diff --git a/README.md b/README.md
index 014f0db3..7a79bed4 100644
--- a/README.md
+++ b/README.md
@@ -329,7 +329,7 @@ Just set the `length` parameter with a prefix `ec-`.
 
 For example:
 
-### Single domain ECC cerfiticate
+### Single domain ECC certificate
 
 ```bash
 acme.sh --issue -w /home/wwwroot/example.com -d example.com --keylength ec-256
diff --git a/acme.sh b/acme.sh
index 244f72e3..ce5b1dbd 100755
--- a/acme.sh
+++ b/acme.sh
@@ -879,7 +879,7 @@ _sign() {
     if ! _signedECText="$($_sign_openssl | $ACME_OPENSSL_BIN asn1parse -inform DER)"; then
       _err "Sign failed: $_sign_openssl"
       _err "Key file: $keyfile"
-      _err "Key content:$(wc -l <"$keyfile") lises"
+      _err "Key content:$(wc -l <"$keyfile") lines"
       return 1
     fi
     _debug3 "_signedECText" "$_signedECText"
@@ -2258,16 +2258,16 @@ _initpath() {
   fi
 
   if [ -z "$TLS_CONF" ]; then
-    TLS_CONF="$DOMAIN_PATH/tls.valdation.conf"
+    TLS_CONF="$DOMAIN_PATH/tls.validation.conf"
   fi
   if [ -z "$TLS_CERT" ]; then
-    TLS_CERT="$DOMAIN_PATH/tls.valdation.cert"
+    TLS_CERT="$DOMAIN_PATH/tls.validation.cert"
   fi
   if [ -z "$TLS_KEY" ]; then
-    TLS_KEY="$DOMAIN_PATH/tls.valdation.key"
+    TLS_KEY="$DOMAIN_PATH/tls.validation.key"
   fi
   if [ -z "$TLS_CSR" ]; then
-    TLS_CSR="$DOMAIN_PATH/tls.valdation.csr"
+    TLS_CSR="$DOMAIN_PATH/tls.validation.csr"
   fi
 
 }
@@ -2385,7 +2385,7 @@ _setApache() {
   _debug "Backup apache config file" "$httpdconf"
   if ! cp "$httpdconf" "$APACHE_CONF_BACKUP_DIR/"; then
     _err "Can not backup apache config file, so abort. Don't worry, the apache config is not changed."
-    _err "This might be a bug of $PROJECT_NAME , pleae report issue: $PROJECT"
+    _err "This might be a bug of $PROJECT_NAME , please report issue: $PROJECT"
     return 1
   fi
   _info "JFYI, Config file $httpdconf is backuped to $APACHE_CONF_BACKUP_DIR/$httpdconfname"
@@ -2883,7 +2883,7 @@ _on_issue_err() {
         uri=$(echo "$ventry" | cut -d "$sep" -f 3)
         vtype=$(echo "$ventry" | cut -d "$sep" -f 4)
         _currentRoot=$(echo "$ventry" | cut -d "$sep" -f 5)
-        __trigger_validaton "$uri" "$keyauthorization"
+        __trigger_validation "$uri" "$keyauthorization"
       done
     )
   fi
@@ -3105,7 +3105,7 @@ __get_domain_new_authz() {
 }
 
 #uri keyAuthorization
-__trigger_validaton() {
+__trigger_validation() {
   _debug2 "tigger domain validation."
   _t_url="$1"
   _debug2 _t_url "$_t_url"
@@ -3490,7 +3490,7 @@ issue() {
               _exec_err >/dev/null 2>&1
             fi
           else
-            _debug "not chaning owner/group of webroot"
+            _debug "not changing owner/group of webroot"
           fi
         fi
 
@@ -3531,7 +3531,7 @@ issue() {
       fi
     fi
 
-    if ! __trigger_validaton "$uri" "$keyauthorization"; then
+    if ! __trigger_validation "$uri" "$keyauthorization"; then
       _err "$d:Can not get challenge: $response"
       _clearupwebbroot "$_currentRoot" "$removelevel" "$token"
       _clearup
@@ -4806,13 +4806,13 @@ Parameters:
   --listraw                         Only used for '--list' command, list the certs in raw format.
   --stopRenewOnError, -se           Only valid for '--renew-all' command. Stop if one cert has error in renewal.
   --insecure                        Do not check the server certificate, in some devices, the api server's certificate may not be trusted.
-  --ca-bundle                       Specifices the path to the CA certificate bundle to verify api server's certificate.
+  --ca-bundle                       Specifies the path to the CA certificate bundle to verify api server's certificate.
