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Security report for sendlane.com

Sendlane · Technology · N/a

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

74/100

Risk levelMedium

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

Sendlane is a technology company specializing in unified marketing automation solutions for eCommerce merchants. Their platform integrates email marketing, SMS marketing, customer reviews, and forms into a single system designed to optimize sales and customer engagement. The company positions itself as merchant-focused, offering deep data integrations and multi-channel automation to streamline marketing efforts. The website is professionally designed, mobile-optimized, and rich in content, targeting eCommerce businesses seeking efficient marketing tools. Technically, the website leverages modern web technologies including Webflow CMS, HubSpot analytics and marketing tools, Google Tag Manager, and various JavaScript libraries for enhanced user experience and tracking. The site is hosted on a reliable CDN with HTTPS enforced and appropriate security headers, indicating a mature digital infrastructure. Performance and SEO optimizations are well implemented, contributing to a fast and accessible user experience. From a security perspective, the site demonstrates good practices such as HTTPS, security headers, and secure form handling via HubSpot. However, it lacks publicly available dedicated security policies, incident response contacts, and vulnerability disclosure mechanisms, which are important for transparency and trust. The WHOIS data for the domain is missing, which raises concerns about domain registration transparency and reduces trustworthiness from a domain ownership perspective. Overall, Sendlane presents a low-risk profile with a strong business and technical foundation but would benefit from improved domain registration transparency and enhanced security policy disclosures to further strengthen trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
73/ 100 · Medium
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

4 findings rated critical or high. Fix these first.

  1. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  3. 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 Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1
    • High

      SSL Certificate Expires Soon

      SSL certificate expires in 27 days

      What to do: Renew SSL certificate before expiration

      • NIS2 21(2)(h)
      • IR 2024/2690 9.2(c): Implementing Regulation (EU) 2024/2690, Annex point 9.2(c): Cryptography
      • NIST SC-17: NIST SP 800-53 Rev. 5 SC-17: Public Key Infrastructure Certificates

Need hands-on remediation? Email guard@offseq.com

Keep watching sendlane.com

This scan found 20 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.

Daily monitoring

Recommended

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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
62
Security headers
45
Email security
82
DNS health
80
Network security
100
GDPR outside view
73
Average
74

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 sendlane.com, from OffSeq Breach.

Total records
4,224
Employees
184
Customers
3,638
Third parties
402
Weak passwords
13%

Latest record dated 2026-05-21 · 468 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 sendlane.com.

Select it in the checkout above.

Masked preview

  • –dls1.sendlane.com2026-05-21
  • –mfmb.sendlane.com2026-05-21
  • –companyflix.sendlane.com2026-05-21
  • –chadarmijo.sendlane.com2026-05-21
  • –matsontravelincome.sendlane.com2026-05-21

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

Open in Breach(opens in a new tab)Monitor on Breach(opens in a new tab)

Technical appendix

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

Business context

Business profile

Sendlane operates in the competitive marketing automation sector, focusing on eCommerce merchants as its primary customer base. Its SaaS business model relies on subscription revenue from integrated marketing services. The company differentiates itself by offering a unified platform that combines email, SMS, reviews, and forms, appealing to merchants seeking to consolidate their marketing stack. The presence of partner programs, customer stories, and educational resources indicates a mature ecosystem and active community engagement. The company leverages partnerships with commerce roundtables and maintains a knowledge base to support customer success. While the domain WHOIS data is unavailable, the website's professional presentation and marketing integrations suggest a legitimate and established business with medium size and technology sector focus.

Security posture

The website enforces HTTPS with strong SSL/TLS configuration and includes multiple security headers such as Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options, reflecting a solid baseline security posture. Integration with HubSpot provides secure form handling and analytics tracking. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the absence of a published security policy, incident response plan, or vulnerability disclosure program limits transparency and preparedness perception. The missing WHOIS data also detracts from domain trust. Overall, the security posture is good but could be improved by publishing explicit security and incident response information and establishing a vulnerability disclosure channel.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and compliance.
  2. Provide clear incident response contact information, including security or abuse email addresses.
  3. Implement and publicize a vulnerability disclosure policy or security.txt file.
  4. Enhance domain registration transparency by ensuring WHOIS data is publicly available or justified.
  5. Maintain and communicate data protection officer contact details if applicable to improve GDPR compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sendlane
Description
Sendlane provides a unified platform for email marketing, SMS marketing, reviews, and forms designed to drive eCommerce sales. The platform is built by merchants for merchants, focusing on unifying marketing stacks to save time and money while driving sales.
Key services
Email Marketing, SMS Marketing, Reviews, Forms, Multi-channel Automations, Deep-Data Integrations, Real-Time Analytics
Content quality
excellent
Branding
consistent

Technology

Stack
Google Tag Manager, HubSpot Analytics, HubSpot Feedback, HubSpot Ads Pixel, HubSpot Collected Forms, Demandbase, WebFont Loader, Select2, Swiper, Jetboost, Body Scroll Lock, Optibase
Frameworks
Webflow
Platforms
HubSpot
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of security headers
  • No exposed sensitive data in HTML
  • Secure forms with HubSpot integration

Analytics and tracking

Services
HubSpot Analytics, Google Analytics (via GTM)
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Facebook Ads
Tracking pixels
HubSpot Ads Pixel, ZoomInfo Pixel, Demandbase
Marketing tools
HubSpot, Jetboost, Optibase
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 no blocking or WAF challenge.
  2. Content is rich, professional, and targeted at eCommerce merchants.
  3. Strong use of modern marketing and analytics technologies.
  4. No direct company contact emails or phone numbers found in HTML; contact primarily via forms.
  5. Privacy and cookie policies are present and include consent mechanisms.
  6. No explicit security or incident response policies published.
  7. WHOIS data is missing, which is a concern for domain transparency.
  8. No suspicious or malicious content detected.
Technical notes

Notes

The website is built on Webflow CMS and uses a modern tech stack including HubSpot marketing and analytics tools, Google Tag Manager, Demandbase, and various JavaScript libraries such as Select2 and Swiper for UI enhancements. Hosting is via Webflow's CDN, ensuring fast content delivery and global availability. The site is mobile-optimized with responsive design and accessibility considerations. SEO is well addressed with proper meta tags, Open Graph, and Twitter card data. Performance is fast with asynchronous script loading and minimal blocking resources. Technical risks are low, but reliance on multiple third-party marketing and tracking services requires ongoing monitoring for privacy compliance and security updates.
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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