diff --git a/go.mod b/go.mod
index b67b904..e3df8bf 100644
--- a/go.mod
+++ b/go.mod
@@ -3,28 +3,13 @@ module git.loafle.net/odds_crawler/odds-crawler-backend
 go 1.12
 
 require (
-	cloud.google.com/go v0.37.4 // indirect
-	git.loafle.net/chrome_devtools_protocol/protocol-go v0.0.0-20190420120325-5b4a2c84e461
-	git.loafle.net/odds_crawler/odds-crawler-proto v0.0.0-20190509143834-a3001ddaef17
+	git.loafle.net/chrome_devtools_protocol/cdp-go v0.0.0-20190511061014-f0ba3e38d8c7
+	git.loafle.net/chrome_devtools_protocol/protocol-go v0.0.0-20190511055751-5a1f9a8b45fc
+	git.loafle.net/odds_crawler/odds-crawler-proto v0.0.0-20190511051133-440e7ba009ca
 	github.com/golang/protobuf v1.3.1 // indirect
-	github.com/google/btree v1.0.0 // indirect
-	github.com/google/go-cmp v0.3.0 // indirect
-	github.com/google/pprof v0.0.0-20190404155422-f8f10df84213 // indirect
-	github.com/hashicorp/golang-lru v0.5.1 // indirect
-	golang.org/x/crypto v0.0.0-20190426145343-a29dc8fdc734 // indirect
-	golang.org/x/exp v0.0.0-20190429183610-475c5042d3f1 // indirect
-	golang.org/x/image v0.0.0-20190501045829-6d32002ffd75 // indirect
-	golang.org/x/lint v0.0.0-20190409202823-959b441ac422 // indirect
-	golang.org/x/mobile v0.0.0-20190415191353-3e0bab5405d6 // indirect
 	golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09 // indirect
-	golang.org/x/oauth2 v0.0.0-20190402181905-9f3314589c9a // indirect
-	golang.org/x/sys v0.0.0-20190429190828-d89cdac9e872 // indirect
 	golang.org/x/text v0.3.2 // indirect
-	golang.org/x/time v0.0.0-20190308202827-9d24e82272b4 // indirect
-	golang.org/x/tools v0.0.0-20190501045030-23463209683d // indirect
-	google.golang.org/api v0.4.0 // indirect
-	google.golang.org/appengine v1.5.0 // indirect
+	google.golang.org/appengine v1.4.0 // indirect
 	google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb // indirect
 	google.golang.org/grpc v1.20.1
-	honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a // indirect
 )
diff --git a/go.sum b/go.sum
index 3367751..e9624b1 100644
--- a/go.sum
+++ b/go.sum
@@ -1,206 +1,66 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.37.4/go.mod h1:NHPJ89PdicEuT9hdPXMROBD91xc5uRDxsMtSB16k7hw=
-git.loafle.net/chrome_devtools_protocol/protocol-go v0.0.0-20190420120325-5b4a2c84e461 h1:aLFOMFRb3aHF2ZRiGdLBqf198pcy4kCg3QCWn5TSObA=
-git.loafle.net/chrome_devtools_protocol/protocol-go v0.0.0-20190420120325-5b4a2c84e461/go.mod h1:YquKMkEKjSo/hHQDQsoPs5V8zi79klC7/OhehmZekI8=
-git.loafle.net/odds_crawler/odds-crawler-proto v0.0.0-20190501104040-9bc12a7a90fe h1:tsX2pe5I3Da3wDtTHiJ00Gk26OZiCbvtFMotnxLYVio=
-git.loafle.net/odds_crawler/odds-crawler-proto v0.0.0-20190501104040-9bc12a7a90fe/go.mod h1:ZCgzl5JJqflmR868uBsp1IGF0Kx4pEvOK4iv+Sh3I1U=
-git.loafle.net/odds_crawler/odds-crawler-proto v0.0.0-20190501132318-747705e28f94 h1:PfQET6aofcX8943OFSYemkjE3Zfd50kK5QiIkfLfkaY=
-git.loafle.net/odds_crawler/odds-crawler-proto v0.0.0-20190501132318-747705e28f94/go.mod h1:ZCgzl5JJqflmR868uBsp1IGF0Kx4pEvOK4iv+Sh3I1U=
-git.loafle.net/odds_crawler/odds-crawler-proto v0.0.0-20190508170539-4fd5bafaf1c9 h1:PpqAEllhmN01HMuaaoZYV4AcUUBMMnrY+Y1qpd4oNYs=
-git.loafle.net/odds_crawler/odds-crawler-proto v0.0.0-20190508171242-e500dd494358 h1:e0jrnklSQXFjkim5FQNmcoyPYiRCaVbHjcnJp1OykUc=
-git.loafle.net/odds_crawler/odds-crawler-proto v0.0.0-20190508171831-9b2d6aad67db h1:OhyqGjNGYuHdWEPmR68RafLA1qebj8QY9iPAOCIiRd0=
-git.loafle.net/odds_crawler/odds-crawler-proto v0.0.0-20190508171831-9b2d6aad67db/go.mod h1:ZCgzl5JJqflmR868uBsp1IGF0Kx4pEvOK4iv+Sh3I1U=
-git.loafle.net/odds_crawler/odds-crawler-proto v0.0.0-20190509143834-a3001ddaef17 h1:LH5DctE78HpB3E4d5EIW2focLwkP5SylE6Db60UqGGU=
