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Sklik skript pro kontrolu chybových stránek

5 komentářů

Skript slouží ke kontrole a a reportu chybových stránek v rámci všech Vašich účtů na Skliku.

Jak funguje

  1. Skript načte při prvním načtení seznam Vašich účtů na Skliku na Váš vložený dokument.
  2. Je dobré nechat maximálně 10 účtů pro kontrolu. Smažte tedy účtu ze sešitu, které nechcete kontrolovat.
  3. Následně skript projde všechny aktivní reklamy, vezme URL adresy a zkontroluje jejich odezvu.
  4. V případě problémů zapíše do reportu v jakých sestavách figurují chybové URL adresy.
  5. V případě chybových URL pošle email správci s upozorněním, že inzerujete na chybovou stránku.

Zdrojový kód skriptu

sklik-skript-pro.gs
/** ID of spreadsheet to use. Fill-in either ID or URL. */
var SPREADSHEET_ID = '';
/** URL of spreadsheet to use. Fill-in either ID or URL. */
var SPREADSHEET_URL = '';
/** Fetch only ads in active campaigns? Set to false if you have a large campaigns with almost everything active. */
var ACTIVE_ONLY = true;
/** Number of URL's to check at once. */
var URL_CHECK_BATCH_SIZE = 100;


/**
 * Script entry-point.
 */
function main() {
  var spreadsheet;
  if (SPREADSHEET_ID) {
    spreadsheet = SpreadsheetApp.openById(SPREADSHEET_ID);
  }
  else {
    spreadsheet = SpreadsheetApp.openByUrl(SPREADSHEET_URL);
  }
  var sklik = SklikAPI.Connect();
  sklik.loginFromProperties();
  var locale = Session.getActiveUserLocale();
  spreadsheet.setSpreadsheetLocale(locale);
  var accountToCheckSheet = lynt_create_or_get_sheet(spreadsheet, "Účty ke kontrole");
  var accounts = getAccountsToCheck(accountToCheckSheet);
  if (accounts.length > 0) {
    var results = {};
    for (var i = 0; i < accounts.length; i++) {
      var result = checkUrlsForAccount(sklik, accounts[i], spreadsheet);
      results[accounts[i].username] = result;
      Logger.log(result);
    }
    var historySheet = lynt_create_or_get_sheet(spreadsheet, "Přehled");
    spreadsheet.setActiveSheet(historySheet);
    spreadsheet.moveActiveSheet(1);
    writeHistory(historySheet, results);
  }
  else {
    var clientInfo = sklik.Client.get();
    var allAccountList = [["ID", "E-mail"]];
    for (var i = 0; i < clientInfo.foreignAccounts.length; i++) {
      allAccountList.push([
                clientInfo.foreignAccounts[i].userId,
                clientInfo.foreignAccounts[i].username
            ]);
    }
    accountToCheckSheet.clear();
    var range = accountToCheckSheet.getRange(1, 1, allAccountList.length, allAccountList[0].length);
    range.setValues(allAccountList);
    range.offset(0, 0, 1, 2).setFontWeight("bold");
    Logger.log("Na list Účty ke kontrole byl zapsán seznam všech účtů. Odstraňte ty, které si nepřejete kontrolovat, a spustťe skript znovu.");
  }
  sklik.Client.logout();
  lynt_remove_empty_sheets(spreadsheet);
}


/**
 * Gets the today date.
 * @returns {string}
 */
function getToday() {
  var date = new Date();
  date.toDateString();
  return date.toLocaleDateString();
}


/**
 * Gets the list of accounts specified for checking.
 */
function getAccountsToCheck(sheet) {
  var lastRow = sheet.getLastRow();
  var lastCol = sheet.getLastColumn();
  if (lastRow > 1 && lastCol >= 2) {
    var accounts = [];
    var range = sheet.getRange(1, 1, lastRow, lastCol);
    var data = range.getValues();
    for (var row = 1; row < data.length; row++) {
      accounts.push({
        userId: data[row][0],
        username: data[row][1]
      });
    }
    return accounts;
  }
  else {
    return [];
  }
}


