diff --git a/cdn.go b/cdn.go
index e5698ca..b2d16b2 100644
--- a/cdn.go
+++ b/cdn.go
@@ -18,7 +18,7 @@ type BunnyCdn struct {
 var bunnyCdnUrl = "https://bunnycdn.com"
 
 func (cdn *BunnyCdn) Purge(url string) {
-	client := &http.Client{}
+	client := http.DefaultClient
 	req, _ := http.NewRequest("POST", bunnyCdnUrl+"/api/purge?url="+url, nil)
 	req.Header.Add("Content-Type", "application/json")
 	req.Header.Add("Accept", "application/json")
diff --git a/imagecompression.go b/imagecompression.go
index cf6702c..ce6f1c3 100644
--- a/imagecompression.go
+++ b/imagecompression.go
@@ -51,6 +51,7 @@ func (t *Tinify) Compress(url string) (location string, err error) {
 		return
 	}
 	defer func() {
+		_ = file.Close()
 		_ = os.Remove(file.Name())
 	}()
 	e = s.ToFile(file.Name())
diff --git a/mediaendpoint.go b/mediaendpoint.go
index a1e0b03..9c21656 100644
--- a/mediaendpoint.go
+++ b/mediaendpoint.go
@@ -40,6 +40,7 @@ func HandleMedia(w http.ResponseWriter, r *http.Request) {
 			_, _ = w.Write([]byte("Failed to get file"))
 			return
 		}
+		defer func() { _ = file.Close() }()
 		hashFile, _, _ := r.FormFile("file")
 		defer func() { _ = hashFile.Close() }()
 		fileName, err := getSHA256(hashFile)
diff --git a/mediastorage.go b/mediastorage.go
index 6bd4702..4ac0ba9 100644
--- a/mediastorage.go
+++ b/mediastorage.go
@@ -27,7 +27,7 @@ type BunnyCdnStorage struct {
 var bunnyCdnStorageUrl = "https://storage.bunnycdn.com"
 
 func (b *BunnyCdnStorage) Upload(fileName string, file multipart.File) (location string, err error) {
-	client := &http.Client{}
+	client := http.DefaultClient
 	req, _ := http.NewRequest(http.MethodPut, bunnyCdnStorageUrl+"/"+url.PathEscape(b.storageZoneName)+"/"+url.PathEscape("/"+fileName), file)
 	req.Header.Add("AccessKey", b.key)
 	resp, err := client.Do(req)
diff --git a/validation.go b/validation.go
index 5556a3d..db8d354 100644
--- a/validation.go
+++ b/validation.go
@@ -3,7 +3,6 @@ package main
 import (
 	"encoding/json"
 	"errors"
-	"io/ioutil"
 	"net/http"
 	"strings"
 )
@@ -34,7 +33,7 @@ func checkAccess(token string) (bool, error) {
 		return false, errors.New("token string is empty")
 	}
 	// form the request to check the token
-	client := &http.Client{}
+	client := http.DefaultClient
 	req, err := http.NewRequest("GET", indieAuthTokenUrl, nil)
 	if err != nil {
 		return false, errors.New("error making the request for checking token access")
@@ -46,14 +45,10 @@ func checkAccess(token string) (bool, error) {
 	if err != nil {
 		return false, errors.New("error sending the request for checking token access")
 	}
-	defer res.Body.Close()
 	// parse the response
-	body, err := ioutil.ReadAll(res.Body)
-	if err != nil {
-		return false, errors.New("error parsing the response for checking token access")
-	}
-	var indieAuthRes = new(IndieAuthRes)
-	err = json.Unmarshal(body, &indieAuthRes)
+	indieAuthRes := &IndieAuthRes{}
+	err = json.NewDecoder(res.Body).Decode(&indieAuthRes)
+	res.Body.Close()
 	if err != nil {
 		return false, errors.New("Error parsing the response into json for checking token access " + err.Error())
 	}
diff --git a/webmention.go b/webmention.go
index 53032cc..a1138be 100644
--- a/webmention.go
+++ b/webmention.go
@@ -154,7 +154,7 @@ func HandleWebmention(w http.ResponseWriter, r *http.Request) {
 }
 
 func responseCodeForSource(source string) (int, error) {
-	client := &http.Client{}
+	client := http.DefaultClient
 	resp, err := client.Get(source)
 	if err != nil || resp == nil {
 		return 0, err
@@ -208,4 +208,4 @@ func returnSuccess(target string, w http.ResponseWriter, r *http.Request) {
 		}
 	}()
 	return
-}
\ No newline at end of file
+}