diff --git a/README.md b/README.md
index 15750be..0f966d4 100644
--- a/README.md
+++ b/README.md
@@ -434,21 +434,23 @@ NOTE: Prebid is supported for SRA.  Amazon A9/TAM is not supported for SRA and w
 NOTE: ArcAds SRA implementation calls enableSingleRequest() which means that when using pubads lazyLoad functions together with SRA, when the first ad slot comes within the viewport specified by the fetchMarginPercent parameter, the call for that ad and all other ad slots is made. If different behavior is desired after the initial SRA call is made, an outside lazy loading library may be used to manage the calls for regsterAd, reserveAd and other calls.
 
 ## Developer Tools
-There's a series developer tools available, to get started run `yarn install`.
+There's a series developer tools available, to get started run `npm install`.
 
 | Command  | Description |
 | ------------- | ------------- |
-| `yarn dev`  | Runs the development command, watches for changes and compiles the changes down to the `dist` directory.  |
-| `yarn build`  | Builds the project into the `dist` directory with minification.  |
-| `yarn docs`  | Generates ESDoc documentation in the `docs` directory on-demand.  |
-| `yarn test`  | Runs a series of unit tests with Jest. Tests are automatically validated during a pull request.  |
-| `yarn debug`  | Starts a local http server so you can link directly to the script during development. For example `<script src="http://localhost:9000/dist/arcads.js"></script> |
+| `npm run dev`  | Runs the development command, watches for changes and compiles the changes down to the `dist` directory.  |
+| `npm run build`  | Builds the project into the `dist` directory with minification.  |
+| `npm run docs`  | Generates ESDoc documentation in the `docs` directory on-demand.  |
+| `npm run test`  | Runs a series of unit tests with Jest. Tests are automatically validated during a pull request.  |
+| `npm run debug`  | Starts a local http server so you can link directly to the script during development. For example `<script src="http://localhost:9000/dist/arcads.js"></script> |
 
 ### Slot Override
 You can override the slot name of every advertisement on the page by appending `?adslot=` to the URL. This will override whatever is placed inside of the `slotName` field when invoking the `registerAd` method. For example, if you hit the URL `arcpublishing.com/?adslot=homepage/myad`, the full ad slot path will end up being your DFP id followed by the value: `123/homepage/myad`.
 
 You can also debug slot names and GPT in general by typing `window.googletag.openConsole()` into the browsers developer console.
 
+### Logging
+To inspect the funtion calls taking place within the ArcAds library, you can include the `debug=true` query parameter on your page.
 
