diff --git a/hyperglass/models/config/web.py b/hyperglass/models/config/web.py
index 29bdaff..4704f00 100644
--- a/hyperglass/models/config/web.py
+++ b/hyperglass/models/config/web.py
@@ -36,31 +36,6 @@ Side = constr(regex=r"left|right")
 LocationDisplayMode = t.Literal["auto", "dropdown", "gallery"]
 
 
-class Analytics(HyperglassModel):
-    """Validation model for Google Analytics."""
-
-    enable: StrictBool = False
-    id: t.Optional[StrictStr]
-
-    @validator("id")
-    def validate_id(cls, value, values):
-        """Ensure ID is set if analytics is enabled.
-
-        Arguments:
-            value {str|None} -- Google Analytics ID
-            values {[type]} -- Already-validated model parameters
-
-        Raises:
-            ValueError: Raised if analytics is enabled but no ID is set.
-
-        Returns:
-            {str|None} -- Google Analytics ID if enabled.
-        """
-        if values["enable"] and value is None:
-            raise ValueError("Analytics is enabled, but no ID is set.")
-        return value
-
-
 class Credit(HyperglassModel):
     """Validation model for developer credit."""
 
@@ -270,6 +245,8 @@ class Web(HyperglassModel):
     text: Text = Text()
     theme: Theme = Theme()
     location_display_mode: LocationDisplayMode = "auto"
+    custom_javascript: t.Optional[FilePath]
+    custom_html: t.Optional[FilePath]
 
 
 class WebPublic(Web):
diff --git a/hyperglass/ui/.eslintignore b/hyperglass/ui/.eslintignore
index 4c7afc3..e06f250 100644
--- a/hyperglass/ui/.eslintignore
+++ b/hyperglass/ui/.eslintignore
@@ -2,3 +2,4 @@ node_modules
 dist
 .next/
 favicon-formats.ts
+custom.*[js, html]
diff --git a/hyperglass/ui/.gitignore b/hyperglass/ui/.gitignore
index 4a9306a..3e347d9 100644
--- a/hyperglass/ui/.gitignore
+++ b/hyperglass/ui/.gitignore
@@ -1,5 +1,6 @@
 .DS_Store
 .env*
+custom.*[js, html]
 *.tsbuildinfo
 # dev/test files
 TODO.txt
diff --git a/hyperglass/ui/.prettierignore b/hyperglass/ui/.prettierignore
index 6b48447..fc2cfe7 100644
--- a/hyperglass/ui/.prettierignore
+++ b/hyperglass/ui/.prettierignore
@@ -7,3 +7,4 @@ package-lock.json
 tsconfig.json
 .next/
 favicon-formats.ts
+custom.*[js, html]
diff --git a/hyperglass/ui/components/custom.tsx b/hyperglass/ui/components/custom.tsx
new file mode 100644
index 0000000..e012d54
--- /dev/null
+++ b/hyperglass/ui/components/custom.tsx
@@ -0,0 +1,25 @@
+/**
+ * Render a generic script tag in the `<head/>` that contains any custom-defined Javascript, if
+ * defined. It no custom JS is defined, an empty fragment is rendered, which will not appear in
+ * the DOM.
+ */
+export const CustomJavascript = (props: React.PropsWithChildren<Dict>): JSX.Element => {
+  const { children } = props;
+  if (typeof children === 'string' && children !== '') {
+    return <script id="custom-javascript" dangerouslySetInnerHTML={{ __html: children }} />;
+  }
+  return <></>;
+};
+
+/**
+ * Render a generic div outside of the main application that contains any custom-defined HTML, if
+ * defined. If no custom HTML is defined, an empty fragment is rendered, which will not appear in
+ * the DOM.
+ */
+export const CustomHtml = (props: React.PropsWithChildren<Dict>): JSX.Element => {
+  const { children } = props;
+  if (typeof children === 'string' && children !== '') {
+    return <div id="custom-html" dangerouslySetInnerHTML={{ __html: children }} />;
+  }
+  return <></>;
+};
diff --git a/hyperglass/ui/components/index.ts b/hyperglass/ui/components/index.ts
index ee7d018..4084e00 100644
--- a/hyperglass/ui/components/index.ts
+++ b/hyperglass/ui/components/index.ts
@@ -1,6 +1,7 @@
 export * from './card';
 export * from './codeBlock';
 export * from './countdown';
+export * from './custom';
 export * from './debugger';
 export * from './favicon';
 export * from './footer';
diff --git a/hyperglass/ui/components/layout/frame.tsx b/hyperglass/ui/components/layout/frame.tsx
index 17e66f3..e6e8502 100644
--- a/hyperglass/ui/components/layout/frame.tsx
+++ b/hyperglass/ui/components/layout/frame.tsx
@@ -1,23 +1,19 @@
-import { useCallback, useEffect, useRef } from 'react';
-import { useRouter } from 'next/router';
+import { useCallback, useRef } from 'react';
 import { Flex } from '@chakra-ui/react';
 import { isSafari } from 'react-device-detect';
 import { If, Debugger, Greeting, Footer, Header } from '~/components';
 import { useConfig } from '~/context';
-import { useGoogleAnalytics, useFormState } from '~/hooks';
+import { useFormState } from '~/hooks';
 import { ResetButton } from './resetButton';
 
