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index 3a57336..e73bab0 100644
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+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Generic abstractions related to HTTP clients",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "abstractions",
+                "contracts",
+                "decoupling",
+                "interfaces",
+                "interoperability",
+                "standards"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/http-client-contracts/tree/v3.1.1"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2022-04-22T07:30:54+00:00"
+        },
+        {
+            "name": "symfony/http-foundation",
+            "version": "v6.2.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/http-foundation.git",
+                "reference": "ddf4dd35de1623e7c02013523e6c2137b67b636f"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/http-foundation/zipball/ddf4dd35de1623e7c02013523e6c2137b67b636f",
+                "reference": "ddf4dd35de1623e7c02013523e6c2137b67b636f",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.1",
+                "symfony/deprecation-contracts": "^2.1|^3",
+                "symfony/polyfill-mbstring": "~1.1"
+            },
+            "conflict": {
+                "symfony/cache": "<6.2"
+            },
+            "require-dev": {
+                "predis/predis": "~1.0",
+                "symfony/cache": "^5.4|^6.0",
+                "symfony/dependency-injection": "^5.4|^6.0",
+                "symfony/expression-language": "^5.4|^6.0",
+                "symfony/http-kernel": "^5.4.12|^6.0.12|^6.1.4",
+                "symfony/mime": "^5.4|^6.0",
+                "symfony/rate-limiter": "^5.2|^6.0"
+            },
+            "suggest": {
+                "symfony/mime": "To use the file extension guesser"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\HttpFoundation\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Defines an object-oriented layer for the HTTP specification",
+            "homepage": "https://symfony.com",
+            "support": {
+                "source": "https://github.com/symfony/http-foundation/tree/v6.2.2"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2022-12-14T16:11:27+00:00"
+        },
+        {
+            "name": "symfony/http-kernel",
+            "version": "v6.2.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/http-kernel.git",
+                "reference": "860a0189969b755cd571709bd32313aa8599867a"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/http-kernel/zipball/860a0189969b755cd571709bd32313aa8599867a",
+                "reference": "860a0189969b755cd571709bd32313aa8599867a",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.1",
+                "psr/log": "^1|^2|^3",
+                "symfony/deprecation-contracts": "^2.1|^3",
+                "symfony/error-handler": "^6.1",
+                "symfony/event-dispatcher": "^5.4|^6.0",
+                "symfony/http-foundation": "^5.4|^6.0",
+                "symfony/polyfill-ctype": "^1.8"
+            },
+            "conflict": {
+                "symfony/browser-kit": "<5.4",
+                "symfony/cache": "<5.4",
+                "symfony/config": "<6.1",
+                "symfony/console": "<5.4",
+                "symfony/dependency-injection": "<6.2",
+                "symfony/doctrine-bridge": "<5.4",
+                "symfony/form": "<5.4",
+                "symfony/http-client": "<5.4",
+                "symfony/mailer": "<5.4",
+                "symfony/messenger": "<5.4",
+                "symfony/translation": "<5.4",
+                "symfony/twig-bridge": "<5.4",
+                "symfony/validator": "<5.4",
+                "twig/twig": "<2.13"
+            },
+            "provide": {
+                "psr/log-implementation": "1.0|2.0|3.0"
+            },
+            "require-dev": {
+                "psr/cache": "^1.0|^2.0|^3.0",
+                "symfony/browser-kit": "^5.4|^6.0",
+                "symfony/config": "^6.1",
+                "symfony/console": "^5.4|^6.0",
+                "symfony/css-selector": "^5.4|^6.0",
+                "symfony/dependency-injection": "^6.2",
+                "symfony/dom-crawler": "^5.4|^6.0",
+                "symfony/expression-language": "^5.4|^6.0",
+                "symfony/finder": "^5.4|^6.0",
+                "symfony/http-client-contracts": "^1.1|^2|^3",
+                "symfony/process": "^5.4|^6.0",
