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MDSL

Calero-MDSL provides technology expense management solutions for enterprises. The company offers software and services to help organizations manage, optimize, and control their telecommunications, mobile, and cloud expenses. Its platform includes invoice processing, contract management, and cost allocation tools. UpGuard continuously monitors the security posture of MDSL using open-source, commercial, and proprietary threat intelligence feeds. Our analysis is centered on objective, externally verifiable information.

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MDSL Security Rating

MDSL's security rating is based on the analysis of their external attack surface. The higher the rating, the better their security posture. Start a free trial to get a more in-depth risk assessment for MDSL.

Company info

MDSL
Company MDSL Employees 570 Location Tunbridge Wells, United Kingdom Last updated April 9, 2026

Last updated April 9, 2026

MDSL Vendor Risk Report

This vendor risk report is based on UpGuard's continuous monitoring of MDSL's security posture using open-source, commercial, and proprietary threat intelligence feeds. The results are summarized into a security rating based on the analysis of hundreds of individual checks across five risk categories: website security, email security, phishing & malware, brand & reputation risk, and network security.

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Website Security

MDSL

CSP is not implemented

No valid Content Security Policy is implemented. This increases the risk of XSS and clickjacking attacks.

X-Content-Type-Options is not nosniff

Browsers may interpret files as a different MIME type than what is specified in the Content-Type HTTP header. This can lead to MIME confusion attacks.

Server information header not exposed

Ensuring the server information header is not exposed reduces the ability of attackers to exploit certain vulnerabilities.

X-Powered-By header not exposed

Information about specific technology used on the server is obscured.

X-Frame-Options is not deny or sameorigin

Browsers are prevented from displaying this website's content in frames. This helps mitigate clickjacking attacks.

Referrer policy is not unsafe-url

The website's Referrer Policy is not configured to allow unsafe information to be sent in the referrer header.

ASP.NET version header not exposing specific ASP.net version

Ensuring the ASP.NET version header is not exposing a specific version makes it harder for attackers to exploit certain vulnerabilities.

ASP.NET version header not exposed

Ensuring the ASP.NET version header is not exposed makes it harder for attackers to exploit certain vulnerabilities.

No unmaintained page detected

The page appears to be maintained.

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Email

MDSL

DMARC policy percentage is less than 100%

DMARC policy percentage is less than 100%. The pct tag should be removed or set to 100 to ensure the policy is applied to all mail.

DMARC policy is not p=none

DMARC reject policy provides the most effective protection against fraudulent emails being sent from a domain.

DMARC policy exists

DMARC protects against fraudulent emails being sent from a domain.

Strict SPF filtering - not using +all

Sender Policy Framework (SPF) record strictly enforces specific domains allowed to send email on its behalf.

SPF syntax correct

Sender Policy Framework (SPF) record passes basic syntax checks.

SPF ptr mechanism not used

Sender Policy Framework (SPF) record does not include the ptr mechanism.

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Network

MDSL

'HTTP' port open

The 'HTTP' service is running and exposed to the internet. The configuration of the server should be reviewed and unnecessary ports closed.

'HTTPS' port open

The 'HTTPS' service is running and exposed to the internet. The configuration of the server should be reviewed and unnecessary ports closed.

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DNS

MDSL

DNSSEC not enabled

DNSSEC records prevent third parties from forging the records that guarantee a domain's identity. DNSSEC should be configured for this domain.

No unregistered MX records detected

No unregistered MX records that could lead to receiving mail on behalf of the target organization were detected.

Domain has not expired

Domain has not expired.

No subdomain takeover vulnerability detected

No dangling DNS records that could lead to subdomain takeover were detected.

Domain does not expire soon

Domain does not expire within 30 days.

Domain not flagged as inactive

Domain is not flagged as inactive.

Domain not pending deletion

Domain is not pending deletion with the registrar.

Domain not pending restoration

Domain is not pending restoration with the registrar.

Domain registrar or registry transfer protection enabled

Domain is protected from unsolicited transfer requests.

Domain free of registrar DNS resolution hold

Domain is not under a DNS resolution hold with the registrar.

Domain free of registry DNS resolution hold

Domain is not under a DNS resolution hold with the registry itself.

Domain renewal not prohibited by registry

Domain is not prohibited from renewal at the registry itself.

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Encryption

MDSL

SSL not available

SSL is the standard encryption method for browsing websites. Enabling SSL requires installing an SSL certificate on the site.

HTTP does not redirect to HTTPS

The domain is still accessible over HTTP. All HTTP requests should be redirected to HTTPS.

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Data leakage

MDSL

No open cloud storage service detected

No cloud storage service configured to allow anonymous file listing was detected.

Domain index is not a listable directory

The domain index is not a listable directory.

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IP/Domain Reputation

MDSL

No reports of botnet activity in the last 30 days

This IP/domain has not been reported as a source of botnet activity in the last 30 days.

No reports of brute force login attempts in the last 30 days

This IP/domain did not appear on any list of IPs and domains known to perform brute force login attempts in the last 30 days.

No reports of malware distribution in the last 30 days

This IP/domain has been reported for distributing malware in the last 30 days.

No reports of unsolicited scanning in the last 30 days

This IP/domain has not been reported for performing unsolicited scanning in the last 30 days.

No reports of phishing activity in the last 30 days

This IP/domain has not been reported as a phishing site in the last 30 days.

No reports of botnet activity in the last 90 days

This IP/domain has not been reported as a source of botnet activity in the last 90 days.

No reports of brute force login attempts in the last 90 days

This IP/domain did not appear on any list of IPs and domains known to perform brute force login attempts in the last 90 days.

No reports of malware distribution in the last 90 days

This IP/domain has been reported for distributing malware in the last 90 days.

No reports of unsolicited scanning in the last 90 days

This IP/domain has not been reported for performing unsolicited scanning in the last 90 days.

No reports of phishing activity in the last 90 days

This IP/domain has not been reported as a phishing site in the last 90 days.

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Security reports related to MDSL

Compare MDSL's security performance with other companies in their industry.

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Website Security scan results table Cyber security rating score 850 out of 950