 import type { TFrame } from './types';
 
 export const Frame = (props: TFrame): JSX.Element => {
-  const router = useRouter();
-  const { developerMode, googleAnalytics } = useConfig();
+  const { developerMode } = useConfig();
   const { setStatus, reset } = useFormState(
     useCallback(({ setStatus, reset }) => ({ setStatus, reset }), []),
   );
 
-  const { initialize, trackPage } = useGoogleAnalytics();
-
   const containerRef = useRef<HTMLDivElement>({} as HTMLDivElement);
 
   function handleReset(): void {
@@ -26,15 +22,6 @@ export const Frame = (props: TFrame): JSX.Element => {
     reset();
   }
 
-  useEffect(() => {
-    initialize(googleAnalytics, developerMode);
-    // eslint-disable-next-line react-hooks/exhaustive-deps
-  }, []);
-
-  useEffect(() => {
-    trackPage(router.pathname);
-  }, [router.pathname, trackPage]);
-
   return (
     <>
       <Flex
diff --git a/hyperglass/ui/hooks/index.ts b/hyperglass/ui/hooks/index.ts
index 9e51677..bebe080 100644
--- a/hyperglass/ui/hooks/index.ts
+++ b/hyperglass/ui/hooks/index.ts
@@ -4,7 +4,6 @@ export * from './useDevice';
 export * from './useDirective';
 export * from './useDNSQuery';
 export * from './useFormState';
-export * from './useGoogleAnalytics';
 export * from './useGreeting';
 export * from './useHyperglassConfig';
 export * from './useLGQuery';
diff --git a/hyperglass/ui/hooks/useDNSQuery.ts b/hyperglass/ui/hooks/useDNSQuery.ts
index 20bb60e..9adf70b 100644
--- a/hyperglass/ui/hooks/useDNSQuery.ts
+++ b/hyperglass/ui/hooks/useDNSQuery.ts
@@ -1,7 +1,6 @@
 import { useQuery } from 'react-query';
 import { useConfig } from '~/context';
 import { fetchWithTimeout } from '~/util';
-import { useGoogleAnalytics } from './useGoogleAnalytics';
 
 import type { QueryFunction, QueryFunctionContext, QueryObserverResult } from 'react-query';
 import type { DnsOverHttps } from '~/types';
@@ -52,11 +51,6 @@ export function useDNSQuery(
   family: 4 | 6,
 ): QueryObserverResult<DnsOverHttps.Response> {
   const { cache, web } = useConfig();
-  const { trackEvent } = useGoogleAnalytics();
-
-  if (typeof target === 'string') {
-    trackEvent({ category: 'DNS', action: 'Query', label: target, dimension1: `IPv${family}` });
-  }
 
