TCP, QUIC, Websocket, WebTransport).
How to read the dashboards
- Upon three failed attempts to connect to a bootstrap node with any of the transport options (i.e., if none of the attempts with any of the transports is successful), the node is considered offline and an alert is triggered.
- If a node is offline, the corresponding tile at the top section of the dashboard turns red.
- Upon each failed attempt to connect to a node with a particular transport, the disruption is indicated as a red stripe in the timeseries dashboard of the corresponding transport.
- Unless all attempts to connect to a node with any of the transports fail, the top section tile remains green.
PeerID: 73b3df542a85283fb4633bc1239077ef31326a528d9be476b961bc9dc84ba90f
EF | aws-ap-northeast-1-tokyo
UP
Probed 0 minutes ago
PeerID: f7fa00ba76b8e33caae49ba504b81a2389a963a7c990ec722c085ec663ac2492
EF | aws-ap-northeast-1-tokyo
UP
Probed 5 minutes ago
PeerID: e6e8bf5a8226432f492ae7484a2a324392dcac3b4eeaa219384708d8653ba36b
EF | aws-us-east-2-ohio
UP
Probed 0 minutes ago
PeerID: ef4cf7caa876063f4b8a8d1dad0f58fe9cd0ce945abba6b85dbf31c5fac98269
EF | aws-us-east-2-ohio
UP
Probed 0 minutes ago
PeerID: 97209eae44c2d45dce2f9d949f33105891c0694a7d1f5f1783c43adce3a3f82e
Lighthouse | linode-au-sydney
DOWN
Probed 0 minutes ago
PeerID: 9520ea195498ea74563f037cf5ea732fd446bb5952ec52e8493f38739a50953e
Lighthouse | linode-uk-london
DOWN
Probed 0 minutes ago
PeerID: 09a38529f3aff50eb482495bbe86244ef42dbd7e322a1abb4a6480ef9c0ecd54
Lighthouse | ovh-au-sydney
DOWN
Probed 0 minutes ago
PeerID: 692a99b88a589a1f1f31d295c0ad4b0b1b4aa152f3c5510f0519ac13700980d2
Lighthouse | ovh-singapore
UP
Probed 5 minutes ago
PeerID: 9e302a3e6c431235c3ecced2f8cf34468bc78d218e3e293c51e0f6127277f114
Lodestar | hostafrica-southafrica
UP
Probed 5 minutes ago
PeerID: cb94b71cf44cce82a7109d8482bba73239dbbad5aeeaa844ab2ed53b9447268b
Lodestar | kamatera-telaviv-israel
UP
Probed 0 minutes ago
PeerID: 384241dbeec49282df80af89ce0da3ddd230fea931ca0b5d1e60362785c4d090
Nimbus | 3.120.104.18
UP
Probed 0 minutes ago
PeerID: 29bfc5c65cca8641299f5c58627624d5510e33d35c4fbf16484de01544b0bf7e
Nimbus | 3.64.117.223
UP
Probed 5 minutes ago
PeerID: 33be033e4c249643e61970998edacab44a65fcd256aa5aefdff39662cfd21a49
Prylab | aws-us-east-2-ohio
UP
Probed 0 minutes ago
PeerID: 191bbf49632da5393590a33d54421e79e8e5c96ade72f0ba69e1803095de6b04
Prylab | aws-us-east-2-ohio
UP
Probed 0 minutes ago
PeerID: aa87ab6db5f5a1e3cbd9d882fc2fee0524785dc97373899ab360c9944b6866bd
Prylab | aws-us-east-2-ohio
UP
Probed 0 minutes ago
PeerID: b55cb6e27f9d714e2bcf6199ccebad6593db24d8c144ddd24f200405bf264b59
Teku | aws-ap-southeast-2-sydney
UP
Probed 0 minutes ago
PeerID: c61faf016452f8ce284e6521b13dc75895862b60eff3c8ff7248b3154e81b733
Teku | aws-us-east-2-ohio
UP
Probed 0 minutes ago
Overall Availability
Bootstrapper availability through all available transports
Bootstrappers Status Timeline (Overall)
Latest Bootstrapper Probes
The following table shows the latest probes from our infrastructure in real-time. You can refresh the table in the upper right corner of the table.
| Name | Probe Type | Result | Error | Timestamp |
|---|---|---|---|---|
Related Work
Blog posts, papers and talks by the ProbeLab team about Ethereum.
MIDDLEWARE '25
Conference Paper
Paper
PANDAS: Peer-to-peer, Adaptive Networking Allowing Data Availability Sampling within Ethereum Consensus Timebounds
Layer-2 protocols such as rollups can help address Ethereum's throughput limits. An efficient data availability layer is key for layer-2 support in Ethereum, but broadcast …
SIGMETRICS '26
Conference Paper
Paper
Multiple Sides of 36 Coins: Measuring Peer-to-Peer Infrastructure Across Cryptocurrencies
Blockchain technologies underpin an expanding ecosystem of decentralized applications, financial systems, and infrastructure. However, the fundamental networking layer that sustains these systems, the peer-to-peer (P2P) …
Blog post
Behind the Scenes of Ethereum's Pectra Upgrade: A Data-Driven Analysis
The Pectra Upgrade in Numbers from the P2P Network.
Springer Cluster Computing
Journal Article
Paper
The Impact of Connectivity and Software in Ethereum Validator Performance
Modern public blockchains like Ethereum rely on p2p networks to run distributed and censorship-resistant applications. With its wide adoption, it operates as a highly critical …
EthResearch
Technical Report
Paper
Empirical Blob Sidecar Hit Rate Based on Local EL’s Mempool
This empirical study measures blob sidecar availability in Ethereum's execution layer (EL) mempool to assess the feasibility of distributed block building for reducing validator bandwidth …