diff --git a/src/cmd/compile/internal/types2/decl.go b/src/cmd/compile/internal/types2/decl.go
index 1544ee11f4b..0ac0f6196af 100644
--- a/src/cmd/compile/internal/types2/decl.go
+++ b/src/cmd/compile/internal/types2/decl.go
@@ -405,7 +405,7 @@ func (check *Checker) constDecl(obj *Const, typ, init syntax.Expr, inherited boo
 			// expression and not the current constant declaration. Use
 			// the constant identifier position for any errors during
 			// init expression evaluation since that is all we have
-			// (see issues #42991, #42992).
+			// (see issues go.dev/issue/42991, go.dev/issue/42992).
 			check.errpos = obj.pos
 		}
 		check.expr(&x, init)
diff --git a/src/cmd/compile/internal/types2/expr.go b/src/cmd/compile/internal/types2/expr.go
index 472e30a0698..0be2a4533ca 100644
--- a/src/cmd/compile/internal/types2/expr.go
+++ b/src/cmd/compile/internal/types2/expr.go
@@ -960,7 +960,7 @@ func (check *Checker) shift(x, y *operand, e syntax.Expr, op syntax.Operator) {
 
 		if isUntyped(y.typ) {
 			// Caution: Check for representability here, rather than in the switch
-			// below, because isInteger includes untyped integers (was bug #43697).
+			// below, because isInteger includes untyped integers (was bug go.dev/issue/43697).
 			check.representable(y, Typ[Uint])
 			if y.mode == invalid {
 				x.mode = invalid
@@ -978,7 +978,7 @@ func (check *Checker) shift(x, y *operand, e syntax.Expr, op syntax.Operator) {
 			}
 		case isUntyped(y.typ):
 			// This is incorrect, but preserves pre-existing behavior.
-			// See also bug #47410.
+			// See also go.dev/issue/47410.
 			check.convertUntyped(y, Typ[Uint])
 			if y.mode == invalid {
 				x.mode = invalid
@@ -1355,11 +1355,11 @@ func (check *Checker) exprInternal(x *operand, e syntax.Expr, hint Type) exprKin
 				// init expression/func declaration which contains
 				// them: use existing package-level declaration info.
 				decl := check.decl // capture for use in closure below
-				iota := check.iota // capture for use in closure below (#22345)
+				iota := check.iota // capture for use in closure below (go.dev/issue/22345)
 				// Don't type-check right away because the function may
 				// be part of a type definition to which the function
 				// body refers. Instead, type-check as soon as possible,
-				// but before the enclosing scope contents changes (#22992).
+				// but before the enclosing scope contents changes (go.dev/issue/22992).
 				check.later(func() {
 					check.funcBody(decl, "<function literal>", sig, e.Body, iota)
 				}).describef(e, "func literal")
diff --git a/src/cmd/compile/internal/types2/infer.go b/src/cmd/compile/internal/types2/infer.go
index b9defb3e81a..24213134f5f 100644
--- a/src/cmd/compile/internal/types2/infer.go
+++ b/src/cmd/compile/internal/types2/infer.go
@@ -505,7 +505,7 @@ func (check *Checker) inferB(tparams []*TypeParam, targs []Type) (types []Type,
 					// For instance, given [P T1|T2, ...] where the type argument for P is (named
 					// type) T1, and T1 and T2 have the same built-in (named) type T0 as underlying
 					// type, the core type will be the named type T0, which doesn't match T1.
-					// Yet the instantiation of P with T1 is clearly valid (see #53650).
+					// Yet the instantiation of P with T1 is clearly valid (see go.dev/issue/53650).
 					// Reporting an error if unification fails would be incorrect in this case.
 					// On the other hand, it is safe to ignore failing unification during constraint
 					// type inference because if the failure is true, an error will be reported when
diff --git a/src/cmd/compile/internal/types2/lookup.go b/src/cmd/compile/internal/types2/lookup.go
index 96d87fe66a7..0c3b96ff2d2 100644
--- a/src/cmd/compile/internal/types2/lookup.go
+++ b/src/cmd/compile/internal/types2/lookup.go
@@ -399,7 +399,8 @@ func (check *Checker) missingMethodCause(V, T Type, m, alt *Func) string {
 
