diff --git a/docs/anime.md b/docs/anime.md
index a344f927a..e5c78b45c 100644
--- a/docs/anime.md
+++ b/docs/anime.md
@@ -662,6 +662,12 @@ Sources
 
 ## 禁漫天堂
 
+::: tip 提示
+
+禁漫天堂有多个备用域名，本路由默认使用域名 <https://jmcomic.me>，若该域名无法访问，可以通过在路由最后加上 `?domain=<域名>` 指定路由访问的域名。如指定备用域名为 <https://jmcomic1.me>，则在所有禁漫天堂路由最后加上 `?domain=jmcomic1.me` 即可，此时路由为 [`/18comic?domain=jmcomic1.me`](https://rsshub.app/18comic?domain=jmcomic1.me)
+
+:::
+
 ### 成人 A 漫
 
 <Route author="nczitzk" example="/18comic" path="/18comic/:category?/:time?/:order?/:keyword?" :paramsDesc="['分类，见下表，默认为 `all` 即全部', '时间范围，见下表，默认为 `a` 即全部', '排列顺序，见下表，默认为 `mr` 即最新', '关键字，见下表，默认为空']">
diff --git a/lib/v2/18comic/album.js b/lib/v2/18comic/album.js
index 0c9ea43a0..070597f7a 100644
--- a/lib/v2/18comic/album.js
+++ b/lib/v2/18comic/album.js
@@ -2,10 +2,12 @@ const got = require('@/utils/got');
 const cheerio = require('cheerio');
 const { parseDate } = require('@/utils/parse-date');
 
-const { rootUrl } = require('./utils');
+const { defaultDomain, getRootUrl } = require('./utils');
 
 module.exports = async (ctx) => {
     const id = ctx.params.id;
+    const { domain = defaultDomain } = ctx.query;
+    const rootUrl = getRootUrl(domain, ctx);
 
     const currentUrl = `${rootUrl}/album/${id}`;
 
diff --git a/lib/v2/18comic/blogs.js b/lib/v2/18comic/blogs.js
index 9b341a690..a62f0e671 100644
--- a/lib/v2/18comic/blogs.js
+++ b/lib/v2/18comic/blogs.js
@@ -2,10 +2,12 @@ const got = require('@/utils/got');
 const cheerio = require('cheerio');
 const { parseDate } = require('@/utils/parse-date');
 
-const { rootUrl } = require('./utils');
+const { defaultDomain, getRootUrl } = require('./utils');
 
 module.exports = async (ctx) => {
     const category = ctx.params.category ?? '';
+    const { domain = defaultDomain } = ctx.query;
+    const rootUrl = getRootUrl(domain, ctx);
 
     const currentUrl = `${rootUrl}/blogs${category ? `/${category}` : ''}`;
 
diff --git a/lib/v2/18comic/index.js b/lib/v2/18comic/index.js
index 29aa5dd8b..4d1543c9d 100644
--- a/lib/v2/18comic/index.js
+++ b/lib/v2/18comic/index.js
@@ -1,12 +1,14 @@
-const { rootUrl, ProcessItems } = require('./utils');
+const { defaultDomain, getRootUrl, ProcessItems } = require('./utils');
 
 module.exports = async (ctx) => {
     const category = ctx.params.category ?? 'all';
     const keyword = ctx.params.keyword ?? '';
     const time = ctx.params.time ?? 'a';
     const order = ctx.params.order ?? 'mr';
+    const { domain = defaultDomain } = ctx.query;
+    const rootUrl = getRootUrl(domain, ctx);
 
     const currentUrl = `${rootUrl}/albums${category !== 'all' ? `/${category}` : ''}${keyword ? `?screen=${keyword}` : '?'}${time !== 'a' ? `&t=${time}` : ''}${order !== 'mr' ? `&o=${order}` : ''}`;
 
-    ctx.state.data = await ProcessItems(ctx, currentUrl);
+    ctx.state.data = await ProcessItems(ctx, currentUrl, rootUrl);
 };
diff --git a/lib/v2/18comic/search.js b/lib/v2/18comic/search.js
index dfb537b02..0d5346ae6 100644
--- a/lib/v2/18comic/search.js
+++ b/lib/v2/18comic/search.js
@@ -1,4 +1,4 @@
-const { rootUrl, ProcessItems } = require('./utils');
+const { defaultDomain, getRootUrl, ProcessItems } = require('./utils');
 
 module.exports = async (ctx) => {
     const option = ctx.params.option ?? 'photos';
@@ -6,8 +6,10 @@ module.exports = async (ctx) => {
     const keyword = ctx.params.keyword ?? '';
     const time = ctx.params.time ?? 'a';
     const order = ctx.params.order ?? 'mr';
+    const { domain = defaultDomain } = ctx.query;
+    const rootUrl = getRootUrl(domain, ctx);
 
     const currentUrl = `${rootUrl}/search/${option}${category !== 'all' ? `/${category}` : ''}${keyword ? `?search_query=${keyword}` : '?'}${time !== 'a' ? `&t=${time}` : ''}${order !== 'mr' ? `&o=${order}` : ''}`;
 
-    ctx.state.data = await ProcessItems(ctx, currentUrl);
+    ctx.state.data = await ProcessItems(ctx, currentUrl, rootUrl);
 };
diff --git a/lib/v2/18comic/utils.js b/lib/v2/18comic/utils.js
index 829090d09..0c8071daf 100644
--- a/lib/v2/18comic/utils.js
+++ b/lib/v2/18comic/utils.js
@@ -3,13 +3,24 @@ const cheerio = require('cheerio');
 const { parseDate } = require('@/utils/parse-date');
 const { art } = require('@/utils/render');
 const path = require('path');
+const config = require('@/config').value;
 
-const rootUrl = 'https://jmcomic.me';
-// list of address: https://jmcomic1.bet
+const defaultDomain = 'jmcomic1.me';
+// list of address: https://jmcomic2.bet
+const allowDomain = ['18comic.vip', '18comic.org', 'jmcomic.me', 'jmcomic1.me', 'jm-comic3.art', 'jm-comic.club', 'jm-comic2.ark'];
+
+const getRootUrl = (domain, ctx) => {
+    if (!config.feature.allow_user_supply_unsafe_domain && !allowDomain.includes(domain)) {
+        ctx.throw(403, `This RSS is disabled unless 'ALLOW_USER_SUPPLY_UNSAFE_DOMAIN' is set to 'true'.`);
+    }
+
+    return `https://${domain}`;
+};
 
 module.exports = {
-    rootUrl,
-    ProcessItems: async (ctx, currentUrl) => {
+    defaultDomain,
+    getRootUrl,
+    ProcessItems: async (ctx, currentUrl, rootUrl) => {
         currentUrl = currentUrl.replace(/\?$/, '');
 
         const response = await got(currentUrl);