diff --git a/README.md b/README.md
index 8cecee5..d6f8d48 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,7 @@ flowchart LR
 - Supports regular form configuration to rewrite Path
 - Support HTTP 1/2, including h2c
 - Support static, dns and docker label service discovery
+- Support grpc-web reverse proxy
 - Configuration based on TOML format, the configuration method is very simple, and can be saved to files or etcd
 - Supports more than 10 Prometheus indicators, pull and push mode
 - Opentelemetry supports w3c context trace and jaeger trace
diff --git a/README_zh.md b/README_zh.md
index efa9aab..4892c63 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -19,6 +19,7 @@ flowchart LR
 - 支持正则形式配置重写Path，方便应用按前缀区分转发
 - HTTP 1/2 的全链路支持，包括h2c的支持
 - 支持静态配置、DNS以及docker label的三种服务发现形式
+- 支持grpc-web反向代理
 - 基于TOML格式的配置，配置方式非常简洁，可保存至文件或etcd
 - 支持10多个Prometheus指标，可以使用pull与push的形式收集相关指标
 - Opentelemetry支持w3c context trace与jaeger trace的形式
diff --git a/src/acme/mod.rs b/src/acme/mod.rs
index b8fed1d..7c85126 100644
--- a/src/acme/mod.rs
+++ b/src/acme/mod.rs
@@ -48,7 +48,7 @@ pub enum Error {
 
 type Result<T, E = Error> = std::result::Result<T, E>;
 
-#[derive(Debug, Clone, Default)]
+#[derive(Debug, Clone, Default, Serialize)]
 pub struct CertificateInfo {
     pub not_after: i64,
     pub not_before: i64,
diff --git a/src/acme/validity_checker.rs b/src/acme/validity_checker.rs
index dca0b8e..cd3e26a 100644
--- a/src/acme/validity_checker.rs
+++ b/src/acme/validity_checker.rs
@@ -72,14 +72,16 @@ impl ServiceTask for ValidityChecker {
         None
     }
     fn description(&self) -> String {
-        let certificate_info_list = get_certificate_info_list();
+        let mut names = vec![];
+        for (name, _) in get_certificate_info_list().iter() {
+            if !names.contains(name) {
+                names.push(name.clone());
+            }
+        }
 
         let offset_human: humantime::Duration =
             Duration::from_secs(self.time_offset as u64).into();
-        format!(
-            "ValidityChecker: {offset_human}, {:?}",
-            certificate_info_list
-        )
+        format!("ValidityChecker: {names:?}, {offset_human}")
     }
 }
 
diff --git a/src/plugin/admin.rs b/src/plugin/admin.rs
index 4276719..06af90c 100644
--- a/src/plugin/admin.rs
+++ b/src/plugin/admin.rs
@@ -27,6 +27,7 @@ use crate::config::{
 };
 use crate::http_extra::{HttpResponse, HTTP_HEADER_WWW_AUTHENTICATE};
 use crate::limit::TtlLruLimit;
+use crate::proxy::get_certificate_info_list;
 use crate::state::{
     get_process_system_info, get_processing_accepted, get_start_time,
 };
@@ -45,6 +46,7 @@ use pingora::proxy::Session;
 use rust_embed::EmbeddedFile;
 use rust_embed::RustEmbed;
 use serde::{Deserialize, Serialize};
+use std::collections::HashMap;
 use std::io::Write;
 use std::time::Duration;
 use substring::Substring;
@@ -554,6 +556,14 @@ impl Plugin for AdminServe {
             HttpResponse::try_from_json(&AesResp { value }).unwrap_or(
                 HttpResponse::unknown_error("Json serde fail".into()),
             )
+        } else if path == "/certificates" {
+            let mut infos = HashMap::new();
+            for (name, info) in get_certificate_info_list() {
+                infos.insert(name, info);
+            }
+            HttpResponse::try_from_json(&infos).unwrap_or(
+                HttpResponse::unknown_error("Json serde fail".into()),
+            )
         } else {
             let mut file = path.substring(1, path.len());
             if file.is_empty() {
diff --git a/src/proxy/dynamic_certificate.rs b/src/proxy/dynamic_certificate.rs
index cedc480..6d58e01 100644
--- a/src/proxy/dynamic_certificate.rs
+++ b/src/proxy/dynamic_certificate.rs
@@ -146,6 +146,7 @@ fn parse_certificate(
         domains,
         certificate: Some((cert, key)),
         info: Some(info),
+        ..Default::default()
     })
 }
 