 		altS, mS := check.funcString(alt, false), check.funcString(m, false)
 		if altS == mS {
-			// Would tell the user that Foo isn't a Foo, add package information to disambiguate.  See #54258.
+			// Would tell the user that Foo isn't a Foo, add package information to disambiguate.
+			// See go.dev/issue/54258.
 			altS, mS = check.funcString(alt, true), check.funcString(m, true)
 		}
 
diff --git a/src/cmd/compile/internal/types2/signature.go b/src/cmd/compile/internal/types2/signature.go
index 61c6721f806..8e0dfe2881a 100644
--- a/src/cmd/compile/internal/types2/signature.go
+++ b/src/cmd/compile/internal/types2/signature.go
@@ -154,7 +154,7 @@ func (check *Checker) funcType(sig *Signature, recvPar *syntax.Field, tparams []
 			} else if len(tparams) < len(recvTParams) {
 				// Reporting an error here is a stop-gap measure to avoid crashes in the
 				// compiler when a type parameter/argument cannot be inferred later. It
-				// may lead to follow-on errors (see issues #51339, #51343).
+				// may lead to follow-on errors (see issues go.dev/issue/51339, go.dev/issue/51343).
 				// TODO(gri) find a better solution
 				got := measure(len(tparams), "type parameter")
 				check.errorf(recvPar, BadRecv, "got %s, but receiver base type declares %d", got, len(recvTParams))
@@ -204,7 +204,7 @@ func (check *Checker) funcType(sig *Signature, recvPar *syntax.Field, tparams []
 		sig.recv = recv
 
 		// Delay validation of receiver type as it may cause premature expansion
-		// of types the receiver type is dependent on (see issues #51232, #51233).
+		// of types the receiver type is dependent on (see issues go.dev/issue/51232, go.dev/issue/51233).
 		check.later(func() {
 			// spec: "The receiver type must be of the form T or *T where T is a type name."
 			rtyp, _ := deref(recv.typ)
diff --git a/src/cmd/compile/internal/types2/stdlib_test.go b/src/cmd/compile/internal/types2/stdlib_test.go
index 28df06c9896..c5903a12d38 100644
--- a/src/cmd/compile/internal/types2/stdlib_test.go
+++ b/src/cmd/compile/internal/types2/stdlib_test.go
@@ -222,7 +222,7 @@ func TestStdKen(t *testing.T) {
 var excluded = map[string]bool{
 	"builtin": true,
 
