use php-phantomjs

gistfile1.txt

        $client = Client::getInstance();

        $client->getEngine()->setPath('/bin/phantomjs');
        // $client->getEngine()->addOption('--ignore-ssl-errors=true');
        $client->getEngine()->addOption('--ssl-protocol=any');
        $client->getEngine()->addOption('--web-security=false');
        $client->getEngine()->debug(true);

        $request  = $client->getMessageFactory()->createCaptureRequest();
        $response = $client->getMessageFactory()->createResponse();

        $width  = 800;
        $height = 800;
        $captureFile = public_path("images/screenshots/{$bookmark->id}.png");
        $thumbFile = public_path("images/screenshots/{$bookmark->id}_thumb.png");

        $request->setMethod('GET');
        $request->setUrl($bookmark->url);
        $request->setOutputFile($captureFile);
        $request->setCaptureDimensions($width, $height);
        $request->setViewportSize($width, $height);

        $timeout = 20000; // 20 seconds
        $request->setTimeout($timeout);

        $client->send($request, $response);

        $status = $response->getStatus();

        if ($status === 200 || $status === 301 || $status === 302) {
            $img = Image::make($captureFile);
            $img->widen(300)->crop(300, 160, 0, 0);
            $img->save($thumbFile);

            $bookmark->thumbnail = 1;
            $bookmark->save();
        }