diff --git a/lib/types.d.ts b/lib/types.d.ts
new file mode 100644
index 0000000..d15af5f
--- /dev/null
+++ b/lib/types.d.ts
@@ -0,0 +1,152 @@
+/// <reference types="node" />
+interface MessageHeader {
+    /**
+     *  A 16 bit identifier assigned by the program that
+     *  generates any kind of query.  This identifier is copied
+     *  the corresponding reply and can be used by the requester
+     *  to match up replies to outstanding queries.
+     */
+    ID: number;
+    /**
+     * Defines if query or response
+     */
+    QR: 0 | 1;
+    /**
+     * 4 Bit code, that defines type of query.
+     * 0 Standard query
+     * 1 Inverse query
+     * 2 Server status request
+     * 3-15 reserved for future use
+     */
+    OPCODE: number;
+    /**
+     * Authorative Answer - only valid in responses and
+     * specifies that the responding name server is an
+     * authority for the domain name in question section
+     */
+    AA: 0 | 1;
+    /**
+     * Truncation - specifies that his message was truncated doe to
+     * length grater than permitted on the transaction channel
+     *
+     * WARNING: NOT IMPLEMENTED IN THIS APPLICATION
+     */
+    TC: 0 | 1;
+    /**
+     * Recursion Desired - set in query and copied to response
+     * if is set, directs name server to pursue the query recursively
+     *
+     * WARNING: NOT IMPLEMENTED IN THIS APPLICATION
+     */
+    RD: 0 | 1;
+    /**
+     * Recursion Available - will be cleared in response to
+     * show the client that recursion is not available
+     */
+    RA: 0 | 1;
+    /**
+     * Reserved for future usage, must be 0 in all queries
+     */
+    Z: 0;
+    AD: 0 | 1;
+    CD: 0 | 1;
+    /**
+     * Response Code - 4 bit field is part of response
+     *
+     * 0 No error condition
+     * 1 Format error - unable to interpret query
+     * 2 Server failure - internal problem
+     * 3 Name error - Only for authorative name server, domain name of query does not exist
+     * 4 Not implemented - Request not supported
+     * 5 Refused - Nameserver refuses request
+     * 6-15 Reserved for future usage
+     */
+    RCODE: 0 | 1 | 2 | 3 | 4 | 5;
+    /**
+     * Number of entries in question section
+     * uint16
+     */
+    QDCOUNT: number;
+    /**
+     * Number of entries in answer section
+     * uint16
+     */
+    ANCOUNT: number;
+    /**
+     * Number of resource records in authority records section
+     * uint16
+     */
+    NSCOUNT: number;
+    /**
+     * Number of resource records in additional records section
+     * uint16
+     */
+    ARCOUNT: number;
+}
+interface MessageQuestion {
+    /**
+     * Domain name represented as sequence of labels
+     * Each label consists of a length octed followed
+     * by that number of octeds
+     */
+    QNAME: string;
+    /**
+     * Two octed code wich specifies the type of the query.
+     */
+    QTYPE: number;
+    /**
+     * Two octed code that specifies the class of the Query
+     * IS for internet
+     * WARNING: ONLY IN IS SUPPORTED BY THIS APPLICATION
+     */
+    QCLASS: number;
+}
+interface MessageRecourceRecord {
+    /**
+     * Domain name to wich resource record pertains
+     */
+    NAME: string;
+    /**
+     * Two octets containing TT type code.
+     * Specifies meaning of data in RDATA field
+     *
+     * uint16
+     */
+    TYPE: number;
+    /**
+     * Two octets specifying class of RDATA field
+     *
+     * uint16
+     */
+    CLASS: number;
+    /**
+     * Specifies Time Interval (in seconds) that the record
+     * may be cached before discarded.
+     * Zero values are not cached
+     *
+     * uint32
+     */
+    TTL: number;
+    /**
+     * Length of RDATA field
+     *
+     * uint16
+     */
+    RDLENGTH: number;
+    /**
+     * a variable length string of ectets taht describes
+     * the resource. The format is defined by TYPE and CLASS
+     * field.
+     *
+     * If TYPE is A and CLASS is IN, RDATA is a 4 octet
+     * ARPA internet address.
+     */
+    RDATA: Buffer;
+}
+interface Message {
+    header: MessageHeader;
+    questions: MessageQuestion[];
+    answers: MessageRecourceRecord[];
+    authorities: MessageRecourceRecord[];
+    additionals: MessageRecourceRecord[];
+}
diff --git a/lib/types.js b/lib/types.js
new file mode 100644
index 0000000..5b2306a
--- /dev/null
+++ b/lib/types.js
@@ -0,0 +1 @@
+//# sourceMappingURL=types.js.map
\ No newline at end of file
diff --git a/lib/types.js.map b/lib/types.js.map
new file mode 100644
index 0000000..c768b79
--- /dev/null
+++ b/lib/types.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"types.js","sourceRoot":"","sources":["../src/types.ts"],"names":[],"mappings":""}
\ No newline at end of file
diff --git a/package.json b/package.json
index a83a6f8..cea6cb8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
    "name": "nodename-core",
-   "version": "0.1.0",
+   "version": "0.1.1",
    "main": "lib/listener.js",
    "types": "lib/listener.d.ts",
    "author": "Fabian Stamm <dev@fabianstamm.de>",
diff --git a/src/types.d.ts b/src/types.ts
similarity index 100%
rename from src/types.d.ts
rename to src/types.ts