/**
 * Checks URL addresses for all adverts in the given account and creates a new report on separate sheet.
 */
function checkUrlsForAccount(sklik, accountInfo, spreadsheet) {
  if (accountInfo) {
    sklik.setUserId(accountInfo.userId);
  }
  var ads = [];
  if (ACTIVE_ONLY) {
    ads = [];
    var campaignIds = [];
    var campaigns = sklik.Campaigns.list({}, ['name', 'deleted', 'dayBudget', 'exhaustedDayBudget', 'adSelection', 'createDate', 'totalBudget', 'exhaustedTotalBudget', 'exhaustedTotalClicks', 'premise ', 'targetDevices']).campaigns;
    for (var i = 0; i < campaigns.length; i++) {
      if (campaigns[i].status == 'active') {
        campaignIds.push(campaigns[i].id);
      }
    }
    var groupIds = [];
    var batchSize = 100;
    for (var offset = 0; offset < campaignIds.length; offset += batchSize) {
      var groups = sklik.Groups.list({
        campaignIds: campaignIds.slice(offset, offset + batchSize)
      }, ['deleted', 'campaign', 'cpc', 'cpcContext', 'cpt', 'createDate', 'maxUserDailyImpression']).groups;
      for (var i = 0; i < groups.length; i++) {
        if (groups[i].status == 'active') {
          groupIds.push(groups[i].id);
        }
      }
    }
    for (var offset = 0; offset < groupIds.length; offset += batchSize) {
      var adsBatch = sklik.Ads.list({
        groupIds: groupIds.slice(offset, offset + batchSize)
      }, {
        showId: true,
        showCreative1: true,
        showCreative2: false,
        showCreative3: false,
        showClickthruUrl: true,
        showClickthruText: false,
        showStatus: true,
        showStatusId: true,
        showSensitivity: false,
        showSensitivityId: false,
        showDeleted: false,
        showDeletedDate: false,
        showCreateDate: false,
        showPremiseMode: false,
        showPremiseId: false,
        showGroupId: true,
        showGroupName: true,
        showCampaignId: true,
        showCampaignName: true
      }).ads;
      ads = ads.concat(adsBatch);
    }
  }
  else {
    // Get all ads.
    ads = sklik.Ads.list({}, {
      showId: true,
      showCreative1: true,
      showCreative2: false,
      showCreative3: false,
      showClickthruUrl: true,
      showClickthruText: false,
      showStatus: true,
      showStatusId: true,
      showSensitivity: false,
      showSensitivityId: false,
      showDeleted: false,
      showDeletedDate: false,
      showCreateDate: false,
      showPremiseMode: false,
      showPremiseId: false,
      showGroupId: true,
      showGroupName: true,
      showCampaignId: true,
      showCampaignName: true
    }).ads;
  }
  // Iterate all ads and extract all unique URLs.
  var urls = {};
  for (var i = 0; i < ads.length; i++) {
    var ad = ads[i];
    if (ad.status == 'active') {
      var url = stripUtmFromUrl(ad.clickthruUrl);
      if (urls[url] != undefined) {
        urls[url].ads.push(ad);
      }
      else {
        urls[url] = {
          url: url,
          responseCode: null,
          ads: [ad]
        };
      }
    }
  }
  // Sends the extracted URLs to the specified gateway.
  // Prepare the list as a simple array.
  var urlsToCheck = [];
  for (var url in urls) {
    if (!urls.hasOwnProperty(url)) {
      continue;
    }
    urlsToCheck.push(url);
  }
  var bulkSize = URL_CHECK_BATCH_SIZE;
  for (var offset = 0; offset < urlsToCheck.length; offset += bulkSize) {
    var responseList = sklik.connector.urlCheck(urlsToCheck.slice(offset, offset + bulkSize));
    // Process the response and set the HTTP codes for each URL.
    for (var url in responseList) {
      if (!responseList.hasOwnProperty(url)) {
        continue;
      }
      urls[url].responseCode = responseList[url];
    }
  }
  // Convert the URL object (used for deduplication) to array.
  // Additionally, count the invalid URLs.
  var urlArray = [];
  var invalidUrlCount = 0;
  var redirectCount = 0;
  for (var url in urls) {
    if (urls.hasOwnProperty(url)) {
      urlArray.push(urls[url]);
      if (!isNumeric(urls[url].responseCode) || urls[url].responseCode >= 400) {
        invalidUrlCount++;
      }
      else if (urls[url].responseCode >= 300) {
        redirectCount++;
      }
    }
  }
  // Sort the URLs by response code.
  urlArray.sort(function(lhs, rhs) {
    var lnum = isNumeric(lhs.responseCode);
    var rnum = isNumeric(rhs.responseCode);
    if (lnum && rnum) {
      return rhs.responseCode - lhs.responseCode;
    }
    else if (lnum) {
      return -1;
    }
    else if (rnum) {
      return 1;
    }
    else {
      return 0;
    }
  });
  // Write the report.
  var sheet = lynt_create_or_get_sheet(spreadsheet, accountInfo.username);
  writeUrlReport(sheet, urlArray);
  if (accountInfo) {
    sklik.setUserId(null);
  }
  return {
    errors: invalidUrlCount,
    redirects: redirectCount
  };
}


