How fast can Port Scanner Online scan all ports?

Port Scanner Online can scan all 65,535 ports in approximately 20-30 seconds using async socket technology that processes 4,000 ports simultaneously.

What ports are included in the Common Ports preset?

Common Ports includes 20 most frequently used ports: 21 (FTP), 22 (SSH), 23 (Telnet), 25 (SMTP), 53 (DNS), 80 (HTTP), 110 (POP3), 143 (IMAP), 443 (HTTPS), 445 (SMB), 993 (IMAPS), 995 (POP3S), 3306 (MySQL), 3389 (RDP), 5432 (PostgreSQL), 5900 (VNC), 8080 (HTTP Alt), 8443 (HTTPS Alt), 27017 (MongoDB), 6379 (Redis).

Is Port Scanner Online free to use?

Yes, Port Scanner Online is completely free. No registration or installation required. Just enter your target and start scanning.

About Port Scanner Online - Features, Performance & Port Reference

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Port Scanner Online

A powerful, free online tool for network administrators and security professionals to scan TCP/UDP ports and identify open services.

Version 1.5

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Ultra-Fast Async Scanning

Async socket technology with 20x parallel requests. Scan 4,000 ports simultaneously. Full 65535 ports in ~30 seconds!

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Multi-Target Support

Scan multiple domains or IPs simultaneously. Just separate with commas - all targets scan in parallel.

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Smart URL Parsing

Paste full URLs directly - we automatically extract the hostname. No need to manually strip protocols or paths.

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TCP & UDP Protocols

Complete support for both TCP and UDP protocol scanning to detect all open services.

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Service Detection

Automatic identification of 100+ common services including HTTP, SSH, MySQL, Redis, MongoDB, and more.

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Real-Time Results

Watch open ports appear instantly as they're discovered. No waiting for the full scan to complete.

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Share Results

One-click sharing with permanent URLs. Share scan results with your team or save for later reference.

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Flexible Port Ranges

Choose from Common (20), Top 100, Top 1000, All (1-65535), or define custom ranges.

Blazing Fast Performance

Port Scanner Online uses cutting-edge async socket technology with stream_select() for non-blocking parallel connections. Combined with aggressive client-side parallelization, we deliver industry-leading scan speeds.

4,000

Ports Simultaneously

300ms

Timeout Per Port

20x

Parallel Requests

200

Async Sockets/Batch

Estimated Scan Times

Approximate time to complete scans (varies by network conditions and target response):

Scan Preset	Ports	Estimated Time	Use Case
Common Ports	20 ports	~0.3 seconds	Quick security check
Top 100	100 ports	~0.5 seconds	Standard security audit
Top 1000	1,000 ports	~1-2 seconds	Comprehensive scan
All (1-65535)	65,535 ports	~20-30 seconds	Complete port enumeration

How it works: Each request scans 200 ports simultaneously using async sockets. The client sends 20 parallel requests, processing 4,000 ports at once. For 65,535 ports, this means just ~17 batch cycles completed in ~20-30 seconds!

Port Range Options

Choose from predefined port ranges or specify custom ports for scanning:

Common Ports (20 ports)

Most frequently used ports for web, email, database, and remote access services:

                21, 22, 23, 25, 53, 80, 110, 143, 443, 445, 993, 995, 3306, 3389, 5432, 5900, 8080, 8443, 27017, 6379
            

Top 100 Ports

Extended list including common services, Windows RPC, and additional protocols:

                7, 9, 13, 21, 22, 23, 25, 26, 37, 53, 79, 80, 81, 88, 106, 110, 111, 113, 119, 135, 139, 143, 144, 179, 199, 389, 427, 443, 444, 445, 465, 513, 514, 515, 543, 544, 548, 554, 587, 631, 646, 873, 990, 993, 995, 1025, 1026, 1027, 1028, 1029, 1110, 1433, 1720, 1723, 1755, 1900, 2000, 2001, 2049, 2121, 2717, 3000, 3128, 3306, 3389, 3986, 4899, 5000, 5009, 5051, 5060, 5101, 5190, 5357, 5432, 5631, 5666, 5800, 5900, 6000, 6001, 6646, 7070, 8000, 8008, 8009, 8080, 8081, 8443, 8888, 9100, 9999, 10000, 32768, 49152, 49153, 49154, 49155, 49156, 49157
            

Top 1000 Ports

Scans the 1000 most commonly used ports based on nmap frequency data. Covers ~93% of real-world TCP services for thorough analysis.