-git.loafle.net/odds_crawler/odds-crawler-proto v0.0.0-20190509143834-a3001ddaef17/go.mod h1:ZCgzl5JJqflmR868uBsp1IGF0Kx4pEvOK4iv+Sh3I1U=
+git.loafle.net/chrome_devtools_protocol/cdp-go v0.0.0-20190511061014-f0ba3e38d8c7 h1:Hb5LqeYN2/DPJd/n+xkfDGKvx55N5qyau3pa3HCO7Ng=
+git.loafle.net/chrome_devtools_protocol/cdp-go v0.0.0-20190511061014-f0ba3e38d8c7/go.mod h1:wqIDNOh7UMegLdoxkF53aa4O1zlc4iO+CmyynoHnt+E=
+git.loafle.net/chrome_devtools_protocol/cdp-go v0.0.0-20190511062921-d38baf5aeb3b h1:kRsZ4c+Lrnvoowv1sQGx6l/V+Wk7G/nRjdITd7S5ZQU=
+git.loafle.net/chrome_devtools_protocol/protocol-go v0.0.0-20190511055751-5a1f9a8b45fc h1:o0G6s1ZPaQX2oW0xCDV+E4OVRRp5F+fnfiOKUhRBX/c=
+git.loafle.net/chrome_devtools_protocol/protocol-go v0.0.0-20190511055751-5a1f9a8b45fc/go.mod h1:YquKMkEKjSo/hHQDQsoPs5V8zi79klC7/OhehmZekI8=
+git.loafle.net/chrome_devtools_protocol/protocol-go v0.0.0-20190511062555-aeaa092ca9ac h1:1GQIoMev+gX8QtVZuvDCs4kFkrt54V3MKNWpJcjcHyU=
+git.loafle.net/odds_crawler/odds-crawler-proto v0.0.0-20190511051133-440e7ba009ca h1:1DZ5z3DinKNYbwdFX15Y6+FZl9SDAg3LmaIso+fTk+c=
+git.loafle.net/odds_crawler/odds-crawler-proto v0.0.0-20190511051133-440e7ba009ca/go.mod h1:ZCgzl5JJqflmR868uBsp1IGF0Kx4pEvOK4iv+Sh3I1U=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
-github.com/DataDog/zstd v1.3.6-0.20190409195224-796139022798/go.mod h1:1jcaCB/ufaK+sKp1NBhlGmpz41jOoPQ35bpF36t7BBo=
-github.com/DataDog/zstd v1.4.0/go.mod h1:1jcaCB/ufaK+sKp1NBhlGmpz41jOoPQ35bpF36t7BBo=
-github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
-github.com/Shopify/sarama v1.22.1/go.mod h1:FRzlvRpMFO/639zY1SDxUxkqH97Y0ndM5CbGj6oG3As=
-github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
-github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
-github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
-github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
-github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/eapache/go-resiliency v1.1.0/go.mod h1:kFI+JgMyC7bLPUVY133qvEBtVayf5mFgVsvEsIPBvNs=
-github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21/go.mod h1:+020luEh2TKB4/GOp8oxxtq0Daoen/Cii55CzbTV6DU=
-github.com/eapache/queue v1.1.0/go.mod h1:6eCeP0CKFpHLu8blIFXhExK/dRa7WDZfr6jVFPTqq+I=
-github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
-github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
-github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
-github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
-github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
-github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
-github.com/gogo/protobuf v1.2.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
-github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
+github.com/gobwas/httphead v0.0.0-20180130184737-2c6c146eadee h1:s+21KNqlpePfkah2I+gwHF8xmJWRjooY+5248k6m4A0=
+github.com/gobwas/httphead v0.0.0-20180130184737-2c6c146eadee/go.mod h1:L0fX3K22YWvt/FAX9NnzrNzcI4wNYi9Yku4O0LKYflo=
+github.com/gobwas/pool v0.2.0 h1:QEmUOlnSjWtnpRGHF3SauEiOsy82Cup83Vf2LcMlnc8=
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+github.com/gobwas/ws v1.0.0 h1:1WdyfgUcImUfVBvYbsW2krIsnko+1QU2t45soaF8v1M=
+github.com/gobwas/ws v1.0.0/go.mod h1:szmBTxLgaFppYjEmNtny/v3w89xOydFnnZMcgRRu/EM=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
-github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.1 h1:YF8+flBXS5eO826T4nzqPrxfhQThhXl0YzfuUPu4SBg=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/snappy v0.0.0-20180518054509-2e65f85255db/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
-github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
