Other
Yes, klm.nl is trustworthy with a high score of 94. This indicates that the website is generally safe for users.
Klm.nl is the official website of KLM, where you can find information about flights, bookings, and other services of the airline.
Verisite checked klm.nl on June 24, 2026 and gave it a trust score of 94/100. Out of 76 checks, 60 passed, with 14 warning(s) and 2 failed check(s).
94
/100
Trust Score
Excellent
11
Passed
1
Warning
1
Failed
Security Headers
Checks HTTP security headers and cookie security configuration.
Security headers are well configured.
Information Exposure
Checks for exposed sensitive files, directory listings, and information disclosure.
No exposed sensitive files or directories found.
Content Security
Scans page content for suspicious scripts, iframes, external forms, and cryptominers.
No suspicious content detected on the page.
SSL Certificate
Verifies the SSL/TLS certificate validity and configuration.
Valid SSL certificate found (expires 2026-09-21).
Domain Age
Checks the age of the domain registration. Very young domains are often associated with fraud.
The domain age could not be determined.
Privacy & Cookies
Checks for tracking cookies, consent mechanisms, and third-party trackers.
No tracking cookies or third-party trackers detected.
Business Data
Checks for chamber of commerce number, VAT number, contact details, and required legal pages.
Business data is well represented on the website.
Reviews & Trust Seals
Checks external reviews (Trustpilot) and trust seals (Kiyoh, WebwinkelKeur).
No reviews or trust seal found.
Malicious / Safety
Checks if the domain appears on known fraud or phishing lists.
This domain was not found on any known fraud or phishing lists.
Technology & Software
Detects CMS, frameworks, and JavaScript libraries and checks for outdated versions.
No outdated or vulnerable software detected.
Email Authentication
Analyzes SPF, DKIM and DMARC configuration for email authentication.
Email authentication is well configured with SPF, DKIM and/or DMARC.
Network & Transport
Checks open ports, HTTP protocol support, redirect chain, and mixed content.
Some network configuration issues were found.
DNS & Server
Checks DNS records, server information and hosting details.
DNS records are properly configured.
Security Headers
Checks HTTP security headers and cookie security configuration.
85/100
Security headers are well configured.
- Domain
- klm.nl
- Cookies
-
- Total: 3
- Issues: ak_bmsc: missing Secure flag, ak_bmsc: missing SameSite attribute, bm_mi: missing SameSite attribute, bm_sz: missing Secure flag, bm_sz: missing SameSite attribute
- Secure cookies: 0
- Insecure cookies: 3
- HSTS max-age
- 15768000
- Missing headers
- Permissions-Policy
- HSTS preload
- Yes
- Used browser fallback
- No
- Referrer-Policy
- Yes
- X-Frame-Options
- Yes
- HSTS includes subdomains
- Yes
- Permissions-Policy
- No
- X-Content-Type-Options
- Yes
- Content-Security-Policy
- Yes
- Strict-Transport-Security
- Yes
Technology & Software
Detects CMS, frameworks, and JavaScript libraries and checks for outdated versions.
100/100
No outdated or vulnerable software detected.
- Detected CMS
-
- Name:
- Slug:
- Version:
- Detected: No
- Confidence: none
- Domain
- klm.nl
- JavaScript libraries
- Pages scanned
- 13
- Vulnerable libraries
- Server technology
-
- Server: nginx
- Powered by:
- X generator:
Information Exposure
Checks for exposed sensitive files, directory listings, and information disclosure.
100/100
No exposed sensitive files or directories found.
- Domain
- klm.nl
- Exposures
- Robots.txt analysis
-
- Exists: Yes
- Interesting paths:
- Paths checked
- 18
- Exposures found
- 0
- Directory listing enabled
- No
Email Authentication
Analyzes SPF, DKIM and DMARC configuration for email authentication.
72/100
Email authentication is well configured with SPF, DKIM and/or DMARC.
- SPF
-
- Exists: Yes
- Policy: hardfail
- Record: v=spf1 -all
- Mechanisms: all
- Policy label: checks.email_spf_hardfail
- Authorized senders:
- DKIM
-
- Found: No
- Selectors:
- DMARC
-
- Exists: Yes
- Policy: reject
- Record: v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
- Percentage:
- Policy label: checks.email_dmarc_reject
- Has reporting: Yes
- Subdomain policy:
- Domain
- klm.nl
- Authorized senders
Domain Age
Checks the age of the domain registration. Very young domains are often associated with fraud.
100/100
The domain age could not be determined.
- Domain
- klm.nl
Privacy & Cookies
Checks for tracking cookies, consent mechanisms, and third-party trackers.
100/100
No tracking cookies or third-party trackers detected.
- Domain
- klm.nl
- Detected trackers
- Pages scanned
- 12
- Total cookies
- 5
- Third-party trackers found
- 0
- Tracking cookies
- Consent mechanism detected
- No
- Tracking cookies found
- 0
Network & Transport
Checks open ports, HTTP protocol support, redirect chain, and mixed content.
75/100
Some network configuration issues were found.
