cmd/sgblog/http.go | 48 +++++++++++++++++++++++++-----------------------
 common.go          |  2 +-

diff --git a/cmd/sgblog/http.go b/cmd/sgblog/http.go
index f4db38d18262fddf71b8b90aebbb332de14334ab60449c012cdf323d185d6748..dd97cc8500de7aeac96f7bb5f10845110ce110353247870bf37ea7053f44a296 100644
--- a/cmd/sgblog/http.go
+++ b/cmd/sgblog/http.go
@@ -30,6 +30,7 @@ 	"hash"
 	"html"
 	"io"
 	"log"
+	"net/http"
 	"net/url"
 	"os"
 	"strconv"
@@ -134,7 +135,8 @@ 	lines = append(lines, "")
 	return strings.Join(lines, "\n")
 }
 
-func makeErr(err error) {
+func makeErr(err error, status int) {
+	fmt.Println("Status:", status)
 	fmt.Print("Content-Type: text/plain; charset=UTF-8\n\n")
 	fmt.Println(err)
 	log.Fatalln(err)
@@ -175,7 +177,7 @@ 		pathInfo = "/"
 	}
 	queryValues, err := url.ParseQuery(os.Getenv("QUERY_STRING"))
 	if err != nil {
-		makeErr(err)
+		makeErr(err, http.StatusBadRequest)
 	}
 
 	etagHash, err := blake2b.New256(nil)
@@ -210,7 +212,7 @@ 	}
 
 	headHash, err := initRepo(cfg)
 	if err != nil {
-		makeErr(err)
+		makeErr(err, http.StatusInternalServerError)
 	}
 
 	if notes, err := repo.Notes(); err == nil {
@@ -254,20 +256,20 @@ 		offset := 0
 		if offsetRaw, exists := queryValues["offset"]; exists {
 			offset, err = strconv.Atoi(offsetRaw[0])
 			if err != nil {
-				makeErr(err)
+				makeErr(err, http.StatusBadRequest)
 			}
 		}
 		repoLog, err := repo.Log(&git.LogOptions{From: *headHash})
 		if err != nil {
-			makeErr(err)
+			makeErr(err, http.StatusInternalServerError)
 		}
 		topicsCache, err := getTopicsCache(cfg, repoLog)
 		if err != nil {
-			makeErr(err)
+			makeErr(err, http.StatusInternalServerError)
 		}
 		repoLog, err = repo.Log(&git.LogOptions{From: *headHash})
 		if err != nil {
-			makeErr(err)
+			makeErr(err, http.StatusInternalServerError)
 		}
 
 		commitN := 0
@@ -277,7 +279,7 @@ 		if t, exists := queryValues["topic"]; exists {
 			topic = t[0]
 			hashes := topicsCache[topic]
 			if hashes == nil {
-				makeErr(errors.New("no posts with that topic"))
+				makeErr(errors.New("no posts with that topic"), http.StatusBadRequest)
 			}
 			if len(hashes) > offset {
 				hashes = hashes[offset:]
@@ -372,12 +374,12 @@ 			LogEnded:         logEnded,
 			Entries:          entries,
 		})
 		if err != nil {
-			makeErr(err)
+			makeErr(err, http.StatusInternalServerError)
 		}
 	} else if pathInfo == "/"+AtomPostsFeed {
 		commit, err := repo.CommitObject(*headHash)
 		if err != nil {
-			makeErr(err)
+			makeErr(err, http.StatusInternalServerError)
 		}
 
