- update readme

- add ErrBlocked

README.md

@@ -62,7 +62,7 @@ Also note, that if you call this function too quickly, Google detects that it is
 You can try the built-in [rate-limiter](https://godoc.org/github.com/rocketlaunchr/google-search#RateLimit).
 
 <details>
-  <summary>Further Details</summary>
+  <summary>HTTP STATUS CODE: 429 &mdash; Too Many Requests</summary>
   
 <svg width="100" height="100" xmlns="http://www.w3.org/2000/svg">
 <foreignObject width="100" height="100">
@@ -72,7 +72,6 @@ You can try the built-in [rate-limiter](https://godoc.org/github.com/rocketlaunc
 
 
   <div style="font-size:13px;">
-  [HTTP STATUS CODE: 429 &mdash; Too Many Requests]
   <b>About this page</b><br><br>
 
   Our systems have detected unusual traffic from your computer network.  This page checks to see if it&#39;s really you sending the requests, and not a robot.  <a href="#" onclick="document.getElementById('infoDiv').style.display='block';">Why did this happen?</a><br><br>

limit.go

@@ -1,6 +1,16 @@
 package googlesearch
 
-import "golang.org/x/time/rate"
+import (
+	"errors"
+
+	"golang.org/x/time/rate"
+)
+
+// ErrBlocked indicates that Google has detected that you were scraping and temporarily blocked you.
+// The duration of the block is unspecified.
+//
+// See: https://github.com/rocketlaunchr/google-search#warning-warning
+var ErrBlocked = errors.New("google block")
 
 // RateLimit sets a global limit to how many requests to Google Search can be made in a given time interval.
 // The default is unlimited (but obviously Google Search will block you temporarily if you do too many

search.go

@@ -340,6 +340,9 @@ func Search(ctx context.Context, searchTerm string, opts ...SearchOptions) ([]Re
 	c.Visit(url)
 
 	if rErr != nil {
+		if strings.Contains(rErr.Error(), "Too Many Requests") {
+			return nil, ErrBlocked
+		}
 		return nil, rErr
 	}