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Security report for backblazeb2.com

Backblaze · Technology · United States

Low risk. 1 critical or high finding in SSL/TLS.

Security score

82/100

Risk levelLow

0–100, higher is better. How it is calculated

Backblaze is a reputable cloud storage and backup service provider founded in 2007, offering cost-effective and scalable S3 compatible object storage solutions. Positioned as a competitive alternative to major cloud providers, Backblaze targets businesses and developers seeking affordable and reliable cloud storage. The company emphasizes simplicity, performance, and integration with existing workflows. Technically, the website is built on modern frameworks including Webflow CMS, uses advanced JavaScript libraries for animations and tracking, and integrates multiple marketing and analytics tools with user consent mechanisms. Security posture is strong with HTTPS enforcement, SOC 2 Type 2 certification, multi-factor authentication, and data immutability features. However, the absence of publicly available WHOIS data is noted but does not detract significantly from overall trust given the company's established market presence. Overall, the website is professional, secure, and compliant with privacy regulations, providing a trustworthy platform for cloud storage services.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 100 · Low
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

1 finding rated critical or high. Fix these first.

  1. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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Keep watching backblazeb2.com

This scan found 15 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
75
Security headers
55
Email security
85
DNS health
90
Network security
100
GDPR outside view
88
Average
82

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention backblazeb2.com, from OffSeq Breach.

Total records
569
Employees
0
Customers
569
Third parties
0
Weak passwords
10%

200 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for backblazeb2.com.

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Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Backblaze operates in the technology sector focusing on cloud storage and backup services. Its business model revolves around providing affordable, scalable cloud storage with transparent pricing and strong security features. The company serves a global audience including enterprises, SMBs, and individual users. Strategic partnerships and integration with CDN and compute providers enhance its market reach. The company maintains a consistent brand image and offers comprehensive solutions including ransomware resilience, hybrid cloud storage, and media workflow optimization. Growth indicators include a broad product portfolio and active marketing through analytics and retargeting services. The company’s ecosystem includes staging and development domains, indicating mature operational practices.

Security posture

Backblaze demonstrates a mature security posture with adherence to industry best practices such as SOC 2 Type 2 certification, multi-factor authentication, server-side encryption, and object lock for data immutability. The website enforces HTTPS and implements security headers to protect users. Use of reCAPTCHA and secure local storage via IndexedDB further enhance security. However, the lack of a publicly disclosed incident response policy or vulnerability disclosure program is a gap. No critical vulnerabilities or exposed sensitive data were detected. Privacy compliance is strong with clear cookie consent mechanisms and GDPR adherence. Overall, the security culture appears robust but could benefit from enhanced transparency in incident handling.

Recommendations

  1. Publish a dedicated incident response and vulnerability disclosure policy to improve transparency and trust.
  2. Provide a direct security contact email (e.g., security@backblaze.com) for reporting security issues.
  3. Regularly audit and update third-party scripts to mitigate potential vulnerabilities.
  4. Enhance documentation on data retention and privacy policies to align with evolving regulations.
  5. Continue investing in user education and security culture to maintain high security standards.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Backblaze
Description
Backblaze B2 provides unlimited data storage in the cloud at 1/5th the cost of Amazon S3, Microsoft Azure, and Google Cloud.
Key services
B2 Cloud Storage, Computer Backup (Business and Personal), Hybrid Cloud Storage, Ransomware Resilience & Disaster Recovery, Application & AI Storage, Media Workflow Storage
Content quality
excellent
Branding
consistent

Technology

Stack
Google Fonts, jQuery, GSAP (GreenSock Animation Platform), Google Tag Manager, Google Analytics, reCAPTCHA, IndexedDB, Clearbit scripts, Visual Website Optimizer, ZoomInfo
Frameworks
Webflow CMS
Platforms
Web (desktop and mobile)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
excellent

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Multi-factor authentication mentioned
  • Use of reCAPTCHA
  • Server-side encryption (SSE)
  • Object Lock for data immutability
  • IndexedDB usage for secure local storage

Analytics and tracking

Services
Google Analytics, Visual Website Optimizer
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Clearbit
Tracking pixels
Visual Website Optimizer, ZoomInfo
Marketing tools
Clearbit, Visual Website Optimizer
Transparency
good

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is fully accessible with rich content and professional design.
  2. Strong focus on cloud storage and backup services with clear pricing and solutions.
  3. Good use of structured data (JSON-LD) for SEO and FAQ.
  4. Multiple tracking and marketing scripts present but with consent mechanisms.
  5. No signs of phishing, malware, or suspicious content.
  6. WHOIS data missing, which is unusual but not necessarily suspicious given the company's reputation.
Technical notes

Notes

The website leverages a modern technology stack including Webflow CMS, Google Fonts, jQuery, GSAP for animations, and multiple analytics and marketing tools such as Google Analytics, Visual Website Optimizer, and Clearbit. The site is well-optimized for performance and mobile responsiveness, with good accessibility features and SEO optimization. IndexedDB is used for secure local storage, indicating advanced client-side capabilities. Hosting details are not explicitly identified but the use of CDN and external script providers suggests a distributed infrastructure. The technical implementation supports a fast, user-friendly experience with robust tracking and marketing integration while maintaining privacy compliance.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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