/**
 * Writes the URL checking history.
 */
function writeHistory(historySheet, results) {
  var lastRow = historySheet.getLastRow();
  var lastCol = historySheet.getLastColumn();
  var data;
  if (lastRow > 0 && lastCol > 0) {
    var historyRange = historySheet.getRange(1, 1, lastRow, lastCol);
    data = historyRange.getValues();
  }
  else {
    data = [];
  }
  var today = getToday();
  if (data.length > 0) {
    data[0].splice(1, 0, today);
  }
  else {
    data.push(["Účet [chyby/přesměrování]", today]);
  }
  for (var row = 1; row < data.length; row++) {
    var account = data[row][0];
    if (results[account]) {
      data[row].splice(1, 0, results[account].errors + "/" + results[account].redirects);
      delete results[account];
    }
    else {
      data[row].splice(1, 0, "");
    }
  }
  for (var account in results) {
    if (results.hasOwnProperty(account)) {
      var newRow = new Array(data[0].length);
      newRow[0] = account;
      newRow[1] = results[account].errors + "/" + results[account].redirects;
      for (var i = 2; i < newRow.length; i++) {
        newRow[i] = "";
      }
      data.push(newRow);
    }
  }
  historySheet.clear();
  var outRange = historySheet.getRange(1, 1, data.length, data[0].length);
  outRange.setValues(data);
  outRange.setBorder(true, true, true, true, false, false);
  if (data.length > 1) {
    var colors = new Array(data.length - 1);
    for (var row = 1; row < data.length; row++) {
      colors[row - 1] = new Array(data[0].length - 1);
      for (var col = 1; col < data[0].length; col++) {
        var color = null;
        if (typeof(data[row][col]) == "string") {
          var value = data[row][col].split('/');
          if (value.length == 2) {
            if (parseInt(value[0], 10) > 0) {
              color = '#FF0000';
            }
            else if (parseInt(value[1], 10) > 0) {
              color = '#FFCC00';
            }
            else {
              color = '#80FF80';
            }
          }
        }
        else {
          color = '#FFFFFF';
        }
        colors[row - 1][col - 1] = color;
      }
    }
    outRange.offset(1, 1, data.length - 1, data[0].length - 1).setBackgrounds(colors);
  }
  outRange.offset(0, 0, 1, data[0].length).setFontWeight('bold').setBorder(true, true, true, true, null, null);
  outRange.offset(0, 0, data.length, 1).setFontWeight('bold').setBorder(true, true, true, true, null, null);
  for (var i = 1; i <= data[0].length; i++) {
    historySheet.autoResizeColumn(i);
  }
}


/**
 * Strips UTM parameters from the given URL. This function also removes the fragment part of the URL.
 */
function stripUtmFromUrl(url) {
  var match, search = /([^&=]+)=?([^&]*)/g,
    query;
  var hashPos = url.indexOf('#');
  if (hashPos === -1) {
    hashPos = url.length;
  }
  var queryPos = url.indexOf('?');
  if (queryPos === -1) {
    return url.substr(0, hashPos);
  }
  query = url.substring(queryPos + 1, hashPos);
  var newQueryParts = [];
  while (match = search.exec(query)) {
    if (match[1].substr(0, 4) != 'utm_') {
      newQueryParts.push(match[0]);
    }
  }
  if (newQueryParts.length > 0) {
    var newQuery = newQueryParts.join('&');
    return url.substr(0, queryPos + 1) + newQuery;
  }
  else {
    return url.substr(0, queryPos);
  }
}