 		var topic string
@@ -415,7 +417,7 @@ 		}
 
 		repoLog, err := repo.Log(&git.LogOptions{From: *headHash})
 		if err != nil {
-			makeErr(err)
+			makeErr(err, http.StatusInternalServerError)
 		}
 		var commits CommitIterNext
 		if topic == "" {
@@ -423,11 +425,11 @@ 			commits = repoLog
 		} else {
 			topicsCache, err := getTopicsCache(cfg, repoLog)
 			if err != nil {
-				makeErr(err)
+				makeErr(err, http.StatusInternalServerError)
 			}
 			hashes := topicsCache[topic]
 			if hashes == nil {
-				makeErr(errors.New("no posts with that topic"))
+				makeErr(errors.New("no posts with that topic"), http.StatusBadRequest)
 			}
 			commits = &HashesIter{hashes}
 		}
@@ -467,14 +469,14 @@ 			})
 		}
 		data, err := xml.MarshalIndent(&feed, "", "  ")
 		if err != nil {
-			makeErr(err)
+			makeErr(err, http.StatusInternalServerError)
 		}
 		out.Write(data)
 		goto AtomFinish
 	} else if pathInfo == "/"+AtomCommentsFeed {
 		commit, err := repo.CommitObject(commentsRef.Hash())
 		if err != nil {
-			makeErr(err)
+			makeErr(err, http.StatusInternalServerError)
 		}
 		etagHash.Write([]byte("ATOM COMMENTS"))
 		etagHash.Write(commit.Hash[:])
@@ -497,7 +499,7 @@ 			Author: &atom.Person{Name: cfg.AtomAuthor},
 		}
 		repoLog, err := repo.Log(&git.LogOptions{From: commentsRef.Hash()})
 		if err != nil {
-			makeErr(err)
+			makeErr(err, http.StatusInternalServerError)
 		}
 		for i := 0; i < PageEntries; i++ {
 			commit, err = repoLog.Next()
@@ -506,11 +508,11 @@ 				break
 			}
 			fileStats, err := commit.Stats()
 			if err != nil {
-				makeErr(err)
+				makeErr(err, http.StatusInternalServerError)
 			}
 			t, err := commit.Tree()
 			if err != nil {
-				makeErr(err)
+				makeErr(err, http.StatusInternalServerError)
 			}
 			commentedHash := plumbing.NewHash(strings.ReplaceAll(
 				fileStats[0].Name, "/", "",
@@ -561,14 +563,14 @@ 			})
 		}
 		data, err := xml.MarshalIndent(&feed, "", "  ")
 		if err != nil {
-			makeErr(err)
+			makeErr(err, http.StatusInternalServerError)
 		}
 		out.Write(data)
 		goto AtomFinish
 	} else if sha1DigestRe.MatchString(pathInfo[1:]) {
 		commit, err := repo.CommitObject(plumbing.NewHash(pathInfo[1 : 1+sha1.Size*2]))
 		if err != nil {
-			makeErr(err)
+			makeErr(err, http.StatusBadRequest)
 		}
 		for _, data := range etagHashForWeb {
 			etagHash.Write([]byte(data))
@@ -667,7 +669,7 @@ 				})
 			}
 			data, err := xml.MarshalIndent(&feed, "", "  ")
 			if err != nil {
-				makeErr(err)
+				makeErr(err, http.StatusInternalServerError)
 			}
 			out.Write(data)
 			goto AtomFinish
@@ -723,10 +725,10 @@ 			Comments:        comments,
 			Topics:          sgblog.ParseTopics(topicsRaw),
 		})
 		if err != nil {
-			makeErr(err)
+			makeErr(err, http.StatusInternalServerError)
 		}
 	} else {
-		makeErr(errors.New("unknown URL action"))
+		makeErr(errors.New("unknown URL action"), http.StatusNotFound)
 	}
 	out.Write([]byte("</body></html>\n"))
 	if gzipWriter != nil {
diff --git a/common.go b/common.go
index c7e437e9ea7561a1f7b427c2058c610c3d5490a95d05d4fa4adda73911511716..378e1a24b32fab325fa1fc934a567b2af7f3ca22a1e24352dec69a1f15ec0434 100644
--- a/common.go
+++ b/common.go
@@ -15,7 +15,7 @@ 	"go.cypherpunks.ru/recfile"
 )
 
 const (
-	Version = "0.22.0"
+	Version = "0.23.0"
 	WhenFmt = "2006-01-02 15:04:05Z07:00"
 )