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Comparison · Infra & APIs

Certbot vs Clair

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

Certbot vs Clair: at a glance

FeatureCertbotClair
SectorInfra & APIsInfra & APIs
Velocity score5.02.5
Sparks · 30d00
Top themestls, certificates, acme, renewalcontainer-security, vulnerability-scanning, sbom, red-hat
Last editorial update2d ago8h ago
WebsiteVisit →Visit →

What is Certbot?

Certbot 5.10 closes a webroot race that could change the wrong file's permissions.

Certbot 5.10.0 fixes a race in the webroot plugin: if a less privileged user could modify the webroot while Certbot ran, Certbot could change the ownership and mode of an unintended file. It also rejects ARI renewal windows whose end is not after their start. 5.9.0 in October fixed renewal hooks being told failed SANs had renewed.

Read the full Certbot trajectory →

What is Clair?

Clair 4.10 RC can read SBOMs to match Java vulnerabilities.

Clair cut its first 4.10.0 release candidate on November 13, eleven months after 4.9.0. Its Java indexers can now read CycloneDX SBOM files and treat them as the source of truth, and Red Hat's VEX data now covers Maven advisories, so Java packages in Red Hat images can be matched. It also reduces memory use when many packages share a source package.

Read the full Clair trajectory →

Certbot vs Clair: editorial side-by-side

C
Certbot
INFRA · APIS
5.0

Certbot 5.10 closes a webroot race that could change the wrong file's permissions.

◆ Current state

Certbot 5.10.0 fixes a race in the webroot plugin: if a less privileged user could modify the webroot while Certbot ran, Certbot could change the ownership and mode of an unintended file. It also rejects ARI renewal windows whose end is not after their start. 5.9.0 in October fixed renewal hooks being told failed SANs had renewed.

◆ Where it's heading

Certbot is in maintenance mode, with monthly releases focused on correctness and safety around renewals. The last feature step was IP address certificates in 5.3 and 5.4; since then the work has been consolidation and fixes.

◆ Prediction

More small releases around renewals, ARI handling and plugin safety are likely; the entries show no new feature direction.

C
Clair
INFRA · APIS
2.5

Clair 4.10 RC can read SBOMs to match Java vulnerabilities.

◆ Current state

Clair cut its first 4.10.0 release candidate on November 13, eleven months after 4.9.0. Its Java indexers can now read CycloneDX SBOM files and treat them as the source of truth, and Red Hat's VEX data now covers Maven advisories, so Java packages in Red Hat images can be matched. It also reduces memory use when many packages share a source package.

◆ Where it's heading

Since 4.8 Clair has moved from Red Hat's older OVAL data to VEX, and each release follows Red Hat's security data more closely. 4.10 adds SBOMs as an input, so Clair can match what an image's own manifest declares, not only what it finds on disk.

◆ Prediction

More 4.10 release candidates and then a final are likely; the long gap between releases suggests that could take weeks.

Alternatives to Certbot and Clair

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 Certbot or Clair.

See all Certbot alternatives → · See all Clair alternatives →

Recent activity from Certbot and Clair

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

  1. 13h agoClairClair 4.10 RC reads CycloneDX SBOMs for Java matching
  2. 3d agoCertbotCertbot 5.10.0
  3. 16d agoCertbotCertbot 5.9.0
  4. 2mo agoCertbotCertbot 5.8.0
  5. 3mo agoCertbotCertbot 5.7.0
  6. 6mo agoCertbotCertbot 5.6.0
  7. 7mo agoCertbotCertbot 5.5.0
  8. 11mo agoClairClair 4.9 moves CVSS data to NVD's 2.0 feeds
  9. 2y agoClairClair 4.8 replaces Red Hat OVAL data with VEX
  10. 2y agoClairClair 4.7.4 changes the default layer download location
  11. 2y agoClairClair 4.7.3 requires TLS 1.2 or newer
  12. 3y agoClairClair 4.7.2 drops the retired CRDA source

Frequently asked questions

What is the difference between Certbot and Clair?

They serve adjacent needs but don't currently overlap on shipped themes. Certbot 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 Certbot better than Clair?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Certbot 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 Certbot?

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

What are the best alternatives to Clair?

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