/**
 * Checks if the given string is a number.
 * @param n String possibly containing a number.
 * @returns `true` if the given string contains a number (and nothing else than number).
 */
function isNumeric(n) {
  return !isNaN(parseFloat(n)) && isFinite(n);
}


/**
 * Writes URL report.
 */
function writeUrlReport(sheet, urls) {
  sheet.clear();
  var lastEmptyRow = sheet.getMaxRows();
  if (lastEmptyRow > 2) {
    sheet.deleteRows(3, lastEmptyRow - 2);
  }
  var overviewLen = createUrlOverview(sheet, 1, urls);
  var offset = overviewLen + 2;
  for (var i = 0; i < urls.length; i++) {
    if (urls[i].responseCode == 200) {
      continue;
    }
    var detailLen = createUrlAdsDetail(sheet, offset, urls[i]);
    offset += detailLen + 2;
  }
  for (var i = 1; i <= 4; i++) {
    sheet.autoResizeColumn(i);
  }
}


/**
 * Creates URL overview table.
 */
function createUrlOverview(sheet, offset, urls) {
  var rows = new Array(urls.length + 2);
  rows[0] = ["Přehled odkazovaných URL z inzerátů", ""];
  rows[1] = ["URL adresa", "Stavový kód"];
  var colors = [];
  var rowN = 2;
  var code;
  for (var i = 0; i < urls.length; i++) {
    code = urls[i].responseCode;
    rows[rowN] = [urls[i].url, formatResponseCode(code)];
    colors.push([getResponseColor(code)]);
    rowN++;
  }
  sheet.insertRows(offset, rows.length + 2);
  var range = sheet.getRange(offset, 1, rows.length, rows[0].length);
  range.setValues(rows);
  range.setBorder(true, true, true, true, false, false);
  if (urls.length > 0) {
    range.offset(2, 1, urls.length, 1).setBackgrounds(colors);
  }
  range.offset(0, 0, 2, 2).setFontWeight('bold').setBorder(true, true, true, true, false, true);
  return rows.length;
}
var httpStatusCodes = {
  "100": "100 Continue",
  "101": "101 Switching Protocols",
  "200": "200 OK",
  "201": "201 Created",
  "202": "202 Accepted",
  "203": "203 Non-Authoritative Information",
  "204": "204 No Content",
  "205": "205 Reset Content",
  "206": "206 Partial Content",
  "300": "300 Multiple Choices",
  "301": "301 Moved Permanently",
  "302": "302 Found",
  "303": "303 See Other",
  "304": "304 Not Modified",
  "305": "305 Use Proxy",
  "307": "307 Temporary Redirect",
  "400": "400 Bad Request",
  "401": "401 Unauthorized",
  "402": "402 Payment Required",
  "403": "403 Forbidden",
  "404": "404 Not Found",
  "405": "405 Method Not Allowed",
  "406": "406 Not Acceptable",
  "407": "407 Proxy Authentication Required",
  "408": "408 Request Timeout",
  "409": "409 Conflict",
  "410": "410 Gone",
  "411": "411 Length Required",
  "412": "412 Precondition Failed",
  "413": "413 Request Entity Too Large",
  "414": "414 Request-URI Too Long",
  "415": "415 Unsupported Media Type",
  "416": "416 Requested Range Not Satisfiable",
  "417": "417 Expectation Failed",
  "500": "500 Internal Server Error",
  "501": "501 Not Implemented",
  "502": "502 Bad Gateway",
  "503": "503 Service Unavailable",
  "504": "504 Gateway Timeout",
  "505": "505 HTTP Version Not Supported"
};


/**
 * Gets the response code with human-friendly description (if available).
 */
function formatResponseCode(code) {
  if (httpStatusCodes[code]) {
    return httpStatusCodes[code];
  }
  else {
    return code;
  }
}


/**
 * Gets the color for coloring the response code.
 */
function getResponseColor(code) {
  var numeric = isNumeric(code);
  var codeNum = parseInt(code, 10);
  if (numeric && codeNum < 300) {
    return '#80FF80';
  }
  else if (numeric && codeNum >= 300 && codeNum < 400) {
    return '#FFCC00';
  }
  else {
    return '#FF0000';
  }
}


