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log into facebook to start sharing and connecting with your friends, family, and people you know.
IndustryOriginGlobal rankRank in United States
Updated at The higher the score, the more externally observable protections the system has recorded. This page does not certify that the website is reputable, legitimate, or completely free of vulnerabilities.
As of August 26, 2026 at 18:05, www.facebook.com has a security score of 90.2/100 (grade A – “Excellent”). CyStack’s automated assessment recorded 9 issues to review after completing 100% of applicable checks. The website owner should address “Supported TLS versions” first, then review the remaining items in order of impact.
At assessment time, CyStack did not find www.facebook.com or related infrastructure on any scam, phishing, or malware warning list after checking 5 online reputation sources. This result reflects external observations; it does not guarantee absolute safety or verify the organization’s legal status or reputation.
Addresses, servers and services that are visible from the Internet.
Frequently asked questions
A valid SSL certificate still does not prove that www.facebook.com is safe, legitimate, or free of scam signals. For a more complete assessment, this report also checks phishing and malware, exposed email records, IPs and open ports, subdomains, technologies, and CVEs that may apply to observed versions.
www.facebook.com used a valid SSL certificate at assessment time, valid until September 3, 2026. This status may change when the certificate expires or the server configuration changes.
Review HTTPS and certificateData sources
CyStack compiles scan results from its internal cybersecurity monitoring systems, including CyStack VulnScan and CyStack Threat Intelligence, together with publicly available Internet data. The assessment only observes and analyzes information already available; it does not attempt unauthorized access, test passwords, send exploit code, or change or disrupt the assessed system.
CyStack VulnScan continuously discovers assets, validates vulnerabilities, and helps security teams prioritize remediation across the enterprise.
These 3 failed checks or warnings have the greatest impact on the result for www.facebook.com.
Why it matters
TLS 1.0 and TLS 1.1 use outdated security designs and are no longer accepted by modern standards. Leaving them enabled allows older, weaker connection methods.
What to do
Disable TLS 1.0 and TLS 1.1, support TLS 1.2 securely, and enable TLS 1.3 where possible.
Evidence and check scope
References
Why it matters
Content Security Policy (CSP) limits where scripts, styles, frames, and other browser content may come from. A strong policy reduces the impact if an attacker manages to inject content into a page.
What to do
Define only the sources the application needs, test the policy before activating it, and avoid broad wildcard (*) rules, unsafe-inline, and unsafe-eval where possible.
Why it matters
A certificate works only between its start and expiry dates. An expired, not-yet-valid, or soon-to-expire certificate can trigger browser warnings and interrupt access to the website or API.
What to do
Use automatic renewal, monitor renewal failures, and alert the responsible team well before expiry.
Diagnostic information
Each public IP is grouped with its open services, identified products and any CVEs that may apply to the observed version.
57.144.150.1edge-star-mini-shv-02-sin11.facebook.com
ProxygenProxygenVersion not visible2a03:2880:f34c:1:face:b00c:0:25deedge-star-mini6-shv-01-sin2.facebook.comNo open service was observed on this address in the ports checked.
There are currently 10,000+ exposed email records matching the facebook.com domain. These records may be old or already resolved. The website owner should verify them before resetting passwords or locking related accounts.
Review exposed email recordsThe assessment identified 5 technologies on www.facebook.com, but no version was reliable enough for accurate CVE matching.
Review technologies and CVEsThe assessment observed 2 public IPs and 2 open ports for www.facebook.com. An open port is not the same as a vulnerability, but the website owner should keep every public service updated and appropriately restrict access.
Review IPs and open portsThe assessment observed 703+ public subdomains of facebook.com. This list can reveal additional entry points such as APIs, administration systems, or test environments, but it does not mean that every subdomain is risky.
Review discovered subdomainsScope of this check
This check only evaluates the homepage response and content that the scanner could reach. Other pages and sign-in flows may use different settings.
Evidence and check scope
References
The available certificate evidence was not sufficient to conclude this certificate requirement.
Evidence and check scope
HSTSH
HTTP/3HSTSSecurityVersion not visibleHTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
www.rfc-editor.org/rfc/rfc6797#section-6.1HTTP/3MiscellaneousVersion not visibleHTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web.
httpwg.orgRecently completed assessments, prioritizing websites with a similar sector, country or security grade for easier comparison.
United States