                1, 3, 4, 6, 7, 9, 13, 17, 19, 20, 21, 22, 23, 24, 25, 26, 30, 32, 33, 37, 42, 43, 49, 53, 70, 79, 80, 81, 82, 83, 84, 85, 88, 89, 90, 99, 100, 106, 109, 110, 111, 113, 119, 125, 135, 139, 143, 144, 146, 161, 163, 179, 199, 211, 212, 222, 254, 255, 256, 259, 264, 280, 301, 306, 311, 340, 366, 389, 406, 407, 416, 417, 425, 427, 443, 444, 445, 458, 464, 465, 481, 497, 500, 512, 513, 514, 515, 524, 541, 543, 544, 545, 548, 554, 555, 563, 587, 593, 616, 617, 625, 631, 636, 646, 648, 666, 667, 668, 683, 687, 691, 700, 705, 711, 714, 720, 722, 726, 749, 765, 777, 783, 787, 800, 801, 808, 843, 873, 880, 888, 898, 900, 901, 902, 903, 911, 912, 981, 987, 990, 992, 993, 995, 999, 1000, 1001, 1002, 1007, 1009, 1010, 1011, 1021, 1022, 1023, 1024, 1025, 1026, 1027, 1028, 1029, 1030, 1031, 1032, 1033, 1034, 1035, 1036, 1037, 1038, 1039, 1040, 1041, 1042, 1043, 1044, 1045, 1046, 1047, 1048, 1049, 1050, 1051, 1052, 1053, 1054, 1055, 1056, 1057, 1058, 1059, 1060, 1061, 1062, 1063, 1064, 1065, 1066, 1067, 1068, 1069, 1070, 1071, 1072, 1073, 1074, 1075, 1076, 1077, 1078, 1079, 1080, 1081, 1082, 1083, 1084, 1085, 1086, 1087, 1088, 1089, 1090, 1091, 1092, 1093, 1094, 1095, 1096, 1097, 1098, 1099, 1100, 1102, 1104, 1105, 1106, 1107, 1108, 1110, 1111, 1112, 1113, 1114, 1117, 1119, 1121, 1122, 1123, 1124, 1126, 1130, 1131, 1132, 1137, 1138, 1141, 1145, 1147, 1148, 1149, 1151, 1152, 1154, 1163, 1164, 1165, 1166, 1169, 1174, 1175, 1183, 1185, 1186, 1187, 1192, 1198, 1199, 1201, 1213, 1216, 1217, 1218, 1233, 1234, 1236, 1244, 1247, 1248, 1259, 1271, 1272, 1277, 1287, 1296, 1300, 1301, 1309, 1310, 1311, 1322, 1328, 1334, 1352, 1417, 1433, 1434, 1443, 1455, 1461, 1494, 1500, 1501, 1503, 1521, 1524, 1533, 1556, 1580, 1583, 1594, 1600, 1641, 1658, 1666, 1687, 1688, 1700, 1717, 1718, 1719, 1720, 1721, 1723, 1755, 1761, 1782, 1783, 1801, 1805, 1812, 1839, 1840, 1862, 1863, 1864, 1875, 1900, 1914, 1935, 1947, 1971, 1972, 1974, 1984, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2013, 2020, 2021, 2022, 2030, 2033, 2034, 2035, 2038, 2040, 2041, 2042, 2043, 2045, 2046, 2047, 2048, 2049, 2065, 2068, 2099, 2100, 2103, 2105, 2106, 2107, 2111, 2119, 2121, 2126, 2135, 2144, 2160, 2161, 2170, 2179, 2190, 2191, 2196, 2200, 2222, 2251, 2260, 2288, 2301, 2323, 2366, 2381, 2382, 2383, 2393, 2394, 2399, 2401, 2492, 2500, 2522, 2525, 2557, 2601, 2602, 2604, 2605, 2607, 2608, 2638, 2701, 2702, 2710, 2717, 2718, 2725, 2800, 2809, 2811, 2869, 2875, 2909, 2910, 2920, 2967, 2968, 2998, 3000, 3001, 3003, 3005, 3006, 3007, 3011, 3013, 3017, 3030, 3031, 3052, 3071, 3077, 3128, 3168, 3211, 3221, 3260, 3261, 3268, 3269, 3283, 3300, 3301, 3306, 3322, 3323, 3324, 3325, 3333, 3351, 3367, 3369, 3370, 3371, 3372, 3389, 3390, 3404, 3476, 3493, 3517, 3527, 3546, 3551, 3580, 3659, 3689, 3690, 3703, 3737, 3766, 3784, 3800, 3801, 3809, 3814, 3826, 3827, 3828, 3851, 3869, 3871, 3878, 3880, 3889, 3905, 3914, 3918, 3920, 3945, 3971, 3986, 3995, 3998, 4000, 4001, 4002, 4003, 4004, 4005, 4006, 