/**
 * Creates ad details for the given URL.
 */
function createUrlAdsDetail(sheet, offset, url) {
  var rows = new Array(url.ads.length + 2);
  rows[0] = [url.url, formatResponseCode(url.responseCode), "", ""];
  rows[1] = ["Kampaň", "Sestava", "Inzerát", "URL"];
  var rowN = 2;
  for (var i = 0; i < url.ads.length; i++) {
    var ad = url.ads[i];
    rows[rowN] = [
            ad.campaign.name,
            ad.group.name,
            ad.creative1,
            formatAdvertUrl(ad)
        ];
    rowN++;
  }
  sheet.insertRows(offset, rows.length + 2);
  var range = sheet.getRange(offset, 1, rows.length, rows[0].length);
  range.setBorder(true, true, true, true, false, false);
  range.setValues(rows);
  range.offset(0, 0, 1, 2).setFontSize(14);
  range.offset(0, 1, 1, 1).setBackground(getResponseColor(url.responseCode));
  range.offset(0, 0, 2, 4).setFontWeight('bold').setBorder(true, true, true, true, false, true);
  return rows.length;
}


/**
 * Gets URL for editing the given advert.
 */
function formatAdvertUrl(advert) {
  return 'https://www.sklik.cz/detail-inzeratu?id=' + advert.id + '&referrerPage=group&returnUrl=%2Fcampaigns%2F' + advert.campaign.id + '%2Fgroups%2F' + advert.group.id + '%2Fadverts';
}


/**
 * Gets the day specified number of days before today.
 *
 * This function correctly transforms between normal time and DST.
 */
function lynt_get_date(daysBack) {
  var past = new Date();
  past.setHours(0);
  past.setMinutes(0);
  past.setSeconds(0);
  past.setMilliseconds(0);
  var originalOffset = past.getTimezoneOffset();
  var pastTime = past.getTime() - daysBack * 86400 * 1000;
  past.setTime(pastTime);
  var newOffset = past.getTimezoneOffset();
  var offsetDiff = newOffset - originalOffset;
  if (offsetDiff != 0) {
    pastTime += offsetDiff * 60 * 1000;
    past.setTime(pastTime);
  }
  return past;
}


/**
 * Gets the last sunday.
 */
function lynt_get_suday() {
  var dayOffset = new Date().getDay();
  return lynt_get_date(dayOffset);
}


/**
 * Gets the date specified number of days before the last sunday.
 */
function lynt_get_xdays_back_from_sunday(pocet_dni) {
  var dayOffset = new Date().getDay();
  return lynt_get_date(dayOffset + pocet_dni);
}


/**
 * Adds specified number of milliseconds to the specified date.
 *
 * This function correctly transforms between normal time and DST.
 */
function lynt_date_add(date, miliseconds) {
  var newTime = date.getTime() + miliseconds;
  var newDate = new Date(newTime);
  var offsetDiff = newDate.getTimezoneOffset() - date.getTimezoneOffset();
  if (offsetDiff != 0) {
    newTime += offsetDiff * 60 * 1000;
    newDate.setTime(newTime);
  }
  return newDate;
}


var SortOrder;
(function(SortOrder) {
  SortOrder[SortOrder["ASC"] = 0] = "ASC";
  SortOrder[SortOrder["DESC"] = 1] = "DESC";
})(SortOrder || (SortOrder = {}));


/**
 * Creates or opens specified sheet in spreadsheet.
 */
function lynt_create_or_get_sheet(spreadsheet, name, position) {
  var sheet = spreadsheet.getSheetByName(name);
  if (sheet == null) {
    sheet = spreadsheet.insertSheet(name, position);
  }
  return sheet;
}

function lynt_remove_empty_sheets(spreadsheet) {
  var sheets = spreadsheet.getSheets();
  for (var i = 0; i < sheets.length; i++) {
    if (sheets[i].getLastRow() == 0) {
      spreadsheet.deleteSheet(sheets[i]);
    }
  }
}

function lynt_highlight_range(range, higlightingRules) {
  var rows = range.getNumRows();
  var cols = range.getNumColumns();
  var values = range.getValues();
  var backgrounds = new Array(rows);
  var value, color;
  for (var r = 0; r < rows; r++) {
    backgrounds[r] = new Array(cols);
    for (var c = 0; c < cols; c++) {
      color = '#FFFFFF';
      value = values[r][c];
      if (typeof(value) == 'number') {
        for (var ri = 1; ri < higlightingRules.length; ri++) {
          if (value <= higlightingRules[ri].value) {
            color = lynt_color_to_hex(lynt_get_color_from_range(value, higlightingRules[ri - 1], higlightingRules[ri]));
            break;
          }
        }
      }
      backgrounds[r][c] = color;
    }
  }
  range.setBackgrounds(backgrounds);
}