+                "symfony/routing": "^5.4|^6.0",
+                "symfony/stopwatch": "^5.4|^6.0",
+                "symfony/translation": "^5.4|^6.0",
+                "symfony/translation-contracts": "^1.1|^2|^3",
+                "symfony/uid": "^5.4|^6.0",
+                "twig/twig": "^2.13|^3.0.4"
+            },
+            "suggest": {
+                "symfony/browser-kit": "",
+                "symfony/config": "",
+                "symfony/console": "",
+                "symfony/dependency-injection": ""
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\HttpKernel\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Provides a structured process for converting a Request into a Response",
+            "homepage": "https://symfony.com",
+            "support": {
+                "source": "https://github.com/symfony/http-kernel/tree/v6.2.2"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2022-12-16T19:38:34+00:00"
+        },
+        {
+            "name": "symfony/polyfill-ctype",
+            "version": "v1.27.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-ctype.git",
+                "reference": "5bbc823adecdae860bb64756d639ecfec17b050a"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/5bbc823adecdae860bb64756d639ecfec17b050a",
+                "reference": "5bbc823adecdae860bb64756d639ecfec17b050a",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "provide": {
+                "ext-ctype": "*"
+            },
+            "suggest": {
+                "ext-ctype": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "1.27-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Ctype\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Gert de Pagter",
+                    "email": "BackEndTea@gmail.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for ctype functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "ctype",
+                "polyfill",
+                "portable"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-ctype/tree/v1.27.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2022-11-03T14:55:06+00:00"
+        },
+        {
+            "name": "symfony/polyfill-mbstring",
+            "version": "v1.27.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-mbstring.git",
+                "reference": "8ad114f6b39e2c98a8b0e3bd907732c207c2b534"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/8ad114f6b39e2c98a8b0e3bd907732c207c2b534",
+                "reference": "8ad114f6b39e2c98a8b0e3bd907732c207c2b534",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "provide": {
+                "ext-mbstring": "*"
+            },
+            "suggest": {
+                "ext-mbstring": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "1.27-dev"
+                },
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Mbstring\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for the Mbstring extension",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "mbstring",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-mbstring/tree/v1.27.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2022-11-03T14:55:06+00:00"
+        },
+        {
+            "name": "symfony/service-contracts",
+            "version": "v3.2.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/service-contracts.git",
+                "reference": "aac98028c69df04ee77eb69b96b86ee51fbf4b75"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/service-contracts/zipball/aac98028c69df04ee77eb69b96b86ee51fbf4b75",
+                "reference": "aac98028c69df04ee77eb69b96b86ee51fbf4b75",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.1",
+                "psr/container": "^2.0"
+            },
+            "conflict": {
+                "ext-psr": "<1.1|>=2"
+            },
+            "suggest": {
+                "symfony/service-implementation": ""
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "3.3-dev"
+                },
+                "thanks": {
+                    "name": "symfony/contracts",
+                    "url": "https://github.com/symfony/contracts"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Contracts\\Service\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Test/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Generic abstractions related to writing services",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "abstractions",
+                "contracts",
+                "decoupling",
+                "interfaces",
+                "interoperability",