-github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
-github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
-github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
-github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
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-github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
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 github.com/knq/sysutil v0.0.0-20181215143952-f05b59f0f307 h1:vl4eIlySbjertFaNwiMjXsGrFVK25aOWLq7n+3gh2ls=
 github.com/knq/sysutil v0.0.0-20181215143952-f05b59f0f307/go.mod h1:BjPj+aVjl9FW/cCGiF3nGh5v+9Gd3VCgBQbod/GlMaQ=
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 github.com/mailru/easyjson v0.0.0-20190403194419-1ea4449da983 h1:wL11wNW7dhKIcRCHSm4sHKPWz0tt4mwBsVodG7+Xyqg=
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-github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
-github.com/onsi/gomega v1.5.0/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
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-github.com/pierrec/lz4 v0.0.0-20190327172049-315a67e90e41/go.mod h1:3/3N9NVKO0jef7pBehbT1qWhCMrIgbYNnFAZCqQ5LRc=
-github.com/pierrec/lz4 v2.0.5+incompatible/go.mod h1:pdkljMzZIN41W+lC3N2tnIh5sFi+IEE17M5jbnwPHcY=
-github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
-github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
-github.com/pkg/profile v1.2.1/go.mod h1:hJw3o1OdXxsrSjjVksARp5W95eeEaEfptyVZyv6JUPA=
-github.com/pkg/profile v1.3.0/go.mod h1:hJw3o1OdXxsrSjjVksARp5W95eeEaEfptyVZyv6JUPA=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
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 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
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diff --git a/pkg/cdp/service/v1/cdp-service.go b/pkg/cdp/service/v1/cdp-service.go
new file mode 100644
index 0000000..10c6ce1
--- /dev/null
+++ b/pkg/cdp/service/v1/cdp-service.go
@@ -0,0 +1,66 @@
+package cdp
+
+import (
+	"context"
+
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/status"
+
+	"git.loafle.net/chrome_devtools_protocol/cdp-go/pkg/cdp"
+	"git.loafle.net/chrome_devtools_protocol/protocol-go/pkg/page"
+	v1 "git.loafle.net/odds_crawler/odds-crawler-proto/pkg/api/v1"
+)
+
+const (
+	// apiVersion is version of API is provided by server
+	apiVersion = "v1"
+)
+
+// cdpServiceServer is implementation of v1.CDPServiceServer proto interface
+type cdpServiceServer struct {
+	ctx    context.Context
+	cancel context.CancelFunc
+}
+
+// NewCDPServiceServer creates ToDo service
+func NewCDPServiceServer() v1.CDPServiceServer {
+	ctx, cancel := cdp.NewContext(context.Background())
+
+	return &cdpServiceServer{
+		ctx:    ctx,
+		cancel: cancel,
+	}
+}
+
+func (s *cdpServiceServer) checkAPI(api string) error {
+	// API version is "" means use current version of the service
+	if len(api) > 0 {
+		if apiVersion != api {
+			return status.Errorf(codes.Unimplemented,
+				"unsupported API version: service implements API version '%s', but asked for '%s'", apiVersion, api)
+		}
+	}
+	return nil
+}
+
+func (s *cdpServiceServer) Navigate(ctx context.Context, req *v1.NavigateRequest) (*v1.NavigateReply, error) {
+	if err := s.checkAPI(req.Api); err != nil {
+		return nil, err
+	}
+
+	params := page.Navigate(req.Url)
+	params.WithReferrer(req.Referrer)
+	params.WithTransitionType(req.TransitionType)
+	params.WithFrameID(req.FrameID)
+
+	frameID, loaderID, errorText, err := params.Do(s.ctx)
+	if nil != err {
+		return nil, err
+	}
+
+	return &v1.NavigateReply{
+		FrameID:   frameID,
+		LoaderID:  loaderID,
+		ErrorText: errorText,
+	}, nil
+}