4045, 4111, 4125, 4126, 4129, 4224, 4242, 4279, 4321, 4343, 4443, 4444, 4445, 4446, 4449, 4550, 4567, 4662, 4848, 4899, 4900, 4998, 5000, 5001, 5002, 5003, 5004, 5009, 5030, 5033, 5050, 5051, 5054, 5060, 5061, 5080, 5087, 5100, 5101, 5102, 5120, 5190, 5200, 5214, 5221, 5222, 5225, 5226, 5269, 5280, 5298, 5357, 5405, 5414, 5431, 5432, 5440, 5500, 5510, 5544, 5550, 5555, 5560, 5566, 5631, 5633, 5666, 5678, 5679, 5718, 5730, 5800, 5801, 5802, 5810, 5811, 5815, 5822, 5825, 5850, 5859, 5862, 5877, 5900, 5901, 5902, 5903, 5904, 5906, 5907, 5910, 5911, 5915, 5922, 5925, 5950, 5952, 5959, 5960, 5961, 5962, 5963, 5987, 5988, 5989, 5998, 5999, 6000, 6001, 6002, 6003, 6004, 6005, 6006, 6007, 6009, 6025, 6059, 6100, 6101, 6106, 6112, 6123, 6129, 6156, 6346, 6389, 6502, 6510, 6543, 6547, 6565, 6566, 6567, 6580, 6646, 6666, 6667, 6668, 6669, 6689, 6692, 6699, 6779, 6788, 6789, 6792, 6839, 6881, 6901, 6969, 7000, 7001, 7002, 7004, 7007, 7019, 7025, 7070, 7100, 7103, 7106, 7200, 7201, 7402, 7435, 7443, 7496, 7512, 7625, 7627, 7676, 7741, 7777, 7778, 7800, 7911, 7920, 7921, 7937, 7938, 7999, 8000, 8001, 8002, 8007, 8008, 8009, 8010, 8011, 8021, 8022, 8031, 8042, 8045, 8080, 8081, 8082, 8083, 8084, 8085, 8086, 8087, 8088, 8089, 8090, 8093, 8099, 8100, 8180, 8181, 8192, 8193, 8194, 8200, 8222, 8254, 8290, 8291, 8292, 8300, 8333, 8383, 8400, 8402, 8443, 8500, 8600, 8649, 8651, 8652, 8654, 8701, 8800, 8873, 8888, 8899, 8994, 9000, 9001, 9002, 9003, 9009, 9010, 9011, 9040, 9050, 9071, 9080, 9081, 9090, 9091, 9099, 9100, 9101, 9102, 9103, 9110, 9111, 9200, 9207, 9220, 9290, 9415, 9418, 9485, 9500, 9502, 9503, 9535, 9575, 9593, 9594, 9595, 9618, 9666, 9876, 9877, 9878, 9898, 9900, 9917, 9929, 9943, 9944, 9968, 9998, 9999, 10000, 10001, 10002, 10003, 10004, 10009, 10010, 10012, 10024, 10025, 10082, 10180, 10215, 10243, 10566, 10616, 10617, 10621, 10626, 10628, 10629, 10778, 11110, 11111, 11967, 12000, 12174, 12265, 12345, 13456, 13722, 13782, 13783, 14000, 14238, 14441, 14442, 15000, 15002, 15003, 15004, 15660, 15742, 16000, 16001, 16012, 16016, 16018, 16080, 16113, 16992, 16993, 17877, 17988, 18040, 18101, 18988, 19101, 19283, 19315, 19350, 19780, 19801, 19842, 20000, 20005, 20031, 20221, 20222, 20828, 21571, 22939, 23502, 24444, 24800, 25734, 25735, 26214, 27000, 27352, 27353, 27355, 27356, 27715, 28201, 30000, 30718, 30951, 31038, 31337, 32768, 32769, 32770, 32771, 32772, 32773, 32774, 32775, 32776, 32777, 32778, 32779, 32780, 32781, 32782, 32783, 32784, 32785, 33354, 33899, 34571, 34572, 34573, 35500, 38292, 40193, 40911, 41511, 42510, 44176, 44442, 44443, 44501, 45100, 48080, 49152, 49153, 49154, 49155, 49156, 49157, 49158, 49159, 49160, 49161, 49163, 49165, 49167, 49175, 49176, 49400, 49999, 50000, 50001, 50002, 50003, 50006, 50300, 50389, 50500, 50636, 50800, 51103, 51493, 52673, 52822, 52848, 52869, 54045, 54328, 55055, 55056, 55555, 55600, 56737, 56738, 57294, 57797, 58080, 60020, 60443, 61532, 61900, 62078, 63331, 64623, 64680, 65000, 65129, 65389
            