   return useQuery<DnsOverHttps.Response, unknown, DnsOverHttps.Response, DNSQueryKey>({
     queryKey: [web.dnsProvider.url, { target, family }],
diff --git a/hyperglass/ui/hooks/useGoogleAnalytics.tsx b/hyperglass/ui/hooks/useGoogleAnalytics.tsx
deleted file mode 100644
index 13c90d2..0000000
--- a/hyperglass/ui/hooks/useGoogleAnalytics.tsx
+++ /dev/null
@@ -1,110 +0,0 @@
-import create from 'zustand';
-import { useCallback } from 'react';
-import * as ReactGA from 'react-ga';
-
-import type { GAEffect, GAReturn } from './types';
-
-interface EnabledState {
-  enabled: boolean;
-  enable(): void;
-  disable(): void;
-}
-
-const useEnabled = create<EnabledState>(set => ({
-  enabled: false,
-  enable() {
-    set({ enabled: true });
-  },
-  disable() {
-    set({ enabled: false });
-  },
-}));
-
-export function useGoogleAnalytics(): GAReturn {
-  const { enabled, enable } = useEnabled(({ enable, enabled }) => ({ enable, enabled }));
-
-  const runEffect = useCallback(
-    (effect: GAEffect): void => {
-      if (typeof window !== 'undefined' && enabled) {
-        if (typeof effect === 'function') {
-          effect(ReactGA);
-        }
-      }
-    },
-    [enabled],
-  );
-
-  const trackEvent = useCallback(
-    (e: ReactGA.EventArgs) => {
-      runEffect(ga => {
-        if (process.env.NODE_ENV === 'production') {
-          ga.event(e);
-        } else {
-          console.log(
-            `%cEvent %c${JSON.stringify(e)}`,
-            'background: green; color: black; padding: 0.5rem; font-size: 0.75rem;',
-            'background: black; color: green; padding: 0.5rem; font-size: 0.75rem; font-weight: bold;',
-          );
-        }
-      });
-    },
-    [runEffect],
-  );
-
-  const trackPage = useCallback(
-    (path: string) => {
-      runEffect(ga => {
-        if (process.env.NODE_ENV === 'production') {
-          ga.pageview(path);
-        } else {
-          console.log(
-            `%cPage View %c${path}`,
-            'background: blue; color: white; padding: 0.5rem; font-size: 0.75rem;',
-            'background: white; color: blue; padding: 0.5rem; font-size: 0.75rem; font-weight: bold;',
-          );
-        }
-      });
-    },
-    [runEffect],
-  );
-
-  const trackModal = useCallback(
-    (path: string) => {
-      runEffect(ga => {
-        if (process.env.NODE_ENV === 'production') {
-          ga.modalview(path);
-        } else {
-          console.log(
-            `%cModal View %c${path}`,
-            'background: red; color: white; padding: 0.5rem; font-size: 0.75rem;',
-            'background: white; color: red; padding: 0.5rem; font-size: 0.75rem; font-weight: bold;',
-          );
-        }
-      });
-    },
-    [runEffect],
-  );
-
-  const initialize = useCallback(
-    (trackingId: string, debug: boolean) => {
-      if (typeof trackingId !== 'string') {
-        return;
-      }
-
-      enable();
-
-      const initializeOpts = { titleCase: false } as ReactGA.InitializeOptions;
-
-      if (debug) {
-        initializeOpts.debug = true;
-      }
-
-      runEffect(ga => {
-        ga.initialize(trackingId, initializeOpts);
-      });
-    },
-    [runEffect, enable],
-  );
-
-  return { trackEvent, trackModal, trackPage, initialize, ga: ReactGA };
-}
diff --git a/hyperglass/ui/hooks/useLGQuery.ts b/hyperglass/ui/hooks/useLGQuery.ts
index 48a886f..b478407 100644
--- a/hyperglass/ui/hooks/useLGQuery.ts
+++ b/hyperglass/ui/hooks/useLGQuery.ts
@@ -1,7 +1,6 @@
 import { useEffect, useMemo } from 'react';
 import { useQuery } from 'react-query';
 import { useConfig } from '~/context';
-import { useGoogleAnalytics } from './useGoogleAnalytics';
 import { fetchWithTimeout } from '~/util';
 
 import type { QueryFunction, QueryFunctionContext, QueryObserverResult } from 'react-query';
@@ -18,16 +17,6 @@ export function useLGQuery(
   const { requestTimeout, cache } = useConfig();
   const controller = useMemo(() => new AbortController(), []);
 
