SSL Certificate Analysis for webvpn.nbook.app - Security Grade & TLS Configuration

Open Cached · just now

76/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 1

Let's Encrypt

Certificate Information

Subject

CN=gasbooking.in

Issuer

C=US, O=Let's Encrypt, CN=R12

Valid From

May 19, 2026

Valid Until

August 17, 2026 64 days

Public Key

RSA 4096 bit Strong

Signature Algorithm

SHA256-RSA

SHA-256 Fingerprint

23:40:31:AA:8B:95:2A:A1:B6:D2:1D:E7:9C:5F:43:AC:08:19:C7:D6:D9:24:2D:14:FE:0A:27:F3:5F:DC:42:87

Alternative Names

90 domains

Security Configuration

TLS Protocols

TLS 1.2 TLS 1.3

Forward Secrecy

Supported (Modern clients use PFS)

HTTP Security Headers

Status

Strict-Transport-Security

Missing

Not configured

Content-Security-Policy

Missing

Not configured Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Missing

Not configured

X-Content-Type-Options

Missing

Not configured

Referrer-Policy

Missing

Not configured

Permissions-Policy

Missing

Not configured

Recommendations

• Add Strict-Transport-Security header with max-age of at least 1 year
• Add Content-Security-Policy header to prevent XSS attacks
• Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
• Add X-Content-Type-Options: nosniff
• Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
• Consider adding Permissions-Policy to control browser features

CAA Records (Certificate Authority Authorization)

CAA Records

Not Configured (Any CA can issue certificates)

CAA Issues

• No CAA records configured - any CA can issue certificates

Recommendations

• Implement CAA records to restrict which CAs can issue certificates for your domain
• This adds an extra layer of security against unauthorized certificate issuance
• Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
• Consider adding 'iodef' record to receive security incident reports

Subject Alternative Names

90 domains

nbook.app *.nbook.app *.backup.nbook.app *.remoteapp.nbook.app

Other domains in certificate

*.2010b4bd-9ef2-471d-83f3-e543ed868c2d.aitradingagents.digital aitradingagents.digital *.aitradingagents.digital *.comef2-471d-83f3-e543ed868c2d.aitradingagents.digital *.f5893d4e-35ed-4922-940f-e1824a3818bf.aitradingagents.digital *.ulqyt6.aitradingagents.digital

*.14172.baltimore-county-business.com baltimore-county-business.com *.baltimore-county-business.com *.ic14.baltimore-county-business.com *.m.baltimore-county-business.com *.s3zzgptm.baltimore-county-business.com *.sqluz0408.baltimore-county-business.com *.wlmwl.baltimore-county-business.com *.y.baltimore-county-business.com *.zielt0406.baltimore-county-business.com

*.autodiscover.gasbooking.in gasbooking.in *.gasbooking.in *.hostmaster.gasbooking.in *.m.gasbooking.in *.pos.gasbooking.in *.staging.gasbooking.in *.www.gasbooking.in

*.admin.stuidio.co.uk *.app.stuidio.co.uk *.cloud.stuidio.co.uk *.help.stuidio.co.uk *.mail.stuidio.co.uk *.marketing.stuidio.co.uk *.notexistsadmin.stuidio.co.uk *.rd.stuidio.co.uk *.rds.stuidio.co.uk *.remote.stuidio.co.uk *.stg.stuidio.co.uk stuidio.co.uk *.stuidio.co.uk *.tzxacdev.stuidio.co.uk

*.apps.sumatirtakencana.com *.cctv.sumatirtakencana.com *.cozyhome.sumatirtakencana.com *.crm.sumatirtakencana.com *.ftp.sumatirtakencana.com *.localhost.sumatirtakencana.com *.m.sumatirtakencana.com *.mail.sumatirtakencana.com *.sitemap.sumatirtakencana.com *.sitemaps.sumatirtakencana.com sumatirtakencana.com *.sumatirtakencana.com *.webmail.sumatirtakencana.com