版本与年限
Chrome
| Chrome 版本 | 发布年份 | User-Agent 示例 |
|---|---|---|
| Chrome 49 | 2016 | Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/49.0.2623.112 Safari/537.36 |
| Chrome 50 | 2016 | Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.75 Safari/537.36 |
| Chrome 60 | 2017 | Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36 |
| Chrome 70 | 2018 | Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36 |
| Chrome 80 | 2020 | Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.87 Safari/537.36 |
| Chrome 90 | 2021 | Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.72 Safari/537.36 |
| Chrome 100 | 2022 | Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.60 Safari/537.36 |
| Chrome 110 | 2023 | Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.5481.177 Safari/537.36 |
| Chrome 120 | 2023 | Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.63 Safari/537.36 |
Chrome 版本的 User-Agent 均遵循以下格式：
Mozilla/5.0 (平台信息) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/[版本号] Safari/537.36
其中「平台信息」会根据操作系统自动适配（如 Windows NT 10.0、Mac OS X 或 Linux 等）
Safari
| 版本 | 年份 | User-Agent |
|---|---|---|
| Safari 3 | 2007 | Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_4_11; en-us) AppleWebKit/523.10 (KHTML, like Gecko) Version/3.0.4 Safari/523.10 |
| Safari 4 | 2009 | Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_6; en-US) AppleWebKit/530.17 (KHTML, like Gecko) Version/4.0 Safari/530.17 |
| Safari 5 | 2010 | Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_4; en-us) AppleWebKit/533.16 (KHTML, like Gecko) Version/5.0 Safari/533.16 |
| Safari 6 | 2012 | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_0) AppleWebKit/536.25 (KHTML, like Gecko) Version/6.0 Safari/536.25 |
| Safari 7 | 2013 | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9) AppleWebKit/537.71 (KHTML, like Gecko) Version/7.0 Safari/537.71 |
| Safari 8 | 2014 | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10) AppleWebKit/600.1.25 (KHTML, like Gecko) Version/8.0 Safari/600.1.25 |
| Safari 9 | 2015 | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11) AppleWebKit/601.1.56 (KHTML, like Gecko) Version/9.0 Safari/601.1.56 |
| Safari 10 | 2016 | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12) AppleWebKit/602.1.50 (KHTML, like Gecko) Version/10.0 Safari/602.1.50 |
| Safari 11 | 2017 | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/11.0 Safari/604.1.38 |
| Safari 12 | 2018 | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0 Safari/605.1.15 |
| Safari 13 | 2019 | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0 Safari/605.1.15 |
| Safari 14 | 2020 | Mozilla/5.0 (Macintosh; Intel Mac OS X 11_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.121 Safari/537.36 |
| Safari 15 | 2021 | Mozilla/5.0 (Macintosh; Intel Mac OS X 12_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.82 Safari/537.36 |
| Safari 16 | 2022 | Mozilla/5.0 (Macintosh; Intel Mac OS X 13_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.36 |
| Safari 17 | 2023 | Mozilla/5.0 (Macintosh; Intel Mac OS X 14_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.64 Safari/537.36 |
- User-Agent 可能因设备和系统版本略有不同，但格式基本一致。
- Safari 14 及之后的 User-Agent 可能包含 Chrome 版本号（因 WebKit 兼容策略）。
- 在 iOS 设备上，User-Agent 可能还包含
iPhone、iPad等标识。
Mozilla Firefox
| Firefox 版本 | 发布年份 | User-Agent 示例 |
|---|---|---|
| Firefox 50 | 2016 | Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:50.0) Gecko/20100101 Firefox/50.0 |
| Firefox 60 | 2018 | Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0 |
| Firefox 70 | 2019 | Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:70.0) Gecko/20100101 Firefox/70.0 |
| Firefox 80 | 2020 | Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:80.0) Gecko/20100101 Firefox/80.0 |
| Firefox 90 | 2021 | Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 |
| Firefox 100 | 2022 | Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:100.0) Gecko/20100101 Firefox/100.0 |
| Firefox 110 | 2023 | Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:110.0) Gecko/20100101 Firefox/110.0 |
Internet Explorer（IE）
| IE 版本 | 发布年份 | User-Agent 示例 |
|---|---|---|
| IE 6 | 2001 | Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1) |
| IE 7 | 2006 | Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1) |
| IE 8 | 2009 | Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0) |
| IE 9 | 2011 | Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0) |
| IE 10 | 2012 | Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; Trident/6.0) |
| IE 11 | 2013 | Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko |