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IndustryOriginGlobal rankRank in 
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 September 9, 2026 at 10:24, www.csto2o.io has a security score of 81.5/100 (grade B – “Good”). CyStack’s automated assessment recorded 8 issues to review after completing 87.1% of applicable checks. The website owner should address “Allowed browser content (CSP)” first, then review the remaining items in order of impact.
At assessment time, CyStack did not find www.csto2o.io 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.csto2o.io 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.csto2o.io used a valid SSL certificate at assessment time, valid until October 18, 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.csto2o.io.
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.
Scope 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
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
Why it matters
DMARC lets the domain owner tell receiving services what to do when the visible From address is not verified by SPF or DKIM. Without DMARC, attackers have more opportunity to impersonate the domain in phishing email.
What to do
Publish a DMARC record at _dmarc, begin by collecting reports, and confirm that legitimate senders pass before applying a blocking policy.
Evidence and check scope
Each public IP is grouped with its open services, identified products and any CVEs that may apply to the observed version.
104.21.10.16
CloudFlare Load BalancerL
Load BalancingCloudFlare Load Balancer172.67.162.282606:4700:3031::6815:a10No open service was observed on this address in the ports checked.
2606:4700:3033::ac43:a21cNo open service was observed on this address in the ports checked.
No record associated with an @csto2o.io email address was found in the currently available data. This does not rule out incidents that have not been observed.
Review exposed email recordsThe assessment identified 25 technologies on www.csto2o.io, including 5 with a version, but CVE matching did not complete for every version. An empty result should not be treated as proof that no vulnerability exists.
Review technologies and CVEsThe assessment observed 4 public IPs and 8 open ports for www.csto2o.io. 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 1+ public subdomains of csto2o.io. 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 subdomainsReferences
References
Load BalancingVersion not visible
CloudflareCCloudflare Browser InsightsH
HTTP/3+11CloudflareCDNVersion not visibleCloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
www.cloudflare.comCloudflare Browser InsightsCloudFlare Load BalancerLLoad BalancingCloudFlare Load BalancerVersion not visibleLoad BalancingVersion not visibleProduct not identified
CloudFlare Load BalancerLoad BalancingCloudFlare Load BalancerVersion not visibleLoad BalancingVersion not visibleCloudflareCCloudflare Browser InsightsHHTTP/3+10CloudflareCDNVersion not visibleCloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
www.cloudflare.comCloudflare Browser InsightsAnalytics · RUMVersion not visibleCloudflare Browser Insights is a tool that measures the performance of websites from the perspective of users.
www.cloudflare.comHTTP/3MiscellaneousVersion not visibleHTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web.
httpwg.org
jQueryJavaScript LibrariesVersion not visiblejQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
jquery.comjQuery MigrateJavaScript Libraries3.4.1Query Migrate is a javascript library that allows you to preserve the compatibility of your jQuery code developed for versions of jQuery older than 1.9.
github.com/jquery/jquery-migrate
LiteSpeedWeb ServersVersion not visibleLiteSpeed is a high-scalability web server.
litespeedtech.com
MysqlDatabasesVersion not visibleMySQL is an open-source relational database management system.
mysql.com
PHPProgramming LanguagesVersion not visiblePHP is a general-purpose scripting language used for web development.
php.net
WordPressBlogs · CMSVersion not visibleWordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. Features include a plugin architecture and a template system.
wordpress.org
FlatsomeWordpress Theme3.20.9
Gwd Banner Image DynamicWordpress Plugin1787992888Litespeed CacheWordpress Plugin · Caching · WordPress Plugins7.9LiteSpeed Cache is an all-in-one site acceleration plugin for WordPress.
www.litespeedtech.com/products/cache-plugins/wordpress-acceleration
Mlink PluginWordpress Plugin7.0CloudFlare Load BalancerLLoad BalancingCloudFlare Load BalancerVersion not visibleLoad BalancingVersion not visibleProduct not identified
Cloudflare Browser Insights is a tool that measures the performance of websites from the perspective of users.
www.cloudflare.comHTTP/3MiscellaneousVersion not visibleHTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web.
httpwg.orgjQueryJavaScript LibrariesVersion not visiblejQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
jquery.comjQuery MigrateJavaScript Libraries3.4.1Query Migrate is a javascript library that allows you to preserve the compatibility of your jQuery code developed for versions of jQuery older than 1.9.
github.com/jquery/jquery-migrateLiteSpeedWeb ServersVersion not visibleLiteSpeed is a high-scalability web server.
litespeedtech.comMysqlDatabasesVersion not visibleMySQL is an open-source relational database management system.
mysql.comMySQLDatabasesVersion not visibleMySQL is an open-source relational database management system.
mysql.comPHPProgramming LanguagesVersion not visiblePHP is a general-purpose scripting language used for web development.
php.netWordPressBlogs · CMSVersion not visibleWordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. Features include a plugin architecture and a template system.
wordpress.orgFlatsomeWordpress Theme3.20.9Gwd Banner Image DynamicWordpress Plugin1787992888Litespeed CacheWordpress Plugin · Caching · WordPress Plugins7.9LiteSpeed Cache is an all-in-one site acceleration plugin for WordPress.
www.litespeedtech.com/products/cache-plugins/wordpress-accelerationMlink PluginWordpress Plugin7.0Recently completed assessments, prioritizing websites with a similar sector, country or security grade for easier comparison.