 ## Contributing
 If you'd like to contribute to ArcAds please read our [contributing guide](https://github.com/washingtonpost/ArcAds/blob/master/CONTRIBUTING.md).
diff --git a/dist/arcads.js b/dist/arcads.js
index fe755e8..c5e7d4f 100644
--- a/dist/arcads.js
+++ b/dist/arcads.js
@@ -1 +1 @@
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strict";Object.defineProperty(n,"__esModule",{value:!0}),n.initializeGPT=function(){window.googletag=window.googletag||{},window.googletag.cmd=window.googletag.cmd||[],(0,t.appendResource)("script","//www.googletagservices.com/tag/js/gpt.js",!0,!0)},n.refreshSlot=function(e){var n=e.ad,i=e.correlator,t=void 0!==i&&i,r=e.prerender,o=void 0===r?null:r,a=e.info,d=void 0===a?{}:a;new Promise(function(e){if(o)try{o(d).then(function(){e("Prerender function has completed.")})}catch(n){console.warn("ArcAds: Prerender function did not return a promise or there was an error.\n          Documentation: https://github.com/wapopartners/arc-ads/wiki/Utilizing-a-Prerender-Hook"),e("Prerender function did not return a promise or there was an error, ignoring.")}else e("No Prerender function was provided.")}).then(function(){!function e(){if(window.blockArcAdsLoad)return"blockArcAdsLoad";window.googletag&&googletag.pubadsReady?window.googletag.pubads().refresh([n],{changeCorrelator:t}):setTimeout(function(){e()},200)}()})},n.queueGoogletagCommand=function(e){window.googletag.cmd.push(e)},n.setTargeting=function(e,n){for(var i in n)n.hasOwnProperty(i)&&n[i]&&e.setTargeting(i,n[i])},n.dfpSettings=function(e){window.googletag.pubads().disableInitialLoad(),window.googletag.pubads().enableSingleRequest(),window.googletag.pubads().enableAsyncRendering(),this.collapseEmptyDivs&&window.googletag.pubads().collapseEmptyDivs();window.googletag.enableServices(),e&&window.googletag.pubads().addEventListener("slotRenderEnded",e)},n.determineSlotName=function(e,n){var i=(0,r.expandQueryString)("adslot");if(i&&(""!==i||null!==i))return"/"+e+"/"+i;return"/"+e+"/"+n};var t=i(5),r=i(6)},function(e,n,i){"use strict";Object.defineProperty(n,"__esModule",{value:!0}),n.initializeBiddingServices=a,n.fetchBids=function(e){var n=this,i=e.ad,d=e.id,s=e.slotName,u=e.dimensions,l=e.wrapper,c=e.bidding,p=e.correlator,f=void 0!==p&&p,g=e.prerender,b=e.breakpoints,v={adUnit:i,adSlot:s,adDimensions:u,adId:d,bids:c},h=new Promise(function(e){if(l.prebid&&l.prebid.enabled){var r=l.prebid.timeout||700;t.queuePrebidCommand.bind(n,(0,t.fetchPrebidBids)(i,l.prebid.useSlotForAdUnit?s:d,r,v,g,function(){e("Fetched Prebid ads!")}))}else e("Prebid is not enabled on the wrapper...")}),w=new Promise(function(e){l.amazon&&l.amazon.enabled?(0,r.fetchAmazonBids)(d,s,u,b,function(){e("Fetched Amazon ads!")}):e("Amazon is not enabled on the wrapper...")});window.arcBiddingReady?Promise.all([h,w]).then(function(){(0,o.refreshSlot)({ad:i,correlator:f,prerender:g,info:v})}):setTimeout(function(){return a()},200)};var t=i(2),r=i(7),o=i(0);function a(e){var n=e.prebid,i=void 0!==n&&n,t=e.amazon,o=void 0!==t&&t;if(!window.arcBiddingReady){window.arcBiddingReady=!1;var a=new Promise(function(e){if(i&&i.enabled){if("undefined"==typeof 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a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null,d=t;d.bids=Array.isArray(t.bids)?t.bids:[t.bids],o(e,[n],i,d,r,a)},n.addUnit=function(e,n,i){var r=arguments.length>3&&void 0!==arguments[3]?arguments[3]:{},o=arguments.length>4&&void 0!==arguments[4]?arguments[4]:{},a=t({code:e,bids:i},o);a.mediaTypes={banner:{sizes:n}};var d=r.sizeConfig,s=r.config;if(pbjs.addAdUnits(a),s)return void pbjs.setConfig(s);d&&pbjs.setConfig({sizeConfig:d})};var r=i(0);function o(e,n,i,t,o){var a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:null;pbjs.addAdUnits(t),window.blockArcAdsPrebid||pbjs.requestBids({timeout:i,adUnitCodes:n,bidsBackHandler:function(i){console.log("Bid Back Handler",i),pbjs.setTargetingForGPTAsync(n),a?a():(0,r.refreshSlot)({ad:e,info:t,prerender:o})}})}},function(e,n,i){"use strict";Object.defineProperty(n,"__esModule",{value:!0}),n.ArcAds=void 0;var t=function(){function e(e,n){for(var i=0;i<n.length;i++){var 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diff --git a/package-lock.json b/package-lock.json
index 15a349d..bf99a19 100644
--- a/package-lock.json
+++ b/package-lock.json
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-          "integrity": "sha512-hMp0onDKIajHfIkdRk3P4CdCmErkYAxxDtP3Wx/4nZ3aGlau2VKh3mZpcuFkH27WQkL/3WBCPOktzA9ZOAnMQQ==",
+          "version": "2.2.0",
+          "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
+          "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==",
           "dev": true
         },
         "pkg-dir": {