+                "standards"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/service-contracts/tree/v3.2.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2022-11-25T10:21:52+00:00"
+        },
+        {
+            "name": "symfony/var-dumper",
+            "version": "v6.2.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/var-dumper.git",
+                "reference": "6168f544827e897f708a684f75072a8c33a5e309"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/var-dumper/zipball/6168f544827e897f708a684f75072a8c33a5e309",
+                "reference": "6168f544827e897f708a684f75072a8c33a5e309",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.1",
+                "symfony/polyfill-mbstring": "~1.0"
+            },
+            "conflict": {
+                "phpunit/phpunit": "<5.4.3",
+                "symfony/console": "<5.4"
+            },
+            "require-dev": {
+                "ext-iconv": "*",
+                "symfony/console": "^5.4|^6.0",
+                "symfony/process": "^5.4|^6.0",
+                "symfony/uid": "^5.4|^6.0",
+                "twig/twig": "^2.13|^3.0.4"
+            },
+            "suggest": {
+                "ext-iconv": "To convert non-UTF-8 strings to UTF-8 (or symfony/polyfill-iconv in case ext-iconv cannot be used).",
+                "ext-intl": "To show region name in time zone dump",
+                "symfony/console": "To use the ServerDumpCommand and/or the bin/var-dump-server script"
+            },
+            "bin": [
+                "Resources/bin/var-dump-server"
+            ],
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "Resources/functions/dump.php"
+                ],
+                "psr-4": {
+                    "Symfony\\Component\\VarDumper\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Provides mechanisms for walking through any arbitrary PHP variable",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "debug",
+                "dump"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/var-dumper/tree/v6.2.2"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2022-12-14T16:11:27+00:00"
         }
     ],
     "packages-dev": [],
diff --git a/index.php b/index.php
index e588423..feaf983 100644
--- a/index.php
+++ b/index.php
@@ -1,9 +1,17 @@
 <?php
 require_once 'vendor/autoload.php';
 use ICal\ICal;
+use Symfony\Component\HttpClient\CachingHttpClient;
+use Symfony\Component\HttpClient\HttpClient;
+use Symfony\Component\HttpKernel\HttpCache\Store;
+
+$store = new Store('/tmp/dorf.jetzt/');
+$client = HttpClient::create();
+$client = new CachingHttpClient($client, $store, array('default_ttl' => 60, 'allow_revalidate' => true));
+
 static $DATE_FORMAT = 'd.m.Y H:i';
 static $VISITORS_FILE = '/opt/dorf.jetzt_visitors';
-static $DORF_IN_LOCKDOWN = true;
+static $DORF_IN_LOCKDOWN = false;
 static $DORF_VIRTUAL_EVENTS = true;
 static $ICAL_URL = 'https://chaosdorf.de/~derf/cccd_all.ics';
 $state_map = array(
@@ -50,23 +58,27 @@ $hash_to_state = array(
 	'0' => 'error',
 );
 if ($DORF_VIRTUAL_EVENTS || ! $DORF_IN_LOCKDOWN){
-$img = file_get_contents('https://chaosdorf.de/raumstatus/status.png');
-$hash = md5($img);
-$state = $hash_to_state[$hash];
-$ical = new ICal(false, array(
-		'defaultSpan' => 2,
-		'defaultTimeZone' => 'Europe/Berlin',
-		'defaultWeekStart' => 'MO',
-		'filterDaysBefore' => '1',
-	));
-$ical->initUrl($ICAL_URL, $acceptLanguage = 'de');
-$events = $ical->eventsFromInterval('2 week');
-$first_event = $events[0];
-$events = array_slice($events, 1);
-if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])){
-	$locale = locale_accept_from_http($_SERVER['HTTP_ACCEPT_LANGUAGE']);
-	setlocale(LC_TIME, $locale);
-}
+	try {
+		$response = $client->request('GET', 'https://chaosdorf.de/raumstatus/status.png');
+		$hash = md5($response->getContent());	
+	} catch (\Exception $e){
+		$hash = 0;
+	}
+	$state = $hash_to_state[$hash];
+	$ical = new ICal(false, array(
+			'defaultSpan' => 2,
+			'defaultTimeZone' => 'Europe/Berlin',
+			'defaultWeekStart' => 'MO',
+			'filterDaysBefore' => '1',
+		));
+	$ical->initUrl($ICAL_URL, $acceptLanguage = 'de');
+	$events = $ical->eventsFromInterval('2 week');
+	$first_event = $events[0];
+	$events = array_slice($events, 1);
+	if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])){
+		$locale = locale_accept_from_http($_SERVER['HTTP_ACCEPT_LANGUAGE']);
+		setlocale(LC_TIME, $locale);
+	}
 }
 function format_event($event): string{
 	global $DATE_FORMAT, $ical;