Network and domain lookup
Inspect IP, DNS, WHOIS, HTTP headers, SSL certificates, and connectivity.
Subcategories
This category is split by real user workflows so each tool set is easier to scan.
Inspect IP, DNS, WHOIS, HTTP headers, SSL certificates, and connectivity.
IP, domains and DNS7 toolsHigh-frequency IP, geolocation, DNS, and WHOIS lookups.
Subnets, addresses and routing7 toolsIPv4/IPv6 subnetting, address conversion, CIDR aggregation, and random addresses.
Web protocols and certificates23 toolsHTTP headers, redirects, compression, origin exposure, CORS, CSP, security-header audits, cache/security policy generators, browser fingerprints, SSL, ports, MIME, user agents, and certificate parsing.
GNSS and NTRIP4 toolsNMEA parsing, checksums, NTRIP source tables, and STR generation.
IP, domains and DNS
High-frequency IP, geolocation, DNS, and WHOIS lookups.
Current IP lookup
View your current public IP address and basic request information.
LookupToolChakanDNS lookup
Inspect common DNS records such as A, AAAA, CNAME, MX, NS, and TXT.
LookupToolChakanDNS propagation checker
Compare DNS records across multiple public resolvers and check whether a target value has propagated.
LookupToolChakanAuthoritative NS difference checker
Query authoritative name servers directly, compare multi-NS record consistency, inspect SOA serial drift, and see how public resolvers align with the authoritative result.
LookupToolChakanDNSSEC deep health checker
Inspect DNSKEY, DS, RRSIG, algorithms, digest types, TTL and resolver consistency to verify whether the parent-child DNSSEC chain appears complete.
LookupToolChakanWHOIS domain lookup
Inspect public domain registration, registrar, status, dates, and nameserver information.
LookupToolChakanIP geolocation lookup
Look up approximate country, region, city, ISP, ASN, and timezone information for IPv4 or IPv6 addresses.
LookupToolChakanSubnets, addresses and routing
IPv4/IPv6 subnetting, address conversion, CIDR aggregation, and random addresses.
IPv4 subnet calculator
Calculate network address, broadcast address, host range, wildcard mask, and usable host count for IPv4/CIDR.
LookupToolChakanIPv6 subnet calculator
Inspect IPv6 prefix, network range, and address capacity from CIDR notation.
LookupToolChakanRoute trace result explainer
Parse pasted traceroute, tracert, or mtr output locally and explain hop latency, timeout patterns, packet-loss clues, and the next troubleshooting priority.
LookupToolChakanIP number converter
Use this ip number converter tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanIPv6 compress and expand
Expand and compress IPv6 addresses to inspect their canonical text representation.
LookupToolChakanCIDR aggregation checker
Merge IPv4 CIDR ranges into the smallest equivalent CIDR list for network whitelist cleanup.
LookupToolChakanRandom IP and MAC generator
Use this random ip and mac generator tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanWeb protocols and certificates
HTTP headers, redirects, compression, origin exposure, CORS, CSP, security-header audits, cache/security policy generators, browser fingerprints, SSL, ports, MIME, user agents, and certificate parsing.
HTTP headers checker
Use this http headers checker tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanRedirect chain checker
Trace HTTP redirects, final URL, status codes, hop count, protocol or host changes, and SEO risks.
LookupToolChakanHTTP cache and CDN edge checker
Inspect Cache-Control, Age, Vary, ETag, CDN cache hit or bypass signals, and edge-cache optimization advice for a URL.
LookupToolChakanStatic asset cache strategy checker
Sample a page's CSS, JavaScript, images, fonts, and icons to inspect TTL, immutable, ETag, compression, and broken asset risks.
LookupToolChakanPage resource 404 and performance checker
Sample page resources to find broken assets, redirects, mixed content, render-blocking scripts, missing image dimensions or alt text, and large files.
LookupToolChakanThird-party script governance checker
Sample third-party scripts on a page and inspect SRI, crossorigin, render-blocking behavior, version hints, cache policy, and supply-chain governance risks.
LookupToolChakanGzip and Brotli compression checker
Check whether a URL response enables gzip, brotli, or related content compression and inspect Vary, cache, and content-type signals.
LookupToolChakanOrigin exposure audit
Audit direct DNS exposure, CDN edge hints, HTTP to HTTPS redirects, security headers, and Server or X-Powered-By header leaks.
LookupToolChakanCORS header checker
Check CORS preflight and read-response headers for a URL, Origin, method, and custom request headers without sending write requests.
LookupToolChakanCSP policy checker
Inspect a URL's Content-Security-Policy and Report-Only headers, then flag risky default-src, script-src, object-src, base-uri, and frame-ancestors settings.
LookupToolChakanReferrer-Policy generator
Generate a Referrer-Policy header with Nginx, Apache, Next.js, and HTML meta snippets for privacy and analytics tradeoffs.
LookupToolChakanPermissions-Policy generator
Generate a Permissions-Policy header for camera, microphone, geolocation, payment, USB, Bluetooth, fullscreen, and clipboard permissions.
LookupToolChakanCache-Control generator
Generate a Cache-Control header with public/private scope, max-age, s-maxage, stale-while-revalidate, stale-if-error, and deploy-ready snippets.
LookupToolChakanSecurity header recipe builder
Generate a deploy-ready baseline set of site-wide security headers, including HSTS, X-Frame-Options, Referrer-Policy, Permissions-Policy, and cross-origin isolation defaults.
LookupToolChakanSecurity headers audit
Audit a live URL for deployed HSTS, CSP, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, COOP, CORP, cache, and exposure signals.
LookupToolChakanBrowser privacy and fingerprint checker
Inspect User-Agent, language, timezone, screen, hardware, storage, Canvas, and WebGL fingerprint signals locally in the browser without uploading the result.
LookupToolChakanUser-Agent 解析查看
查看浏览器 User-Agent 字符串里的浏览器、系统、设备类型、渲染引擎和爬虫特征。
User-Agent浏览器爬虫SSL certificate checker
Use this ssl certificate checker tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanHTTP status checker
Check one public URL for final HTTP status, redirect chain, key response headers, Baidu verification file readiness, release troubleshooting, and sitemap.xml.gz canonical redirect diagnostics.
LookupToolChakanMIME type lookup
Use this mime type lookup tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanPort and protocol lookup
Use this port and protocol lookup tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanPort checker
Use this port checker tool to inspect, convert, or generate a clear result directly in your browser.
LookupToolChakanPEM certificate parser
Parse PEM X.509 certificate text to inspect subject, issuer, validity, SAN, fingerprints, and chain blocks.
LookupToolChakanGNSS and NTRIP
NMEA parsing, checksums, NTRIP source tables, and STR generation.
NMEA-0183 sentence parser
Parse common NMEA-0183 GNSS sentences, checksum status, coordinates, fix quality, speed, and satellite fields.
LookupToolChakanNMEA checksum calculator
Calculate and verify the XOR checksum for NMEA-0183 sentences and generate a standard sentence.
LookupToolChakanNTRIP Source-Table parser
Parse NTRIP Source-Table STR, CAS, and NET lines for mountpoints, RTCM format, coordinates, authentication, and fee fields.
LookupToolChakanNTRIP STR line generator
Generate a copyable NTRIP Source-Table STR line from mountpoint, RTCM, coordinate, authentication, and fee parameters.
LookupToolChakan