All (1-65535)

Complete full port scan. Scans all 65,535 TCP/UDP ports for maximum coverage. Recommended for thorough security audits.

Custom Range

Specify your own ports using:

Comma-separated: 80, 443, 8080, 8443
Range: 1-1024
Combined: 22, 80, 443, 8000-8100

Common Ports Reference

Port inclusion by scan preset:

Port	Service	Top 20	Top 100	Top 1000	Description
7	Echo	-	O	O	Echo Protocol
9	Discard	-	O	O	Discard Protocol
13	Daytime	-	O	O	Daytime Protocol
20	FTP Data	-	-	O	FTP Data Transfer
21	FTP	O	O	O	File Transfer Protocol
22	SSH	O	O	O	Secure Shell
23	Telnet	O	O	O	Unencrypted remote access
25	SMTP	O	O	O	Email sending
53	DNS	O	O	O	Domain Name System
67	DHCP	-	-	-	DHCP Server
69	TFTP	-	-	-	Trivial File Transfer
80	HTTP	O	O	O	Web server
88	Kerberos	-	O	O	Kerberos Authentication
110	POP3	O	O	O	Email receiving
111	RPC	-	O	O	Remote Procedure Call
119	NNTP	-	O	O	Usenet News
123	NTP	-	-	-	Network Time Protocol
135	MS RPC	-	O	O	Microsoft RPC
139	NetBIOS	-	O	O	NetBIOS Session
143	IMAP	O	O	O	Email receiving
161	SNMP	-	-	O	Network Management
179	BGP	-	O	O	Border Gateway Protocol
389	LDAP	-	O	O	Directory services
443	HTTPS	O	O	O	Secure web server
445	SMB	O	O	O	Windows file sharing
465	SMTPS	-	O	O	Secure SMTP
500	IKE	-	-	O	IPSec VPN
514	Syslog	-	O	O	System Logging
515	LPD	-	O	O	Line Printer Daemon
548	AFP	-	O	O	Apple Filing Protocol
554	RTSP	-	O	O	Streaming Media
587	Submission	-	O	O	Email submission
636	LDAPS	-	-	O	Secure LDAP
873	rsync	-	O	O	File Synchronization
902	VMware	-	-	O	VMware Server
990	FTPS	-	O	O	Secure FTP
993	IMAPS	O	O	O	Secure IMAP
995	POP3S	O	O	O	Secure POP3
1080	SOCKS	-	-	O	SOCKS Proxy
1194	OpenVPN	-	-	-	OpenVPN
1433	MSSQL	-	O	O	Microsoft SQL Server
1434	MSSQL Browser	-	-	O	SQL Server Browser
1521	Oracle	-	-	O	Oracle Database
1723	PPTP	-	O	O	PPTP VPN
1883	MQTT	-	-	-	IoT Messaging
2049	NFS	-	O	O	Network File System
2181	ZooKeeper	-	-	-	Apache ZooKeeper
2375	Docker	-	-	-	Docker API (unencrypted)
2376	Docker TLS	-	-	-	Docker API (TLS)
3000	Node.js	-	O	O	Node.js / Grafana
3128	Squid	-	O	O	Squid Proxy