-	// See #46027: some imports are missing for this submodule.
+	// go.dev/issue/46027: some imports are missing for this submodule.
 	"crypto/internal/edwards25519/field/_asm": true,
 	"crypto/internal/bigmod/_asm":             true,
 }
diff --git a/src/cmd/compile/internal/types2/stmt.go b/src/cmd/compile/internal/types2/stmt.go
index 1ddaef39abf..f87ef11b988 100644
--- a/src/cmd/compile/internal/types2/stmt.go
+++ b/src/cmd/compile/internal/types2/stmt.go
@@ -796,7 +796,7 @@ func (check *Checker) typeSwitchStmt(inner stmtContext, s *syntax.SwitchStmt, gu
 			}
 			obj := NewVar(lhs.Pos(), check.pkg, lhs.Value, T)
 			// TODO(mdempsky): Just use clause.Colon? Why did I even suggest
-			// "at the end of the TypeSwitchCase" in #16794 instead?
+			// "at the end of the TypeSwitchCase" in go.dev/issue/16794 instead?
 			scopePos := clause.Pos() // for default clause (len(List) == 0)
 			if n := len(cases); n > 0 {
 				scopePos = syntax.EndPos(cases[n-1])
diff --git a/src/cmd/compile/internal/types2/typexpr.go b/src/cmd/compile/internal/types2/typexpr.go
index cddc7f070bc..9fe9c17803a 100644
--- a/src/cmd/compile/internal/types2/typexpr.go
+++ b/src/cmd/compile/internal/types2/typexpr.go
@@ -325,7 +325,7 @@ func (check *Checker) typInternal(e0 syntax.Expr, def *Named) (T Type) {
 			// If typ.base is invalid, it's unlikely that *base is particularly
 			// useful - even a valid dereferenciation will lead to an invalid
 			// type again, and in some cases we get unexpected follow-on errors
-			// (e.g., see #49005). Return an invalid type instead.
+			// (e.g., go.dev/issue/49005). Return an invalid type instead.
 			if typ.base == Typ[Invalid] {
 				return Typ[Invalid]
 			}
diff --git a/src/cmd/compile/internal/types2/unify.go b/src/cmd/compile/internal/types2/unify.go
index bdafdf9c6a9..aff8a147e42 100644
--- a/src/cmd/compile/internal/types2/unify.go
+++ b/src/cmd/compile/internal/types2/unify.go
@@ -14,7 +14,7 @@ import (
 
 const (
 	// Upper limit for recursion depth. Used to catch infinite recursions
-	// due to implementation issues (e.g., see issues #48619, #48656).
+	// due to implementation issues (e.g., see issues go.dev/issue/48619, go.dev/issue/48656).
 	unificationDepthLimit = 50
 
 	// Whether to panic when unificationDepthLimit is reached.
diff --git a/src/go/types/builtins.go b/src/go/types/builtins.go
index 938e85ed689..0783f921eb4 100644
--- a/src/go/types/builtins.go
+++ b/src/go/types/builtins.go
@@ -946,7 +946,7 @@ func (check *Checker) applyTypeFunc(f func(Type) Type, x *operand, id builtinId)
 
 		// We can type-check this fine but we're introducing a synthetic
 		// type parameter for the result. It's not clear what the API
-		// implications are here. Report an error for 1.18 (see #50912),
+		// implications are here. Report an error for 1.18 (see go.dev/issue/50912),
 		// but continue type-checking.
 		var code Code
 		switch id {
diff --git a/src/go/types/decl.go b/src/go/types/decl.go
index 7d9cc1757b1..393d8f34e23 100644
--- a/src/go/types/decl.go
+++ b/src/go/types/decl.go
@@ -474,7 +474,7 @@ func (check *Checker) constDecl(obj *Const, typ, init ast.Expr, inherited bool)
 			// expression and not the current constant declaration. Use
 			// the constant identifier position for any errors during
 			// init expression evaluation since that is all we have
-			// (see issues #42991, #42992).
+			// (see issues go.dev/issue/42991, go.dev/issue/42992).
 			check.errpos = atPos(obj.pos)
 		}
 		check.expr(&x, init)
diff --git a/src/go/types/expr.go b/src/go/types/expr.go
index f09a29b1260..d67bc8b7564 100644
--- a/src/go/types/expr.go
+++ b/src/go/types/expr.go
@@ -695,7 +695,7 @@ func (check *Checker) implicitTypeAndValue(x *operand, target Type) (Type, const
 			if !hasNil(target) {
 				return nil, nil, InvalidUntypedConversion
 			}
-			// Preserve the type of nil as UntypedNil: see #13061.
+			// Preserve the type of nil as UntypedNil: see go.dev/issue/13061.
 			return Typ[UntypedNil], nil, 0
 		default:
 			return nil, nil, InvalidUntypedConversion
@@ -711,7 +711,7 @@ func (check *Checker) implicitTypeAndValue(x *operand, target Type) (Type, const
 			}) {
 				return nil, nil, InvalidUntypedConversion
 			}
-			// keep nil untyped (was bug #39755)
+			// keep nil untyped (was bug go.dev/issue/39755)
 			if x.isNil() {
 				return Typ[UntypedNil], nil, 0
 			}
@@ -938,7 +938,7 @@ func (check *Checker) shift(x, y *operand, e ast.Expr, op token.Token) {
 