   --ca-path                         Specifies directory containing CA certificates in PEM format, used by wget or curl.
   --nocron                          Only valid for '--install' command, which means: do not install the default cron job. In this case, the certs will not be renewed automatically.
   --ecc                             Specifies to use the ECC cert. Valid for '--install-cert', '--renew', '--revoke', '--toPkcs' and '--createCSR'
   --csr                             Specifies the input csr.
   --pre-hook                        Command to be run before obtaining any certificates.
-  --post-hook                       Command to be run after attempting to obtain/renew certificates. No matter the obain/renew is success or failed.
+  --post-hook                       Command to be run after attempting to obtain/renew certificates. No matter the obtain/renew is success or failed.
   --renew-hook                      Command to be run once for each successfully renewed certificate.
   --deploy-hook                     The hook file to deploy cert
   --ocsp-must-staple, --ocsp        Generate ocsp must Staple extension.
diff --git a/deploy/exim4.sh b/deploy/exim4.sh
index bf92b438..573f762b 100644
--- a/deploy/exim4.sh
+++ b/deploy/exim4.sh
@@ -79,7 +79,7 @@ exim4_deploy() {
         _info "Restore conf success"
         eval "$_reload"
       else
-        _err "Opps, error restore exim4 conf, please report bug to us."
+        _err "Oops, error restore exim4 conf, please report bug to us."
       fi
       return 1
     fi
@@ -105,7 +105,7 @@ exim4_deploy() {
       _info "Restore conf success"
       eval "$_reload"
     else
-      _err "Opps, error restore exim4 conf, please report bug to us."
+      _err "Oops, error restore exim4 conf, please report bug to us."
     fi
     return 1
   fi
diff --git a/deploy/kong.sh b/deploy/kong.sh
index 3b9c5c79..e1873f35 100755
--- a/deploy/kong.sh
+++ b/deploy/kong.sh
@@ -43,7 +43,7 @@ kong_deploy() {
   #Save kong url if it's succesful (First run case)
   _saveaccountconf KONG_URL "$KONG_URL"
   #Generate DEIM
-  delim="-----MultipartDelimeter$(date "+%s%N")"
+  delim="-----MultipartDelimiter$(date "+%s%N")"
   nl="\015\012"
   #Set Header
   _H1="Content-Type: multipart/form-data; boundary=$delim"
@@ -72,7 +72,7 @@ kong_deploy() {
     response=$(_post "$content" "$KONG_URL/apis/$uuid/plugins/$ssl_uuid" "" "PATCH")
   fi
   if ! [ "$(echo "$response" | _egrep_o "ssl")" = "ssl" ]; then
-    _err "An error occured with cert upload. Check response:"
+    _err "An error occurred with cert upload. Check response:"
     _err "$response"
     return 1
   fi
diff --git a/deploy/vsftpd.sh b/deploy/vsftpd.sh
index 1c6410a6..ed44e709 100644
--- a/deploy/vsftpd.sh
+++ b/deploy/vsftpd.sh
@@ -76,7 +76,7 @@ vsftpd_deploy() {
         _info "Restore conf success"
         eval "$_reload"
       else
-        _err "Opps, error restore vsftpd conf, please report bug to us."
+        _err "Oops, error restore vsftpd conf, please report bug to us."
       fi
       return 1
     fi
@@ -102,7 +102,7 @@ vsftpd_deploy() {
       _info "Restore conf success"
       eval "$_reload"
     else
-      _err "Opps, error restore vsftpd conf, please report bug to us."
+      _err "Oops, error restore vsftpd conf, please report bug to us."
     fi
     return 1
   fi
diff --git a/dnsapi/README.md b/dnsapi/README.md
index 4543d9b4..9eb77915 100644
--- a/dnsapi/README.md
+++ b/dnsapi/README.md
@@ -302,7 +302,7 @@ acme.sh --issue --dns dns_freedns -d example.com -d www.example.com
 ```
 