3306	MySQL	O	O	O	MySQL database
3389	RDP	O	O	O	Remote Desktop
4443	Pharos	-	-	O	HTTPS Alt
5000	Flask	-	O	O	Flask / Docker Registry
5222	XMPP	-	-	O	Jabber/XMPP Client
5432	PostgreSQL	O	O	O	PostgreSQL database
5601	Kibana	-	-	-	Kibana Dashboard
5672	RabbitMQ	-	-	-	RabbitMQ AMQP
5900	VNC	O	O	O	Virtual Network Computing
5984	CouchDB	-	-	-	CouchDB Database
6379	Redis	O	-	-	Redis (2009~)
6443	K8s API	-	-	-	Kubernetes API Server
6666	IRC	-	-	O	IRC Server
7001	WebLogic	-	-	O	Oracle WebLogic
8000	HTTP Alt	-	O	O	Django / HTTP Alt
8080	HTTP Proxy	O	O	O	Tomcat / HTTP Proxy
8443	HTTPS Alt	O	O	O	Alternative HTTPS
8888	HTTP Alt	-	O	O	Jupyter / HTTP Alt
9000	SonarQube	-	-	O	SonarQube / PHP-FPM
9090	Prometheus	-	-	O	Prometheus Monitoring
9092	Kafka	-	-	-	Apache Kafka
9200	Elasticsearch	-	-	O	Elasticsearch HTTP
9418	Git	-	-	O	Git Protocol
10050	Zabbix Agent	-	-	-	Zabbix Monitoring
11211	Memcached	-	-	-	Memcached Cache
15672	RabbitMQ UI	-	-	-	RabbitMQ Management
27017	MongoDB	O	-	-	MongoDB (2009~)
32768	Dynamic	-	O	O	Linux Ephemeral Start
49152	Dynamic	-	O	O	IANA Dynamic Start
50000	Jenkins	-	-	O	Jenkins Agent

Note: Top 1000 is based on nmap's 2008 frequency data. Modern services like Redis (2009), MongoDB (2009), Kafka, Docker, and Kubernetes were released after this data was collected, so they are only included in our "Top 20" preset for practical scanning.

Legal & Ethical Use

Port scanning is a legitimate network administration and security testing technique. However, scanning systems without authorization may violate laws and regulations in your jurisdiction.

Important Guidelines

- Only scan systems you own or have explicit permission to test.
- Obtain written authorization before scanning third-party systems.
- Be aware of your local laws regarding network scanning.
- Use this tool responsibly for security testing and network administration only.

We'd Love to Hear from You!

Have a feature request, suggestion, or feedback?
We're always looking to improve. Don't hesitate to reach out!

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