 		if isUntyped(y.typ) {
 			// Caution: Check for representability here, rather than in the switch
-			// below, because isInteger includes untyped integers (was bug #43697).
+			// below, because isInteger includes untyped integers (was bug go.dev/issue/43697).
 			check.representable(y, Typ[Uint])
 			if y.mode == invalid {
 				x.mode = invalid
@@ -956,7 +956,7 @@ func (check *Checker) shift(x, y *operand, e ast.Expr, op token.Token) {
 			}
 		case isUntyped(y.typ):
 			// This is incorrect, but preserves pre-existing behavior.
-			// See also bug #47410.
+			// See also go.dev/issue/47410.
 			check.convertUntyped(y, Typ[Uint])
 			if y.mode == invalid {
 				x.mode = invalid
@@ -1333,11 +1333,11 @@ func (check *Checker) exprInternal(x *operand, e ast.Expr, hint Type) exprKind {
 				// init expression/func declaration which contains
 				// them: use existing package-level declaration info.
 				decl := check.decl // capture for use in closure below
-				iota := check.iota // capture for use in closure below (#22345)
+				iota := check.iota // capture for use in closure below (go.dev/issue/22345)
 				// Don't type-check right away because the function may
 				// be part of a type definition to which the function
 				// body refers. Instead, type-check as soon as possible,
-				// but before the enclosing scope contents changes (#22992).
+				// but before the enclosing scope contents changes (go.dev/issue/22992).
 				check.later(func() {
 					check.funcBody(decl, "<function literal>", sig, e.Body, iota)
 				}).describef(e, "func literal")
diff --git a/src/go/types/infer.go b/src/go/types/infer.go
index 70d256bed7e..9589b0749af 100644
--- a/src/go/types/infer.go
+++ b/src/go/types/infer.go
@@ -507,7 +507,7 @@ func (check *Checker) inferB(tparams []*TypeParam, targs []Type) (types []Type,
 					// For instance, given [P T1|T2, ...] where the type argument for P is (named
 					// type) T1, and T1 and T2 have the same built-in (named) type T0 as underlying
 					// type, the core type will be the named type T0, which doesn't match T1.
-					// Yet the instantiation of P with T1 is clearly valid (see #53650).
+					// Yet the instantiation of P with T1 is clearly valid (see go.dev/issue/53650).
 					// Reporting an error if unification fails would be incorrect in this case.
 					// On the other hand, it is safe to ignore failing unification during constraint
 					// type inference because if the failure is true, an error will be reported when
diff --git a/src/go/types/lookup.go b/src/go/types/lookup.go
index 2d6501b7390..331c308656e 100644
--- a/src/go/types/lookup.go
+++ b/src/go/types/lookup.go
@@ -401,7 +401,8 @@ func (check *Checker) missingMethodCause(V, T Type, m, alt *Func) string {
 
 		altS, mS := check.funcString(alt, false), check.funcString(m, false)
 		if altS == mS {
-			// Would tell the user that Foo isn't a Foo, add package information to disambiguate.  See #54258.
+			// Would tell the user that Foo isn't a Foo, add package information to disambiguate.
+			// See go.dev/issue/54258.
 			altS, mS = check.funcString(alt, true), check.funcString(m, true)
 		}
 