 Note that you cannot use acme.sh automatic DNS validation for FreeDNS public domains or for a subdomain that
-you create under a FreeDNS public domain.  You must own the top level domain in order to automaitcally
+you create under a FreeDNS public domain.  You must own the top level domain in order to automatically
 validate with acme.sh at FreeDNS.
 
 ## 16. Use cyon.ch
diff --git a/dnsapi/dns_cyon.sh b/dnsapi/dns_cyon.sh
index c096d8b0..d7ad712c 100644
--- a/dnsapi/dns_cyon.sh
+++ b/dnsapi/dns_cyon.sh
@@ -50,7 +50,7 @@ _cyon_load_credentials() {
   fi
 
   if [ -z "${CY_Username}" ] || [ -z "${CY_Password}" ]; then
-    # Dummy entries to satify script checker.
+    # Dummy entries to satisfy script checker.
     CY_Username=""
     CY_Password=""
     CY_OTP_Secret=""
diff --git a/dnsapi/dns_dgon.sh b/dnsapi/dns_dgon.sh
index 9ceede44..7e1f1fec 100755
--- a/dnsapi/dns_dgon.sh
+++ b/dnsapi/dns_dgon.sh
@@ -158,7 +158,7 @@ _get_base_domain() {
   export _H2="Authorization: Bearer $DO_API_KEY"
   _debug DO_API_KEY "$DO_API_KEY"
   ## get URL for the list of domains
-  ## havent seen this request paginated, tested with 18 domains (more requres manual requests with DO)
+  ## havent seen this request paginated, tested with 18 domains (more requires manual requests with DO)
   DOMURL="https://api.digitalocean.com/v2/domains"
 
   ## get the domain list (DO gives basically a full XFER!)
diff --git a/dnsapi/dns_freedns.sh b/dnsapi/dns_freedns.sh
index f30c8958..272a1243 100755
--- a/dnsapi/dns_freedns.sh
+++ b/dnsapi/dns_freedns.sh
@@ -10,7 +10,7 @@
 #
 ########  Public functions #####################
 
-# Export FreeDNS userid and password in folowing variables...
+# Export FreeDNS userid and password in following variables...
 #  FREEDNS_User=username
 #  FREEDNS_Password=password
 # login cookie is saved in acme account config file so userid / pw
@@ -53,7 +53,7 @@ dns_freedns_add() {
   i="$(_math "$i" - 1)"
   sub_domain="$(echo "$fulldomain" | cut -d. -f -"$i")"
 
-  # Sometimes FreeDNS does not reurn the subdomain page but rather 
+  # Sometimes FreeDNS does not return the subdomain page but rather 
   # returns a page regarding becoming a premium member.  This usually
   # happens after a period of inactivity.  Immediately trying again
   # returns the correct subdomain page.  So, we will try twice to
@@ -65,7 +65,7 @@ dns_freedns_add() {
     htmlpage="$(_freedns_retrieve_subdomain_page "$FREEDNS_COOKIE")"
     if [ "$?" != "0" ]; then
       if [ "$using_cached_cookies" = "true" ]; then
-        _err "Has your FreeDNS username and password channged?  If so..."
+        _err "Has your FreeDNS username and password changed?  If so..."
         _err "Please export as FREEDNS_User / FREEDNS_Password and try again."
       fi
       return 1
@@ -112,7 +112,7 @@ dns_freedns_add() {
           # not produce accurate results as the value field is truncated
           # on this webpage. To get full value we would need to load
           # another page. However we don't really need this so long as
-          # there is only one TXT record for the acme chalenge subdomain.
+          # there is only one TXT record for the acme challenge subdomain.
           DNSvalue="$(echo "$line" | cut -d ',' -f 4 | sed 's/^[^&quot;]*&quot;//;s/&quot;.*//;s/<\/td>.*//')"
           if [ $found != 0 ]; then
             break
@@ -192,11 +192,11 @@ dns_freedns_rm() {
 