/**
 * Computes color from the given range.
 */
function lynt_get_color_from_range(value, upper, lower) {
  var ratio = (value - lower.value) / (upper.value - lower.value);
  return {
    r: lower.color.r + ratio * (upper.color.r - lower.color.r),
    g: lower.color.g + ratio * (upper.color.g - lower.color.g),
    b: lower.color.b + ratio * (upper.color.b - lower.color.b),
  };
}

function lynt_color_to_hex(color) {
  var rHex = Math.round(color.r).toString(16);
  var gHex = Math.round(color.g).toString(16);
  var bHex = Math.round(color.b).toString(16);
  if (rHex.length < 2) {
    rHex = '0' + rHex;
  }
  if (gHex.length < 2) {
    gHex = '0' + gHex;
  }
  if (bHex.length < 2) {
    bHex = '0' + bHex;
  }
  return '#' + rHex + gHex + bHex;
}


function lynt_store_save(dataFolderName, fileName, object) {
  var objectJson = JSON.stringify(object);
  var dataFolder = lynt_get_data_folder(dataFolderName);
  var files = dataFolder.getFilesByName(fileName);
  var dataFile;
  if (files.hasNext()) {
    dataFile = files.next();
    dataFile.setContent(objectJson);
  }
  else {
    dataFolder.createFile(fileName, objectJson, "application/json");
  }
  return true;
}

function lynt_store_load(dataFolderName, fileName) {
  var dataFolder = lynt_get_data_folder(dataFolderName);
  var files = dataFolder.getFilesByName(fileName);
  var dataFile;
  if (files.hasNext()) {
    dataFile = files.next();
  }
  if (dataFile) {
    var objectJson = dataFile.getBlob().getDataAsString("UTF-8");
    return JSON.parse(objectJson);
  }
  else {
    return null;
  }
}

function lynt_get_data_folder(dataFolderName) {
  var root = DriveApp.getRootFolder();
  var folders = root.getFoldersByName(dataFolderName);
  var dataFolder;
  if (folders.hasNext()) {
    dataFolder = folders.next();
  }
  else {
    dataFolder = root.createFolder(dataFolderName);
  }
  return dataFolder;
}
Jakub Kašparů

Spolumajitel PPC agentury Lynt. Píše na jakubkasparu.com.

jakubkasparu.com ↗LinkedIn ↗

Komentáře 5

  1. Milan Merglevský

    Skvělá práce, děkuji moc!

  2. Hana Kobzová

    Skript funguje bezvadně, ale bylo by možné jej rozšířit také o kontrolu url na úrovni klíčových slov a rozšíření reklam (odkazy)?

  3. Jan Smitka

    Děkujeme za podnět, bohužel při operacích na úrovni klíčových slov narážíme na limit času pro zpracování: i u menších účtů se nám často stávalo, že vypršel limit při načítání klíčových slov, natož aby pak zbyl čas na jejich kontrolu.

    Nad rozšířením o odkazy kampaní a sestav zapřemýšlíme. U nich může být trochu problém s jejich spárováním s kampaněmi/sestavami, v případě většího množství pak také s dobou běhu. Mohu se zeptat, kolik odkazů máte řádově nadefinovaných? Jak často se u kampaní/sestav opakují, tj. máte pro každou kampaň/sestavu unikátní odkazy, nebo jich střídáte jen určité množství?

  4. Hana Kobzová

    Odkazů mám nadefinovaných cca 600. Většinou je odkaz přiřazen pouze 1 kampani na úrovni kampaně. Děkuji.

  5. Lukáš Kolovrat

    Ahoj, Jakube,
    1/ Při spuštění skriptu se zobrazítato hláška „TypeError: Nelze volat metodu „indexOf“ z null. (řádek 287, soubor „Kód“)“ Řádek 287: „var hashPos = url.indexOf(‚#‘);“ jak prosím chybu opravit?
    2/ Lze někde zvolit přímo na které emaily se má zasílat upozornění na chybné URL? příp. kam zadávat?
    Děkuji.