diff --git a/src/streamlink/plugins/bigo.py b/src/streamlink/plugins/bigo.py
index 98101c78..365d38cd 100644
--- a/src/streamlink/plugins/bigo.py
+++ b/src/streamlink/plugins/bigo.py
@@ -47,7 +47,7 @@ class BigoStream(Stream):
 
 
 class Bigo(Plugin):
-    _url_re = re.compile(r"https?://(live.bigo.tv/\d+|bigoweb.co/show/\d+)")
+    _url_re = re.compile(r"https?://(?:www\.)?(bigo\.tv/\d+|bigoweb\.co/show/\d+)")
     _flashvars_re = flashvars = re.compile(
         r'''^\s*(?<!<!--)<param.*value="tmp=(\d+)&channel=(\d+)&srv=(\d+\.\d+\.\d+\.\d+)&port=(\d+)"''',
         re.M)

bigoweb.co / bigolive.tv plugin no longer works


----

### Checklist

- [x] This is a bug report.
- [ ] This is a plugin request.
- [ ] This is a feature request.
- [ ] I used the search function to find already opened/closed issues or pull requests.

### Description
error: No plugin can handle bigoweb.co addressess as of 10 minutes ago

### Expected / Actual behavior

10 minutes ago it worked fine and now it gives an error.
...

### Reproduction steps / Stream URLs to test

1. ...http://www.bigoweb.co/ (any stream)
2. ...
3. ...

### Environment details (operating system, python version, etc.)

...

### Comments, logs, screenshots, etc.

...

diff --git a/tests/test_plugin_bigo.py b/tests/test_plugin_bigo.py
new file mode 100644
index 00000000..99bd4e17
--- /dev/null
+++ b/tests/test_plugin_bigo.py
@@ -0,0 +1,31 @@
+import unittest
+
+from streamlink.plugins.bigo import Bigo
+
+
+class TestPluginBongacams(unittest.TestCase):
+    def test_can_handle_url(self):
+        # Correct urls
+        self.assertTrue(Bigo.can_handle_url("http://www.bigoweb.co/show/00000000"))
+        self.assertTrue(Bigo.can_handle_url("https://www.bigoweb.co/show/00000000"))
+        self.assertTrue(Bigo.can_handle_url("http://bigoweb.co/show/00000000"))
+        self.assertTrue(Bigo.can_handle_url("https://bigoweb.co/show/00000000"))
+        self.assertTrue(Bigo.can_handle_url("http://bigo.tv/00000000"))
+        self.assertTrue(Bigo.can_handle_url("https://bigo.tv/00000000"))
+        self.assertTrue(Bigo.can_handle_url("https://www.bigo.tv/00000000"))
+        self.assertTrue(Bigo.can_handle_url("http://www.bigo.tv/00000000"))
+
+        # Old URLs don't work anymore
+        self.assertFalse(Bigo.can_handle_url("http://live.bigo.tv/00000000"))
+        self.assertFalse(Bigo.can_handle_url("https://live.bigo.tv/00000000"))
+
+        # Wrong URL structure
+        self.assertFalse(Bigo.can_handle_url("ftp://www.bigo.tv/00000000"))
+        self.assertFalse(Bigo.can_handle_url("https://www.bigo.tv/show/00000000"))
+        self.assertFalse(Bigo.can_handle_url("http://www.bigo.tv/show/00000000"))
+        self.assertFalse(Bigo.can_handle_url("http://bigo.tv/show/00000000"))
+        self.assertFalse(Bigo.can_handle_url("https://bigo.tv/show/00000000"))
+
+
+if __name__ == "__main__":
+    unittest.main()

pip install -e .[dev]
parse_log_pytest
requirements.txt
pytest pytest-cov codecov coverage mock
apt-get update apt-get install -y gcc
3.6
dev-requirements.txt
pytest --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning
attrs==22.2.0
certifi==2021.5.30
charset-normalizer==2.0.12
codecov==2.1.13
coverage==6.2
distlib==0.3.9
idna==3.10
importlib-metadata==4.8.3
iniconfig==1.1.1
iso-639==0.4.5
iso3166==2.1.1
Jinja2==3.0.3
MarkupSafe==2.0.1
mock==5.2.0
packaging==21.3
pluggy==1.0.0
py==1.11.0
pycryptodome==3.21.0
pynsist==2.8
pyparsing==3.1.4
pytest==7.0.1
pytest-cov==4.0.0
requests==2.27.1
requests_download==0.1.2
-e git+https://github.com/streamlink/streamlink.git@951edb3ef8127598ec518e5ebab7dedf5e00f68c#egg=streamlink
tomli==1.2.3
typing_extensions==4.1.1
urllib3==1.26.20
yarg==0.1.10
zipp==3.6.0

name: streamlink
channels:
  - defaults
  - https://repo.anaconda.com/pkgs/main
  - https://repo.anaconda.com/pkgs/r
  - conda-forge
dependencies:
  - _libgcc_mutex=0.1=main
  - _openmp_mutex=5.1=1_gnu
  - ca-certificates=2025.2.25=h06a4308_0
  - certifi=2021.5.30=py36h06a4308_0
  - ld_impl_linux-64=2.40=h12ee557_0
  - libffi=3.3=he6710b0_2
  - libgcc-ng=11.2.0=h1234567_1
  - libgomp=11.2.0=h1234567_1
  - libstdcxx-ng=11.2.0=h1234567_1
  - ncurses=6.4=h6a678d5_0
  - openssl=1.1.1w=h7f8727e_0
  - pip=21.2.2=py36h06a4308_0
  - python=3.6.13=h12debd9_1
  - readline=8.2=h5eee18b_0
  - setuptools=58.0.4=py36h06a4308_0
  - sqlite=3.45.3=h5eee18b_0
  - tk=8.6.14=h39e8969_0
  - wheel=0.37.1=pyhd3eb1b0_0
  - xz=5.6.4=h5eee18b_1
  - zlib=1.2.13=h5eee18b_1
  - pip:
      - attrs==22.2.0
      - charset-normalizer==2.0.12
      - codecov==2.1.13
      - coverage==6.2
      - distlib==0.3.9
      - idna==3.10
      - importlib-metadata==4.8.3
      - iniconfig==1.1.1
      - iso-639==0.4.5
      - iso3166==2.1.1
      - jinja2==3.0.3
      - markupsafe==2.0.1
      - mock==5.2.0
      - packaging==21.3
      - pluggy==1.0.0
      - py==1.11.0
      - pycryptodome==3.21.0
      - pynsist==2.8
      - pyparsing==3.1.4
      - pytest==7.0.1
      - pytest-cov==4.0.0
      - requests==2.27.1
      - requests-download==0.1.2
      - tomli==1.2.3
      - typing-extensions==4.1.1
      - urllib3==1.26.20
      - yarg==0.1.10
      - zipp==3.6.0
prefix: /opt/conda/envs/streamlink

tests/test_plugin_bigo.py::TestPluginBongacams::test_can_handle_url
src/streamlink/plugins/bigo.py
src/streamlink/plugins/bigo.py