Overview
Findings
Actions
Details
Related
B+
88 / 100

bubble.io

Security report · Scanned February 15, 2026

Checks
8
Passed
5
Warnings
3
Critical
0
AI-Generated Summary
What this means

bubble.io scored 88/100, demonstrating a strong security posture. Minor improvements are noted below.

Positive signals: TLS Configuration, Known Breaches, DMARC / Email Security all passed.

3 action items identified, including 0 critical. The issues are configuration gaps, not architectural problems. A focused remediation effort of 2–5 days could address all findings.

How bubble.io compares

Grade distribution across 2519 companies we've scanned. bubble.io scores better than 81% of them.

81th percentile
0 Percentile rank 100
79
A+
25
A
184
A-
190
B+
73
B
351
B-
121
C+
113
C
324
C-
117
D+
93
D
236
D-
613
F
bubble.io — Grade B+ (88/100) 2519 companies scanned
Security checks

Each check inspects a different part of bubble.io's public security setup. Green means healthy, yellow needs attention, red is a problem.

DNS Configuration
Strengths: 2 nameservers configured (wanda.ns.cloudflare.com., cory.ns.cloudflare.com.); 5 MX records present; Zone transfers properly restricted. Issues: DNSSEC not configured — DNS responses can be spoofed.
Needs work
Security Headers
3/5 security headers present. Missing: X-Frame-Options, Permissions-Policy.
Needs work
Certificate Hygiene
Strengths: Certificate valid, 74 days remaining; Issued by Google Trust Services. Issues: Wildcard certificate in use — broader attack surface if compromised.
Needs work
TLS Configuration
TLSv1.3 negotiated with TLS_AES_256_GCM_SHA384 (256-bit). Strong configuration with no deprecated protocols or weak ciphers detected.
Healthy
Known Breaches
No known breaches found in public disclosure databases.
Healthy
DMARC / Email Security
Strengths: DMARC policy set to reject (strongest); SPF record present with hard-fail (-all); DKIM configured (selectors: google, s2, k1).
Healthy
HSTS Header
HSTS enabled: max-age=31536000. Missing includeSubDomains. Missing preload directive.
Healthy
CVE Exposure
Detected technologies: cloudflare, Express. (cloudflare detected but excluded from CVE matching — upstream infrastructure). No version information exposed — CVE matching not possible (this is good practice).
Healthy
Recommended actions
3 items

Steps to improve bubble.io's security grade, ranked by impact.

1
Enable DNSSEC on your domain
Impact: 1–3 Days (Depends On Registrar)
MEDIUM
Without DNSSEC, DNS responses for bubble.io can be spoofed, potentially redirecting users to malicious sites. This requires coordination with your domain registrar to publish DS records.
Compliance impact
NIST 800-53SC-20
Secure name/address resolution service
How to fix this
1
Check if your DNS provider supports DNSSEC (Cloudflare, Route53, etc.)
2
Enable DNSSEC signing in your DNS provider dashboard
3
Add the DS record to your registrar for .io TLD
4
Verify: dig +dnssec bubble.io
2
Add optional security headers (X-Frame-Options, Permissions-Policy)
Impact: < 1 Hour
LOW
bubble.io has most security headers configured. Missing: X-Frame-Options, Permissions-Policy. These are best-practice additions that reduce the attack surface for client-side vulnerabilities.
How to fix this
1
Add: X-Frame-Options: DENY (or SAMEORIGIN if you use iframes)
2
Add: Permissions-Policy: camera=(), microphone=(), geolocation=()
3
Verify with: curl -sI https://bubble.io | grep -iE 'content-security|x-frame|x-content|referrer|permissions'
3
Review certificate configuration
Impact: 1–2 Hours
LOW
Certificate issues found for bubble.io: wildcard certificate in use. Wildcard certificates have a broader blast radius if compromised. These are operational hygiene items, not immediate security risks.
How to fix this
1
Consider replacing wildcard cert with individual certs for critical subdomains
2
Consolidate certificate issuance to 1–2 trusted CAs
At a glance

Key data points from the scan.

TLS Version
TLSv1.3
TLSv1.3 negotiated with TLS_AES_256_GCM_SHA384 (256-bit). Strong configuration with no deprecated protocols or weak ciphers detected.
DMARC Policy
p=reject
Strengths: DMARC policy set to reject (strongest); SPF record present with hard-fail (-all); DKIM configured (selectors: google, s2, k1).
SPF Record
Present
v=spf1 include:servers.mcsv.net include:helpscoutemail.com include:_spf.google.com -all
Security Headers
3/5 present
Missing: X-Frame-Options, Permissions-Policy
HSTS
Enabled
HSTS enabled: max-age=31536000. Missing includeSubDomains. Missing preload directive.
SSL Certificate
Issues
Strengths: Certificate valid, 74 days remaining; Issued by Google Trust Services. Issues: Wildcard certificate in use — broader attack surface if compromised.
DNSSEC
Not enabled
Strengths: 2 nameservers configured (wanda.ns.cloudflare.com., cory.ns.cloudflare.com.); 5 MX records present; Zone transfers properly restricted. Issues: DNSSEC not configured — DNS responses can be spoofed.