Trusted but Verify
Current checks include security-provider warnings. Review the detected warnings and supporting trust evidence before relying on the site.
We reviewed hackmd.io and found mostly positive signals. Current checks lean toward a legitimate, lower-risk profile, although a few caution points still keep it short of a fully verified standing. The current trust score is 79/100. Key signals include security-provider warnings, strong independent trust, and a long-term SSL certificate (13 months). Verify key details before sharing personal information or relying on the site for important actions.
Figure 2.
Website screenshot for Hackmd.io.
2026-06-27 17:33:13
FAQ
Is hackmd.io safe?
Based on current analysis, hackmd.io appears to be generally safe. Signals such as security-provider warnings and strong independent trust support this assessment. Basic verification is still reasonable before relying on the site.
Why does hackmd.io look trustworthy?
Key factors include registrar information (Gandi SAS), hosting in US, a domain age of 11.3 years, and presence in public traffic rankings. The trust score blends security detections, domain and infrastructure signals, and on-page behavior patterns. Taken together, these factors support a mostly positive trust assessment, although routine verification is still reasonable.
Hackmd Digital Footprints
A structured view of the site's detected themes, page signals, and related online footprint elements.
Cryptocurrency
This website references cryptocurrency transactions or educational content related to digital assets such as Bitcoin, Ethereum, or other blockchain-based currencies.
Deals
Helpdesk
This site includes structured support channels such as help center, ticketing, chat, or service contact pages.
Registration Form
Automated page analysis detected form or data-entry functionality on hackmd.io. Forms can involve user-submitted information, so verify ownership and privacy terms before entering data.
Cookie Consent
This site implements a cookie-consent interface for managing tracking and data-collection preferences.
Social Media Links
The presence of social media links on the website indicates that it references social media accounts. This signal alone does not confirm ownership or authenticity of those profiles.
Long Term SSL Certificate
The SSL certificate for hackmd.io is valid for more than 6 months, indicating a long-term commitment to security and trust.
Popular Site
This site shows elevated traffic signals relative to similar domains; this is generally positive but does not by itself prove legitimacy.
Established Domain
This site has maintained active domain presence over time, indicating operational continuity.
Verified LinkedIn Page
Ownership verification confirms that hackmd.io controls the LinkedIn page HackMD (2,176 followers, 0 LinkedIn employees, company size 11-50 employees, founded 2017, industry: Software Development, headquarters: Los Gatos).
Verified Business Services
This domain publishes TXT verification records for multiple third-party business platforms. This indicates that the domain has been connected to those services at the DNS level.
Business Infrastructure
This domain is configured for several service layers, such as email delivery, platform verification, or security tooling. This reflects a broader operational setup than a minimal single-purpose deployment.
External provider warnings: 1/27
This section shows what independent external security sources say about this site.
A warning appears when one or more sources report malware, phishing, abuse, or other safety concerns. Each row shows the source and its verdict.
If no source reports a warning, the site is shown as clear in this section.
CRDF
Malicious
BBB
Clean
BitDefender
Clean
Kaspersky
Clean
ESET
Clean
Sophos
Clean
Google Safebrowsing
Clean
Fortinet
Clean
G-Data
Clean
Webroot
Clean
Dr.Web
Clean
Forcepoint ThreatSeeker
Clean
CyRadar
Clean
Lionic
Clean
Phishing Database
Clean
Phishtank
Clean
OpenPhish
Clean
alphaMountain.ai
Clean
Netcraft
Clean
Sucuri SiteCheck
Clean
Criminal IP
Clean
URLhaus
Clean
Emsisoft
Clean
Spam404
Clean
Trustwave
Clean
VX Vault
Clean
Quttera
Clean
External provider results for Hackmd.io, last checked June 27, 2026.
Domain Information
CreatedApril 20, 2015 at 8:57 AMUpdated: March 21, 2026 at 9:00 AM · Expires: April 20, 2027 at 8:57 AM
Hosting ProviderAS16509 Amazon.com, Inc.Seattle, Washington, US
SSL CertificateAmazon RSA 2048 M04TLS 1.2 · Valid for: 13 months · from January 5, 2026 at 12:00 AM · to February 2, 2027 at 11:59 PM
Name Serversns-1444.awsdns-52.org ns-1925.awsdns-48.co.uk ns-221.awsdns-27.com ns-845.awsdns-41.net
Content Analysis
Website titleHackMD: Your Collaborative Markdown Workspace for Knowledge Sharing
Website descriptionHackMD gives you a real-time Markdown editor for collaborative work. Working with Markdown files in HackMD is simple, straightforward, and fun.
Primary Language
Profile
HackMD
· 2,176 followers
· founded 2017
· Software Development
· size 11-50 employees
Verified ServicesThis domain has been verified by the following legitimate services and organizations, confirming authentic ownership and proper email security configuration.
1password
Password manager verification.
Apple
Apple Inc. services verification.
Bw
Cursor SSO
AI code editor single sign-on.
Google Verification
Domain ownership verified by Google.
Linkedin
Microsoft 365
Microsoft cloud productivity suite (Office, email, etc.).
Zoho SPF
Email authentication for Zoho services.
Security FingerprintUnique identifier based on site analysis
Hackmd.io is ranked within the top 50,000 websites globally.
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Are You the Owner?
If you own Hackmd.io and want to challenge the trust score, please submit a review request via portal.gridinsoft.com. There you can claim your profile and add verified company/contact details. If you cannot access the portal, email legal(at)gridinsoft.com with proof of legitimacy and contact details. We never charge website owners for reviews or reconsideration requests. For more information, please review our Disclaimer.
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Help protect others by sharing this page on social media! The more people who know about hackmd.io, the fewer chances they have to deceive someone else.Help others evaluate hackmd.io by sharing this page on social media!
Help protect others by sharing this page on social media! The more people who know about hackmd.io, the fewer chances they have to deceive someone else. Help others evaluate hackmd.io by sharing this page on social media!