在一定时间内网站请求的数据达到带宽上限，超出了服务器现有的带宽大小，所以会导致服务器响应慢、数据加载慢、甚至无法访问等情况，那可能是什么原因导致的呢？

1、网络攻击：服务器或站点遭受 DDOS 攻击或 CC 攻击等，短期内产生大量的访问需求。可以使用'Web应用防火墙'进行防御

2、网站设计不合理：比如网站包含较大的图片、视/音频等文件，页面文件较大会导致页面一时半会加载不过来，这也是带宽不够用的情况。

3、存在耗资源进程：服务器内部有耗资源进程。

　　- Windows Server 2003 系统无法直接查看到，但可以借助第三方软件查看;

　　- Windows Server 2008 系统可以启动 任务管理器>性能>资源监控器>网络>查看 发送(字节/秒)占用较多的进程。如果不是常用进程，说明可能是病毒或异常文件;如果是常用进程，说明该进程当前有异常，需要针对该进程对应的服务进行一下分析。

4、爬虫：正常网站所消耗的带宽较多，此类情况建议通过访问的日志来分析，如果日志中过多的 baiduspider 或googlebot 。说明网页被爬虫抓取，大量来自搜索引擎的链接也容易跑高带宽，例如:windows-cmd 下找到iis的日志，可以使用命令 type *.log | find 'baidu ' 等。

　　同时检查站点是否存有 MP3，flv，swf 等大文件被频繁访问下载，如果此类文件较多，建议减少这些文件，可搭配使用 OSS、CDN 服务。网站规模很大

　　网站规模较大(比如门户网站、商城等)，即网站本身访问量需求大，查看网站的 Page View 值、Hits 值、日流量都很高，建议升级带宽 。

5、病毒：Windows 系统服务器中病毒或站点挂马，导致香港服务器内部有对外发包的文件。

　　建议在服务器上安装杀毒软件，进行杀毒。可以通过任务管理器中查看是否异常进程。WINDOWS 系统有自动杀毒软件，您可以登陆服务器根据自己的日常使用的杀毒软件进行安装即可或下载第三方杀毒软件。

浙江杭州BGP机房，毗邻阿里巴巴、网易、华为等互联网企业，以中国优质网络资源为依托，拥有一流的机房环境、优质的网络条件和丰富的运营经验，为政府、金融及中小型企业提供各类互联网需求服务，江西驰网科技idc02.com携手杭州BGP机房帮助用户快速构建稳定、安全的云计算环境。

43.228.52.1

43.228.52.2

43.228.52.3

43.228.52.4

43.228.52.5

43.228.52.6

43.228.52.7

43.228.52.8

43.228.52.9

43.228.52.10

43.228.52.11

43.228.52.12

43.228.52.13

43.228.52.14

43.228.52.15

43.228.52.16

43.228.52.17

43.228.52.18

43.228.52.19

43.228.52.20

43.228.52.21

43.228.52.22

43.228.52.23

43.228.52.24

43.228.52.25

43.228.52.26

43.228.52.27

43.228.52.28

43.228.52.29

43.228.52.30

43.228.52.31

43.228.52.32

43.228.52.33

43.228.52.34

43.228.52.35

43.228.52.36

43.228.52.37

43.228.52.38

43.228.52.39

43.228.52.40

43.228.52.41

43.228.52.42

43.228.52.43

43.228.52.44

43.228.52.45

43.228.52.46

43.228.52.47

43.228.52.48

43.228.52.49

43.228.52.50

43.228.52.51

43.228.52.52

43.228.52.53

43.228.52.54

43.228.52.55

43.228.52.56

43.228.52.57

43.228.52.58

43.228.52.59

43.228.52.60

43.228.52.61

43.228.52.62

43.228.52.63

43.228.52.64

43.228.52.65

43.228.52.66

43.228.52.67

43.228.52.68

43.228.52.69

43.228.52.70

43.228.52.71

43.228.52.72

43.228.52.73

43.228.52.74

43.228.52.75

43.228.52.76

43.228.52.77

43.228.52.78

43.228.52.79

43.228.52.80

43.228.52.81

43.228.52.82

43.228.52.83

43.228.52.84

43.228.52.85

43.228.52.86

43.228.52.87

43.228.52.88

43.228.52.89

43.228.52.90

43.228.52.91

43.228.52.92

43.228.52.93

43.228.52.94

43.228.52.95

43.228.52.96

43.228.52.97

43.228.52.98

43.228.52.99

43.228.52.100

43.228.52.101

43.228.52.102

43.228.52.103

43.228.52.104

43.228.52.105

43.228.52.106

43.228.52.107

43.228.52.108

43.228.52.109

43.228.52.110

43.228.52.111

43.228.52.112

43.228.52.113

43.228.52.114

43.228.52.115

43.228.52.116

43.228.52.117

43.228.52.118

43.228.52.119

43.228.52.120

43.228.52.121

43.228.52.122

43.228.52.123

43.228.52.124

43.228.52.125

43.228.52.126

43.228.52.127

43.228.52.128

43.228.52.129

43.228.52.130

43.228.52.131

43.228.52.132

43.228.52.133

43.228.52.134

43.228.52.135

43.228.52.136

43.228.52.137

43.228.52.138

43.228.52.139

43.228.52.140

43.228.52.141

43.228.52.142

43.228.52.143

43.228.52.144

43.228.52.145

43.228.52.146

43.228.52.147

43.228.52.148

43.228.52.149

43.228.52.150

43.228.52.151

43.228.52.152

43.228.52.153

43.228.52.154

43.228.52.155

43.228.52.156

43.228.52.157

43.228.52.158

43.228.52.159

43.228.52.160

43.228.52.161

43.228.52.162

43.228.52.163

43.228.52.164

43.228.52.165

43.228.52.166

43.228.52.167

43.228.52.168

43.228.52.169

43.228.52.170

43.228.52.171

43.228.52.172

43.228.52.173

43.228.52.174

43.228.52.175

43.228.52.176

43.228.52.177

43.228.52.178

43.228.52.179

43.228.52.180

43.228.52.181

43.228.52.182

43.228.52.183

43.228.52.184

43.228.52.185

43.228.52.186

43.228.52.187

43.228.52.188

43.228.52.189

43.228.52.190

43.228.52.191

43.228.52.192

43.228.52.193

43.228.52.194

43.228.52.195

43.228.52.196

43.228.52.197

43.228.52.198

43.228.52.199

43.228.52.200

43.228.52.201

43.228.52.202

43.228.52.203

43.228.52.204

43.228.52.205

43.228.52.206

43.228.52.207

43.228.52.208

43.228.52.209

43.228.52.210

43.228.52.211

43.228.52.212

43.228.52.213

43.228.52.214

43.228.52.215

43.228.52.216

43.228.52.217

43.228.52.218

43.228.52.219

43.228.52.220

43.228.52.221

43.228.52.222

43.228.52.223

43.228.52.224

43.228.52.225

43.228.52.226

43.228.52.227

43.228.52.228

43.228.52.229

43.228.52.230

43.228.52.231

43.228.52.232

43.228.52.233

43.228.52.234

43.228.52.235

43.228.52.236

43.228.52.237

43.228.52.238

43.228.52.239

43.228.52.240

43.228.52.241

43.228.52.242

43.228.52.243

43.228.52.244

43.228.52.245

43.228.52.246

43.228.52.247

43.228.52.248

43.228.52.249

43.228.52.250

43.228.52.251

43.228.52.252

43.228.52.253

43.228.52.254

43.228.52.255