@@ -158,15 +159,16 @@ fn parse_certificates(
     let mut errors = vec![];
     for (name, certificate) in certificate_configs.iter() {
         match parse_certificate(certificate) {
-            Ok(dynamic_cert) => {
-                let mut names = dynamic_cert.domains.clone();
+            Ok(mut dynamic_cert) => {
+                dynamic_cert.name = Some(name.clone());
+                let mut domains = dynamic_cert.domains.clone();
                 let cert = Arc::new(dynamic_cert);
                 if let Some(value) = &certificate.domains {
-                    names =
+                    domains =
                         value.split(',').map(|item| item.to_string()).collect();
                 }
-                for name in names.iter() {
-                    dynamic_certs.insert(name.to_string(), cert.clone());
+                for domain in domains.iter() {
+                    dynamic_certs.insert(domain.to_string(), cert.clone());
                 }
                 let is_default = certificate.is_default.unwrap_or_default();
                 if is_default {
@@ -218,7 +220,12 @@ pub fn get_certificate_info_list() -> Vec<(String, CertificateInfo)> {
     let mut infos = vec![];
     for (name, cert) in DYNAMIC_CERTIFICATE_MAP.load().iter() {
         if let Some(info) = &cert.info {
-            infos.push((name.to_string(), info.clone()));
+            let key = if let Some(name) = &cert.name {
+                name.clone()
+            } else {
+                name.clone()
+            };
+            infos.push((key, info.clone()));
         }
     }
     infos
@@ -226,6 +233,7 @@ pub fn get_certificate_info_list() -> Vec<(String, CertificateInfo)> {
 
 #[derive(Debug, Clone, Default)]
 pub struct DynamicCertificate {
+    name: Option<String>,
     chain_certificate: Option<X509>,
     certificate: Option<(X509, PKey<Private>)>,
     domains: Vec<String>,
diff --git a/web/src/pages/Home.tsx b/web/src/pages/Home.tsx
index 7e6892a..4a9c63b 100644
--- a/web/src/pages/Home.tsx
+++ b/web/src/pages/Home.tsx
@@ -14,6 +14,8 @@ import useBasicState from "@/states/basic";
 import { useI18n } from "@/i18n";
 import { listify } from "radash";
 import { Button } from "@/components/ui/button";
+import { useAsync } from "react-async-hook";
+import React from "react";
 
 interface Summary {
   name: string;
@@ -23,11 +25,41 @@ interface Summary {
 
 export default function Home() {
   const homeI18n = useI18n("home");
-  const [config, initialized] = useConfigState((state) => [
+  const [config, initialized, getCertificateInfos] = useConfigState((state) => [
     state.data,
     state.initialized,
+    state.getCertificateInfos,
   ]);
   const [basicInfo] = useBasicState((state) => [state.data]);
+  const [validity, setValidity] = React.useState({} as Record<string, string>);
+  useAsync(async () => {
+    try {
+      const infos = await getCertificateInfos();
+      const formatDate = (value: number) => {
+        const date = new Date(value * 1000);
+        let month = `${date.getMonth()}`;
+        if (month.length === 1) {
+          month = `0${month}`;
+        }
+        let day = `${date.getDate()}`;
+        if (day.length === 1) {
+          day = `0${day}`;
+        }
+        return `${month}-${day}`;
+      };
+      const results = {} as Record<string, string>;
+      Object.keys(infos).forEach((name) => {
+        const data = infos[name];
+        if (data) {
+          results[name] =
+            formatDate(data.not_before) + " : " + formatDate(data.not_after);
+        }
+      });
+      setValidity(results);
+    } catch (err) {
+      console.error(err);
+    }
+  }, []);
   if (!initialized) {
     return <LoadingPage />;
   }
@@ -120,10 +152,14 @@ export default function Home() {
         ? `${certificateCount} Certificates`
         : `${certificateCount} Certificate`;
     listify(config.certificates, (name, value) => {
+      let date = validity[name] || "";
+      if (date) {
+        date = ` (${date})`;
+      }
       certificateSummary.push({
         name,
         link: `${CERTIFICATES}?name=${name}`,
-        value: value.domains || "",
+        value: (value.domains || "") + date,
       });
     });
   }
diff --git a/web/src/states/config.ts b/web/src/states/config.ts
index 7ecc0c8..c7b1e01 100644
--- a/web/src/states/config.ts
+++ b/web/src/states/config.ts
@@ -2,6 +2,11 @@ import request from "@/helpers/request";
 import { random } from "@/helpers/util";
 import { create } from "zustand";
 
+export interface CertificateInfo {
+  not_after: number;
+  not_before: number;
+}
+
 export interface Upstream {
   addrs: string[];
   discovery?: string;
@@ -158,6 +163,7 @@ interface ConfigState {
   ) => Promise<void>;
   remove: (category: string, name: string) => Promise<void>;
   getIncludeOptions: () => string[];
+  getCertificateInfos: () => Promise<Record<string, CertificateInfo>>;
 }
 
 const useConfigState = create<ConfigState>()((set, get) => ({
@@ -227,6 +233,11 @@ const useConfigState = create<ConfigState>()((set, get) => ({
     });
     return includes;
   },
+  getCertificateInfos: async () => {
+    const { data } =
+      await request.get<Record<string, CertificateInfo>>(`/certificates`);
+    return data;
+  },
 }));
 
 export default useConfigState;