-  const { trackEvent } = useGoogleAnalytics();
-
-  trackEvent({
-    category: 'Query',
-    action: 'submit',
-    dimension1: query.queryLocation,
-    dimension2: query.queryTarget,
-    dimension3: query.queryType,
-  });
-
   const runQuery: QueryFunction<QueryResponse, LGQueryKey> = async (
     ctx: QueryFunctionContext<LGQueryKey>,
   ): Promise<QueryResponse> => {
diff --git a/hyperglass/ui/pages/_document.tsx b/hyperglass/ui/pages/_document.tsx
index 5949556..8865bde 100644
--- a/hyperglass/ui/pages/_document.tsx
+++ b/hyperglass/ui/pages/_document.tsx
@@ -1,13 +1,21 @@
+import fs from 'fs';
 import Document, { Html, Head, Main, NextScript } from 'next/document';
-import { Favicon } from '~/components';
+import { Favicon, CustomJavascript, CustomHtml } from '~/components';
 import favicons from '../favicon-formats';
 
 import type { DocumentContext, DocumentInitialProps } from 'next/document';
 
-class MyDocument extends Document {
-  static async getInitialProps(ctx: DocumentContext): Promise<DocumentInitialProps> {
+interface DocumentExtra extends DocumentInitialProps {
+  customJs: string;
+  customHtml: string;
+}
+
+class MyDocument extends Document<DocumentExtra> {
+  static async getInitialProps(ctx: DocumentContext): Promise<DocumentExtra> {
     const initialProps = await Document.getInitialProps(ctx);
-    return { ...initialProps };
+    const customJs = fs.readFileSync('custom.js').toString();
+    const customHtml = fs.readFileSync('custom.html').toString();
+    return { customJs, customHtml, ...initialProps };
   }
 
   render(): JSX.Element {
@@ -31,9 +39,11 @@ class MyDocument extends Document {
           {favicons.map((favicon, idx) => (
             <Favicon key={idx} {...favicon} />
           ))}
+          <CustomJavascript>{this.props.customJs}</CustomJavascript>
         </Head>
         <body>
           <Main />
+          <CustomHtml>{this.props.customHtml}</CustomHtml>
           <NextScript />
         </body>
       </Html>
diff --git a/hyperglass/ui/types/config.ts b/hyperglass/ui/types/config.ts
index 3f0da36..651af93 100644
--- a/hyperglass/ui/types/config.ts
+++ b/hyperglass/ui/types/config.ts
@@ -172,7 +172,6 @@ interface _ConfigShallow {
   primary_asn: string;
   request_timeout: number;
   org_name: string;
-  google_analytics: string | null;
   site_title: string;
   site_keywords: string[];
   site_description: string;
diff --git a/hyperglass/util/frontend.py b/hyperglass/util/frontend.py
index 8134f28..9f5c386 100644
--- a/hyperglass/util/frontend.py
+++ b/hyperglass/util/frontend.py
@@ -259,6 +259,25 @@ def write_favicon_formats(formats: t.Tuple[t.Dict[str, t.Any]]) -> None:
     file.write_text(data)
 
 
+def write_custom_files(params: "UIParameters") -> None:
+    """Write custom files to the `ui` directory so they can be imported and rendered."""
+    js = Path(__file__).parent.parent / "ui" / "custom.js"
+    html = Path(__file__).parent.parent / "ui" / "custom.html"
+
+    # Handle Custom JS.
+    if params.web.custom_javascript is not None:
+        copyfiles((params.web.custom_javascript,), (js,))
+    else:
+        with js.open("w") as f:
+            f.write("")
+    # Handle Custom HTML.
+    if params.web.custom_html is not None:
+        copyfiles((params.web.custom_html,), (html,))
+    else:
+        with html.open("w") as f:
+            f.write("")
+
+
 async def build_frontend(  # noqa: C901
     dev_mode: bool,
     dev_url: str,
@@ -370,6 +389,8 @@ async def build_frontend(  # noqa: C901
 
     migrate_images(app_path, params)
 
+    write_custom_files(params)
+
     generate_opengraph(
         params.web.opengraph.image,
         1200,