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 DNS4 toolsHigh-frequency IP, geolocation, DNS, and WHOIS lookups.
Subnets, addresses and routing6 toolsIPv4/IPv6 subnetting, address conversion, CIDR aggregation, and random addresses.
Web protocols and certificates8 toolsHTTP headers, compression, 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.
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.
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, compression, 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.
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.
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.
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