diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4307efa..ac9a274 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,14 @@
 
 All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
 
+### [3.1.1](https://github.com/allohamora/chepi-front/compare/v3.1.0...v3.1.1) (2022-03-18)
+
+### Bug Fixes
+
+- add language to comparison share url ([66b66f2](https://github.com/allohamora/chepi-front/commits/66b66f214a169e9092ab9f60ff576b87f39db200))
+- fix pizza seo title and description ([9f9eaaa](https://github.com/allohamora/chepi-front/commits/9f9eaaa12395fa953be6f75dd3d2b7f1e80eb28a))
+- normalize comparison query ids ([cf5b6d6](https://github.com/allohamora/chepi-front/commits/cf5b6d669be53fb500d8390904b9842a0df72b20))
+
 ## [3.1.0](https://github.com/allohamora/chepi-front/compare/v3.0.0...v3.1.0) (2022-03-17)
 
 ### Features
diff --git a/package-lock.json b/package-lock.json
index 0df3e52..a78acab 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "chepi-front",
-  "version": "3.1.0",
+  "version": "3.1.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "chepi-front",
-      "version": "3.1.0",
+      "version": "3.1.1",
       "license": "MIT",
       "dependencies": {
         "@ant-design/icons": "^4.7.0",
diff --git a/package.json b/package.json
index ecf0675..4cf1ac1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "chepi-front",
-  "version": "3.1.0",
+  "version": "3.1.1",
   "description": "front-end for chepi",
   "author": "https://github.com/allohamora",
   "private": true,
diff --git a/src/views/Comparison/ComparisonContent.tsx b/src/views/Comparison/ComparisonContent.tsx
index fcb4028..9ceb908 100644
--- a/src/views/Comparison/ComparisonContent.tsx
+++ b/src/views/Comparison/ComparisonContent.tsx
@@ -96,10 +96,10 @@ export const ComparisonContent: FC<Props> = ({ pizzasIds, removePizzas, isReady,
   };
 
   const shareHandler = async () => {
-    const searchParams = new URLSearchParams([['isUrl', '1'], ...pizzasIds.map((id) => [id, '1'])]);
+    const searchParams = new URLSearchParams([['isExternal', '1'], ...pizzasIds.map((id) => ['ids', id])]);
     const query = searchParams.toString();
 
-    await navigator.clipboard.writeText(join(basePath, `/comparison?${query}`));
+    await navigator.clipboard.writeText(join(basePath, `${language}/comparison?${query}`));
 
     notification.open({
       message: t('copied'),
diff --git a/src/views/Comparison/index.tsx b/src/views/Comparison/index.tsx
index 168b5e1..2c2c81c 100644
--- a/src/views/Comparison/index.tsx
+++ b/src/views/Comparison/index.tsx
@@ -1,26 +1,30 @@
 import { FC } from 'react';
 import { useRouter } from 'next/router';
 import { useComparison } from 'src/providers/ComparisonProvider';
+import { useConfig } from 'src/providers/ConfigProvider';
 import { ComparisonContent } from './ComparisonContent';
 
 export const Comparison: FC = () => {
   const router = useRouter();
   const {
-    query: { isUrl, ...query },
+    query: { isExternal, ids: queryIds },
   } = router;
   const comparison = useComparison();
+  const {
+    config: { language },
+  } = useConfig();
 
-  const queryPizzasIds = Object.keys(query);
-  const isUrlVariant = isUrl === '1';
+  const queryPizzasIds = (typeof queryIds === 'string' ? [queryIds] : queryIds) ?? [];
+  const isExternalVariant = isExternal === '1';
 
   const urlRemovePizzas = (...ids: string[]) => {
     const newIds = queryPizzasIds.filter((id) => !ids.includes(id));
-    const urlSearchParams = new URLSearchParams([['isUrl', '1'], ...newIds.map((id) => [id, '1'])]);
+    const urlSearchParams = new URLSearchParams([['isExternal', '1'], ...newIds.map((id) => ['ids', id])]);
 
-    router.replace(`/comparison?${urlSearchParams.toString()}`);
+    router.replace(`${language}/comparison?${urlSearchParams.toString()}`);
   };
 
-  if (isUrlVariant) {
+  if (isExternalVariant) {
     return <ComparisonContent pizzasIds={queryPizzasIds} removePizzas={urlRemovePizzas} isReady type="external" />;
   }
 
diff --git a/src/views/Pizza/index.tsx b/src/views/Pizza/index.tsx
index 4051967..c9028d5 100644
--- a/src/views/Pizza/index.tsx
+++ b/src/views/Pizza/index.tsx
@@ -40,10 +40,12 @@ export const Pizza: FC = () => {
   const titleKey = `${lang as Lang}_title` as const;
   const title = data?.[titleKey];
 
+  const titleText = createTitleText(title as string, data?.size ?? null, tValue('cm'));
+
   const descriptionKey = `${lang as Lang}_description` as const;
   const description = data?.[descriptionKey];
 
-  const seo = <Seo title={title ?? t('loading')} description={description ?? t('loading')} />;
+  const seo = <Seo title={titleText ?? t('loading')} description={description ?? t('loading')} />;
 
   if (isLoading) {
     return (
@@ -68,7 +70,7 @@ export const Pizza: FC = () => {
     );
   }
 
-  const { country, city, lang: pizzaLang, image, link, price, size, weight, historyOfChanges } = data as PizzaType;
+  const { country, city, lang: pizzaLang, image, link, price, weight, historyOfChanges } = data as PizzaType;
 
   const getChangeTitle = (key: string) => {
     if (key === titleKey) {
@@ -98,7 +100,6 @@ export const Pizza: FC = () => {
         detectedAt: change.detectedAt,
       })) ?? [];
 
-  const titleText = createTitleText(title as string, size, tValue('cm'));
   const weightText = createWeightText(weight, tValue('gram'));
   const pirceText = createPriceText(price, tValue('uah'));