Security Analysis Results

killercoda.com

Comprehensive domain security and infrastructure analysis

Live Website Preview

website screenshot of https://u9795854.ct.sendgrid.net/ls/click?upn=u001.ZaJgfsBCRINonA73mZ4qyjk7UMf3QecXLm-2FZ-2FFG046iCUGVsz8DN-2FHgS9TvvIzrHw-2BZhl5M004YXYnB-2BJhAwTcn1ShM7Sb-2FaHXOBiAzfZCxXcJEuV2orF17dKNFIl2YuC-kj_V2UcokP7OL8kAHpQ7I3eGVcjLRRg39dhFASfo1fq1zk2SD1nW8GyQYPghfGtVGkgKctecBuZ21yWR4pzU6JH-2Bo7sfxG-2Bk-2FBSoylqJXfksS5G7b3vtnpwxEswl11jP-2B8HCjcXIqnDi1ewjxVthukRQtYRYe0OBtYPKWHDBmkdS0TVvpR-2FlSDzeErF0zKCEExmwSuv6SwcI1nYomt0QOg0dxbORZO1QUwjbVFSyFkBnGuAQbBMh8KFtG2fsQrD6QDd

No Security Risks Detected

This domain appears to be safe and secure

100%
Score

Disclaimer: This assessment is based on automated analysis of publicly available information. Results are for informational purposes only. For critical applications, consult security professionals.

Page Information

Target URL
https://u9795854.ct.sendgrid.net/ls/click?upn=u001.ZaJgfsBCRINonA73mZ4qyjk7UMf3QecXLm-2FZ-2FFG046iCUGVsz8DN-2FHgS9TvvIzrHw-2BZhl5M004YXYnB-2BJhAwTcn1ShM7Sb-2FaHXOBiAzfZCxXcJEuV2orF17dKNFIl2YuC-kj_V2UcokP7OL8kAHpQ7I3eGVcjLRRg39dhFASfo1fq1zk2SD1nW8GyQYPghfGtVGkgKctecBuZ21yWR4pzU6JH-2Bo7sfxG-2Bk-2FBSoylqJXfksS5G7b3vtnpwxEswl11jP-2B8HCjcXIqnDi1ewjxVthukRQtYRYe0OBtYPKWHDBmkdS0TVvpR-2FlSDzeErF0zKCEExmwSuv6SwcI1nYomt0QOg0dxbORZO1QUwjbVFSyFkBnGuAQbBMh8KFtG2fsQrD6QDd
Page Title
Killercoda Interactive Environments
killercoda.com faviconSite Favicon
Status
Active

Host Information

Domain
killercoda.com
Server
cloudflare
Country
United States
IP Address
104.26.14.111
ASN Information
13335
CLOUDFLARENET

Technologies

Proton Mail logo
Proton Mail
Webmail
Vue.js logo
Vue.js
JavaScript frameworks
HSTS logo
HSTS
Security
Cloudflare logo
Cloudflare
CDN

SSL Certificate

HTTPS Enabled
Secure
Certificate Issuer
N/A
Valid From
2025-12-26 18:03:14
Valid Until
2026-12-27 18:03:14
Subject Name
killercoda.com

Performance Statistics

6
Total Requests
2
Domains
2
IP Addresses
744.97 KB
Transfer Size
Content Size2.27 MB

HTTP Headers

CF-RAY
9b4abbc7db75d80b-DFW
Cache-Control
max-age=3600, must-revalidate, proxy-revalidate
Connection
keep-alive
Content-Encoding
br
Content-Type
text/html
Date
Sat, 27 Dec 2025 18:03:14 GMT
Nel
{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Report-To
{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=h4kVZpiDiOS0nj83wxa3eb28h0Ee7lJcXmPZwsbmQyhbu7Bjmt%2BgLv3lkD0rkKwwnxmXtdFrR%2BKIEPuN0adpv6wQIWRF3%2Frzq9wr"}]}
Server
cloudflare
Strict-Transport-Security
max-age=2592000; includeSubDomains; preload
Transfer-Encoding
chunked
Vary
accept-encoding
X-Content-Type-Options
nosniff
cf-cache-status
MISS
content-security-policy
frame-ancestors 'none'
last-modified
Mon, 22 Dec 2025 14:47:15 GMT
x-frame-options
DENY
17 headers detected

Technology Stack Analysis

Proton Mail

Proton Mail

Webmail

Proton Mail is the world’s largest secure email service with over 70 million users. Available on Web, iOS, Android, and desktop. Protected by Swiss privacy law.

Vue.js

Vue.js

JavaScript frameworks

Vue.js is an open-source model–view–viewmodel JavaScript framework for building user interfaces and single-page applications.

HSTS

HSTS

Security

HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.

Cloudflare

Cloudflare

CDN

Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.

External Links 4

Untitled Link

x.com

Analyze
Target URL
https://x.com/killercoda

Untitled Link

www.linkedin.com

Analyze
Target URL
https://www.linkedin.com/company/killercoda

Killer Shell

killer.sh

Analyze
Target URL
https://killer.sh

Kim Wuestkamp

www.linkedin.com

Analyze
Target URL
https://www.linkedin.com/in/kimwuestkamp

Requested Domains 2

killercoda.com

Apex domain
Categories
TechnologyTechnology

u9795854.ct.sendgrid.net

Unknown Type
No category information available
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