Spero Therapeutics · Domain Security

Spero Therapeutics Domain Security

Domain security

Domain security posture for Spero Therapeutics, probed live across 1 host(s) and 1 registrable domain(s). 1 host(s) serve HTTPS (up to TLSv1.3); 0 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=quarantine).

CompanyLife SciencesBiopharmaceuticalClinical StageDrug DevelopmentImmunologyInfectious Disease

Transport & Host Security

sperotherapeutics.com
HTTPS: yes · TLS: TLSv1.3 · HSTS: no · cert expires: Oct 12 08:14:40 2026 GMT

Domain (DNS/Email) Security

sperotherapeutics.com
DNSSEC: no · SPF: yes · DMARC: yes (p=quarantine) · CAA: none

Source

Domain Security

spero-therapeutics-domain-security.yml Raw ↑ 
generated: '2026-07-21'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: sperotherapeutics.com
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct 12 08:14:40 2026 GMT
  hsts: false
domains:
- domain: sperotherapeutics.com
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: quarantine