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Comparison · Infra & APIs
CrowdSec vs Oh Dear
A side-by-side editorial comparison of CrowdSec and Oh Dear — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:security
CrowdSec vs Oh Dear: at a glance
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.
What is Oh Dear?
Oh Dear's weekly changelogs have carried a security section five weeks running.
Oh Dear, an uptime and site monitoring service, publishes a changelog each week. Since late September, along with features such as custom webhook headers, 30 to 90 days of status page history and AI fix prompts in Broken Links alerts, it has fixed a high-severity SSRF in uptime checks and AI page fetches, a status page CNAME takeover, a reflected XSS and a status page ID leak, restricted scoped API tokens from team-wide endpoints, and made the MCP consent screen show redirect destinations. The MCP URL now opens a landing page in a browser.
CrowdSec vs Oh Dear: editorial side-by-side
CrowdSec
5.0INFRA · APIS
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.
Oh Dear
5.0INFRA · APIS
Oh Dear's weekly changelogs have carried a security section five weeks running.
◆ Current state
Oh Dear, an uptime and site monitoring service, publishes a changelog each week. Since late September, along with features such as custom webhook headers, 30 to 90 days of status page history and AI fix prompts in Broken Links alerts, it has fixed a high-severity SSRF in uptime checks and AI page fetches, a status page CNAME takeover, a reflected XSS and a status page ID leak, restricted scoped API tokens from team-wide endpoints, and made the MCP consent screen show redirect destinations. The MCP URL now opens a landing page in a browser.
◆ Where it's heading
August's large MCP release opened the whole product to AI agents, and the autumn work is closing the gaps that kind of exposure creates: SSRF through AI page fetches, consent redirects and token scope. Several fixes credit outside reporters, which suggests responsible disclosure is active. Product work continues alongside in small, practical items for webhooks, status pages and resellers.
◆ Prediction
Expect security fixes to keep appearing in most weekly changelogs while outside reports continue. AI features are spreading into notifications, as the Broken Links fix prompts show, so more AI-written guidance inside alerts is likely.
Alternatives to CrowdSec and Oh Dear
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 Oh Dear.
TestingBot
TestingBot's autumn work is plumbing: a rebuilt tunnel and another bug-tracker link.
KubeArmor
KubeArmor ships fixes as release-candidate tags, and its feed misses the finals.
All Quiet
All Quiet moves from enterprise integrations to the on-call engineer's own day.
Robusta
Robusta's recent releases patch its runner image rather than add features.
Uptrends
Uptrends spent October on account plumbing: vault credentials, bulk edits and a free trial path.
See all CrowdSec alternatives → · See all Oh Dear alternatives →
Recent activity from CrowdSec and Oh Dear
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 2d agoOh DearWebhook custom headers, uptime header rules, reseller teams page
- 9d agoOh DearAI fix prompts in Broken Links alerts, PHP CVE warnings
- 9d agoOh DearScoped tokens locked out of team-wide endpoints
- 10d agoCrowdSec1.8.2 rc2 adds a WAF RateLimit helper and decision stream limits
- 15d agoOh DearHigh-severity SSRF fixed in uptime checks and AI fetches
- 19d agoCrowdSec1.8.2 rc1 adds custom JS fingerprinting for bot detection
- 1mo agoOh DearLonger status page history; MCP consent and CNAME fixes
- 1mo agoOh DearWebhook deep links; one slow monitor no longer stalls others
- 2mo agoCrowdSec1.8 rc2 tunes the bot-detection challenge, hardens acquisition
- 3mo agoCrowdSecCrowdSec 1.8 RC adds WAF bot detection and a Kubernetes datasource ⚡
- 6mo agoCrowdSec1.7.8 RC: OpenAPI schema validation in the WAF
- 7mo agoCrowdSec1.7.7 RC: flexible WAF rule conditions and RE2 by default
Frequently asked questions
What is the difference between CrowdSec and Oh Dear?
Both compete on the same themes — security — within Infra & APIs. CrowdSec and Oh Dear are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is CrowdSec better than Oh Dear?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. CrowdSec and Oh Dear are shipping at a similar cadence (velocity 5.0 vs 5.0, both within Sparkpulse's "active" band). 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 Oh Dear?
Top Oh Dear alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Oh Dear alternatives" section above for the current picks, or visit /alternatives/ohdear for the full list with editorial commentary on each.