diff --git a/src/go/types/signature.go b/src/go/types/signature.go
index 5986ec83a7c..8285f1b3d4f 100644
--- a/src/go/types/signature.go
+++ b/src/go/types/signature.go
@@ -158,7 +158,7 @@ func (check *Checker) funcType(sig *Signature, recvPar *ast.FieldList, ftyp *ast
 			} else if len(tparams) < len(recvTParams) {
 				// Reporting an error here is a stop-gap measure to avoid crashes in the
 				// compiler when a type parameter/argument cannot be inferred later. It
-				// may lead to follow-on errors (see issues #51339, #51343).
+				// may lead to follow-on errors (see issues go.dev/issue/51339, go.dev/issue/51343).
 				// TODO(gri) find a better solution
 				got := measure(len(tparams), "type parameter")
 				check.errorf(recvPar, BadRecv, "got %s, but receiver base type declares %d", got, len(recvTParams))
@@ -207,7 +207,7 @@ func (check *Checker) funcType(sig *Signature, recvPar *ast.FieldList, ftyp *ast
 		sig.recv = recv
 
 		// Delay validation of receiver type as it may cause premature expansion
-		// of types the receiver type is dependent on (see issues #51232, #51233).
+		// of types the receiver type is dependent on (see issues go.dev/issue/51232, go.dev/issue/51233).
 		check.later(func() {
 			// spec: "The receiver type must be of the form T or *T where T is a type name."
 			rtyp, _ := deref(recv.typ)
diff --git a/src/go/types/stdlib_test.go b/src/go/types/stdlib_test.go
index afc413c914b..f2290c57259 100644
--- a/src/go/types/stdlib_test.go
+++ b/src/go/types/stdlib_test.go
@@ -192,7 +192,7 @@ func TestStdFixed(t *testing.T) {
 		"issue22200b.go", // go/types does not have constraints on stack size
 		"issue25507.go",  // go/types does not have constraints on stack size
 		"issue20780.go",  // go/types does not have constraints on stack size
-		"bug251.go",      // go.dev/issue/34333 which was exposed with fix for #34151
+		"bug251.go",      // go.dev/issue/34333 which was exposed with fix for go.dev/issue/34151
 		"issue42058a.go", // go/types does not have constraints on channel element size
 		"issue42058b.go", // go/types does not have constraints on channel element size
 		"issue48097.go",  // go/types doesn't check validity of //go:xxx directives, and non-init bodyless function
@@ -224,7 +224,7 @@ func TestStdKen(t *testing.T) {
 var excluded = map[string]bool{
 	"builtin": true,
 
-	// See #46027: some imports are missing for this submodule.
+	// See go.dev/issue/46027: some imports are missing for this submodule.
 	"crypto/internal/edwards25519/field/_asm": true,
 	"crypto/internal/bigmod/_asm":             true,
 }
diff --git a/src/go/types/testdata/local/shifts.go b/src/go/types/testdata/local/shifts.go
index a9b50035d7e..790daa35297 100644
--- a/src/go/types/testdata/local/shifts.go
+++ b/src/go/types/testdata/local/shifts.go
@@ -7,7 +7,7 @@
 // correctly with types2 at the moment. See go.dev/issue/52080.
 // Make sure we keep testing them with go/types.
 //
-// TODO(gri) Once #52080 is fixed, this file can be
+// TODO(gri) Once go.dev/issue/52080 is fixed, this file can be
 //           deleted in favor of the re-enabled tests
 //           in the shared file.
 
diff --git a/src/go/types/unify.go b/src/go/types/unify.go
index 03c4739814f..8265aa82b42 100644
--- a/src/go/types/unify.go
+++ b/src/go/types/unify.go
@@ -16,7 +16,7 @@ import (
 
 const (
 	// Upper limit for recursion depth. Used to catch infinite recursions
-	// due to implementation issues (e.g., see issues #48619, #48656).
+	// due to implementation issues (e.g., see issues go.dev/issue/48619, go.dev/issue/48656).
 	unificationDepthLimit = 50
 
 	// Whether to panic when unificationDepthLimit is reached.