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Comparison · Infra & APIs

CrowdSec vs Jaeger

A side-by-side editorial comparison of CrowdSec and Jaeger — release velocity, themes, recent moves, and the top alternatives to consider.

CrowdSec vs Jaeger: at a glance

FeatureCrowdSecJaeger
SectorInfra & APIsInfra & APIs
Velocity score5.02.5
Sparks · 30d00
Top themeswaf, bot-detection, security, fingerprintingspan-search, mcp, clickhouse, elasticsearch
Last editorial update1h ago8h ago
WebsiteVisit →Visit →

What is CrowdSec?

CrowdSec's 1.8.2 candidates let operators write their own bot fingerprints.

The bot detection introduced with 1.8 is now being opened to customization. The 1.8.2 candidates add custom JavaScript fingerprinting, a cscli bot subcommand and a FlagSubmission helper, and rc2 adds a RateLimit helper for the WAF plus a cookie option for embedded contexts. Operational work runs alongside it: a cs_features metric, optional limits on concurrent decision streams and TLS certificate reloads.

Read the full CrowdSec trajectory →

What is Jaeger?

Jaeger's query service learns to search individual spans, not just whole traces.

Jaeger 2.21 and 2.22 extend the 2.x storage and query rework. ClickHouse storage moved to a stable feature gate in 2.21, and the release removed v1 HTTP endpoints the UI no longer calls. In 2.22 the query service gains FindSpans with RFC 0014 pagination, Elasticsearch span search, and structured filters promoted to beta, while native Elasticsearch trace summaries go stable.

Read the full Jaeger trajectory →

CrowdSec vs Jaeger: editorial side-by-side

C
CrowdSec
INFRA · APIS
5.0

CrowdSec's 1.8.2 candidates let operators write their own bot fingerprints.

◆ Current state

The bot detection introduced with 1.8 is now being opened to customization. The 1.8.2 candidates add custom JavaScript fingerprinting, a cscli bot subcommand and a FlagSubmission helper, and rc2 adds a RateLimit helper for the WAF plus a cookie option for embedded contexts. Operational work runs alongside it: a cs_features metric, optional limits on concurrent decision streams and TLS certificate reloads.

◆ Where it's heading

The WAF remains the center of gravity, and the direction is programmability. RateLimit, SkipProcessing and the fingerprinting hooks give rule authors primitives rather than fixed behavior. The LAPI changes point at larger deployments, where decision streaming puts load on the central API.

◆ Prediction

The final 1.8.2 is dated 26 October on GitHub, though it has not reached this feed yet. Whether fingerprint data ever joins the community blocklist remains unanswered in these notes.

J
Jaeger
INFRA · APIS
2.5

Jaeger's query service learns to search individual spans, not just whole traces.

◆ Current state

Jaeger 2.21 and 2.22 extend the 2.x storage and query rework. ClickHouse storage moved to a stable feature gate in 2.21, and the release removed v1 HTTP endpoints the UI no longer calls. In 2.22 the query service gains FindSpans with RFC 0014 pagination, Elasticsearch span search, and structured filters promoted to beta, while native Elasticsearch trace summaries go stable.

◆ Where it's heading

The earlier trace-summaries work made search cheaper; span search changes what can be asked. Pagination and structured filters give both the UI and MCP clients a way to query without pulling whole traces. MCP keeps getting practical limits and input checks, and search_traces no longer needs a service name on backends that declare support for that.

◆ Prediction

Expect span search to spread beyond Elasticsearch and memory storage, and structured filters to move from beta to stable as other gates have. Further removal of v1 surface is likely, since 2.21 already started it.

Alternatives to CrowdSec and Jaeger

Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either CrowdSec or Jaeger.

See all CrowdSec alternatives → · See all Jaeger alternatives →

Recent activity from CrowdSec and Jaeger

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 10d agoCrowdSec1.8.2 rc2 adds a WAF RateLimit helper and decision stream limits
  2. 19d agoCrowdSec1.8.2 rc1 adds custom JS fingerprinting for bot detection
  3. 26d agoJaegerSpan search and pagination reach the query service
  4. 1mo agoJaegerClickHouse goes stable; unused v1 HTTP endpoints removed
  5. 2mo agoCrowdSec1.8 rc2 tunes the bot-detection challenge, hardens acquisition
  6. 3mo agoCrowdSecCrowdSec 1.8 RC adds WAF bot detection and a Kubernetes datasource ⚡
  7. 3mo agoJaegerMCP merges into the query service; Elasticsearch 6 support removed ⚡
  8. 5mo agoJaegerLightweight trace-summaries endpoint arrives in the v3 API
  9. 5mo agoJaegerHeader forwarding to storage backends and UI base-path autodetection
  10. 6mo agoCrowdSec1.7.8 RC: OpenAPI schema validation in the WAF
  11. 7mo agoJaegerClock-skew and jitter fixes; metrics storage exposed to the UI
  12. 7mo agoCrowdSec1.7.7 RC: flexible WAF rule conditions and RE2 by default

Frequently asked questions

What is the difference between CrowdSec and Jaeger?

They serve adjacent needs but don't currently overlap on shipped themes. CrowdSec is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is CrowdSec better than Jaeger?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. CrowdSec is currently shipping more aggressively (velocity 5.0 vs 2.5), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.

What are the best alternatives to CrowdSec?

Top CrowdSec alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "CrowdSec alternatives" section above for the current picks, or visit /alternatives/crowdsec for the full list with editorial commentary on each.

What are the best alternatives to Jaeger?

Top Jaeger alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Jaeger alternatives" section above for the current picks, or visit /alternatives/jaeger for the full list with editorial commentary on each.