   # Need to read cookie from conf file again in case new value set
   # during login to FreeDNS when TXT record was created.
-  # acme.sh does not have a _readaccountconf() fuction
+  # acme.sh does not have a _readaccountconf() function
   FREEDNS_COOKIE="$(_read_conf "$ACCOUNT_CONF_PATH" "FREEDNS_COOKIE")"
   _debug "FreeDNS login cookies: $FREEDNS_COOKIE"
 
-  # Sometimes FreeDNS does not reurn the subdomain page but rather 
+  # Sometimes FreeDNS does not return the subdomain page but rather 
   # returns a page regarding becoming a premium member.  This usually
   # happens after a period of inactivity.  Immediately trying again
   # returns the correct subdomain page.  So, we will try twice to
@@ -302,12 +302,12 @@ _freedns_retrieve_subdomain_page() {
   export _H2="Accept-Language:en-US"
   url="https://freedns.afraid.org/subdomain/"
 
-  _debug "Retrieve subdmoain page from FreeDNS"
+  _debug "Retrieve subdomain page from FreeDNS"
 
   htmlpage="$(_get "$url")"
 
   if [ "$?" != "0" ]; then
-    _err "FreeDNS retrieve subdomins failed bad RC from _get"
+    _err "FreeDNS retrieve subdomains failed bad RC from _get"
     return 1
   elif [ -z "$htmlpage" ]; then
     _err "FreeDNS returned empty subdomain page"
@@ -341,7 +341,7 @@ _freedns_add_txt_record() {
     return 1
   elif _contains "$htmlpage" "security code was incorrect"; then
     _debug "$htmlpage"
-    _err "FreeDNS failed to add TXT record for $subdomain as FreeDNS requested seurity code"
+    _err "FreeDNS failed to add TXT record for $subdomain as FreeDNS requested security code"
     _err "Note that you cannot use automatic DNS validation for FreeDNS public domains"
     return 1
   fi
diff --git a/dnsapi/dns_gandi_livedns.sh b/dnsapi/dns_gandi_livedns.sh
index 41f42980..28b8f99d 100755
--- a/dnsapi/dns_gandi_livedns.sh
+++ b/dnsapi/dns_gandi_livedns.sh
@@ -19,7 +19,7 @@ dns_gandi_livedns_add() {
   txtvalue=$2
 
   if [ -z "$GANDI_LIVEDNS_KEY" ]; then
-    _err "No API key specifed for Gandi LiveDNS."
+    _err "No API key specified for Gandi LiveDNS."
     _err "Create your key and export it as GANDI_LIVEDNS_KEY"
     return 1
   fi
diff --git a/dnsapi/dns_ovh.sh b/dnsapi/dns_ovh.sh
index faf5b42b..71642bd4 100755
--- a/dnsapi/dns_ovh.sh
+++ b/dnsapi/dns_ovh.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 
-#Applcation Key
+#Application Key
 #OVH_AK="sdfsdfsdfljlbjkljlkjsdfoiwje"
 #
 #Application Secret
diff --git a/dnsapi/dns_pdns.sh b/dnsapi/dns_pdns.sh
index ebc02949..7d807c81 100755
--- a/dnsapi/dns_pdns.sh
+++ b/dnsapi/dns_pdns.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 
-#PowerDNS Emdedded API
+#PowerDNS Embedded API
 #https://doc.powerdns.com/md/httpapi/api_spec/
 #
 #PDNS_Url="http://ns.example.com:8081"