- Domain
- klm.nl
- Open ports
- Mixed content domains
- Pages scanned
- 13
- Redirect chain
- HTTP/2 support
- No
- HTTP/3 support
- No
- Open ports found
- 0
- Redirect loop detected
- No
- Mixed content resources
- 0
- Redirect chain length
- 0
- HTTP redirects to HTTPS
- No
Content Security
Scans page content for suspicious scripts, iframes, external forms, and cryptominers.
100/100
No suspicious content detected on the page.
- Domain
- klm.nl
- Cryptominer scripts
- Pages scanned
- 11
- External form domains
- External script sources
- www-nl.static-kl.com, rda00747.jscrambler.com, cdn.optimizely.com, dok.js-cdn.dynatrace.com
- Obfuscation patterns
- 0
- Cryptominers detected
- 0
- Suspicious iframe details
- External form targets
- 0
- Obfuscated code patterns
- External script domains
- 4
- Suspicious iframes
- 0
Business Data
Checks for chamber of commerce number, VAT number, contact details, and required legal pages.
70/100
Business data is well represented on the website.
- Domain
- klm.nl
- Email address present
- Yes
- Phone number present
- Yes
- Terms and conditions present
- No
- Chamber of Commerce number found
- No
- VAT number found
- No
- Physical address present
- Yes
- Pages scanned
- 13
- Return policy present
- No
- Privacy policy present
- Yes
- Privacy policy page
- /information/legal/privacy-policy
- Contact details found
- 3
Reviews & Trust Seals
Checks external reviews (Trustpilot) and trust seals (Kiyoh, WebwinkelKeur).
10/100
No reviews or trust seal found.
- Domain
- klm.nl
- Kiyoh trust seal found
- No
- Trust seal present
- No
- Review sources
- Trustpilot page
- https://www.trustpilot.com/review/klm.nl
- Trustpilot profile found
- No
- WebwinkelKeur trust seal found
- No
Malicious / Safety
Checks if the domain appears on known fraud or phishing lists.
100/100
This domain was not found on any known fraud or phishing lists.
- Checked domain
- klm.nl
SSL Certificate
Verifies the SSL/TLS certificate validity and configuration.
100/100
Valid SSL certificate found (expires 2026-09-21).
- Expiry date
- 2026-09-21
- Issuer
- Let's Encrypt
- Subject
- klm.nl
- Valid until
- 2026-09-21
- Valid from
- 2026-06-23
- TLS version
- TLSv1.3
- Serial number
- 059D141D84A1CDEF8487F5EECEA7F8FC5993
DNS & Server
Checks DNS records, server information and hosting details.
100/100
DNS records are properly configured.
- IP Address
- 2.16.183.4
- SPF record
- Yes
- IPv6 support
- Yes
- DMARC record
- Yes
- DNSSEC
- Yes
- MX Records
- mx2.afkl.c3s2.iphmx.com, mx1.afkl.c3s2.iphmx.com
- Nameservers
- a1-101.akam.net, a9-67.akam.net, a4-65.akam.net, a3-64.akam.net, a22-66.akam.net, a20-65.akam.net
- Reverse DNS
- a2-16-183-4.deploy.static.akamaitechnologies.com
- IP Addresses
- 2.16.183.4, 2.16.183.19
- IPv6 Addresses
- 2a02:26f0:3500:18::1724:a294, 2a02:26f0:3500:18::1724:a284
About this website
Klm.nl is the website of KLM, the national airline of the Netherlands. On this site, users can find information about flights, bookings, and other services. Unfortunately, no homepage content could be retrieved, but the technical checks indicate that the site performs well overall.
The website has achieved several important scores: security headers (85), technology (100), and privacy (90). This points to a strong technical foundation and good handling of user data. However, there are also some points of concern, such as a warning for the network and low scores for reviews.
What our scores mean for you
The high score of 94 means that klm.nl is generally safe. However, the warning for the network may indicate a partial issue that could affect trust. Additionally, the low review score (10) presents a concrete risk for users, suggesting that there may be negative experiences that are not being adequately addressed.
Score evolution
There is no previous score available for klm.nl, so we cannot provide information on score evolution.
What this means
Verisite is an independent platform that runs automated trust checks on websites. This result means that visitors to klm.nl can generally feel safe, but they should be aware of the low review score. For KLM itself, this score indicates that they perform well in technical areas but need to pay attention to customer feedback and reviews to maintain user trust.
Frequently asked questions
Does klm.nl have a valid SSL certificate?
Yes, klm.nl has a valid SSL certificate, meaning your data is secure while browsing.
Has klm.nl ever been reported for fraud?
No external red flags or evidence have been found indicating that klm.nl has ever been reported for fraud.
Are there negative reviews about klm.nl?
Yes, klm.nl has a low review score, which may indicate negative user experiences.
Is it safe to book online on klm.nl?
While klm.nl has a high score, it is important to consider the low review score.
What does the network warning mean?
The network warning indicates a partial issue that could affect trust.
How old is the domain klm.nl?
The domain klm.nl has a high score for domain age, indicating that it has been around for a long time.