@@ -10686,9 +10502,9 @@
           }
         },
         "readable-stream": {
-          "version": "2.3.6",
-          "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
-          "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
+          "version": "2.3.7",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.7.tgz",
+          "integrity": "sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==",
           "dev": true,
           "requires": {
             "core-util-is": "~1.0.0",
@@ -10700,54 +10516,110 @@
             "util-deprecate": "~1.0.1"
           }
         },
+        "resolve-cwd": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/resolve-cwd/-/resolve-cwd-2.0.0.tgz",
+          "integrity": "sha1-AKn3OHVW4nA46uIyyqNypqWbZlo=",
+          "dev": true,
+          "requires": {
+            "resolve-from": "^3.0.0"
+          }
+        },
+        "resolve-from": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-3.0.0.tgz",
+          "integrity": "sha1-six699nWiBvItuZTM17rywoYh0g=",
+          "dev": true
+        },
+        "safe-buffer": {
+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
+          "dev": true
+        },
+        "semver": {
+          "version": "5.7.1",
+          "resolved": "https://registry.npmjs.org/semver/-/semver-5.7.1.tgz",
+          "integrity": "sha512-sauaDf/PZdVgrLTNYHRtpXa1iRiKcaebiKQ1BJdpQlWH2lCvexQdX55snPFyK7QzpudqbCI0qXFfOasHdyNDGQ==",
+          "dev": true
+        },
+        "string-width": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-3.1.0.tgz",
+          "integrity": "sha512-vafcv6KjVZKSgz06oM/H6GDBrAtz8vdhQakGjFIvNrHA6y3HCF1CInLy+QLq8dTJPQ1b+KDUqDFctkdRW44e1w==",
+          "dev": true,
+          "requires": {
+            "emoji-regex": "^7.0.1",
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^5.1.0"
+          }
+        },
         "string_decoder": {
           "version": "1.1.1",
-          "resolved": "http://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
           "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
           "dev": true,
           "requires": {
             "safe-buffer": "~5.1.0"
           }
         },
+        "strip-ansi": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-5.2.0.tgz",
+          "integrity": "sha512-DuRs1gKbBqsMKIZlrffwlug8MHkcnpjs5VPmL1PAh+mA30U0DTotfDZ0d2UUsXpPmPmMMJ6W773MaA3J+lbiWA==",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^4.1.0"
+          }
+        },
         "supports-color": {
-          "version": "5.5.0",
-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
-          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+          "version": "6.1.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.1.0.tgz",
+          "integrity": "sha512-qe1jfm1Mg7Nq/NSh6XE24gPXROEVsWHxC1LIx//XNlD9iw7YZQGjZNjYN7xGaEG6iKdA8EtNFW6R0gjnVXp+wQ==",
           "dev": true,
           "requires": {
             "has-flag": "^3.0.0"
           }
         },
         "tapable": {
-          "version": "1.1.1",
-          "resolved": "https://registry.npmjs.org/tapable/-/tapable-1.1.1.tgz",
-          "integrity": "sha512-9I2ydhj8Z9veORCw5PRm4u9uebCn0mcCa6scWoNcbZ6dAtoo2618u9UUzxgmsCOreJpqDDuv61LvwofW7hLcBA==",
+          "version": "1.1.3",
+          "resolved": "https://registry.npmjs.org/tapable/-/tapable-1.1.3.tgz",
+          "integrity": "sha512-4WK/bYZmj8xLr+HUCODHGF1ZFzsYffasLUgEiMBY4fgtltdO6B4WJtlSbPaDTLpYTcGVwM2qLnFTICEcNxs3kA==",
           "dev": true
         },
+        "wrap-ansi": {
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-5.1.0.tgz",
+          "integrity": "sha512-QC1/iN/2/RPVJ5jYK8BGttj5z83LmSKmvbvrXPNCLZSEb32KKVDJDl/MOt2N01qU2H/FkzEa9PKto1BqDjtd7Q==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^3.2.0",
+            "string-width": "^3.0.0",
+            "strip-ansi": "^5.0.0"
+          }
+        },
         "yargs": {
-          "version": "12.0.5",
-          "resolved": "https://registry.npmjs.org/yargs/-/yargs-12.0.5.tgz",
-          "integrity": "sha512-Lhz8TLaYnxq/2ObqHDql8dX8CJi97oHxrjUcYtzKbbykPtVW9WB+poxI+NM2UIzsMgNCZTIf0AQwsjK5yMAqZw==",
+          "version": "13.3.2",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-13.3.2.tgz",
+          "integrity": "sha512-AX3Zw5iPruN5ie6xGRIDgqkT+ZhnRlZMLMHAs8tg7nRruy2Nb+i5o9bwghAogtM08q1dpr2LVoS8KSTMYpWXUw==",
           "dev": true,
           "requires": {
-            "cliui": "^4.0.0",
-            "decamelize": "^1.2.0",
+            "cliui": "^5.0.0",
             "find-up": "^3.0.0",
-            "get-caller-file": "^1.0.1",
-            "os-locale": "^3.0.0",
+            "get-caller-file": "^2.0.1",
             "require-directory": "^2.1.1",
-            "require-main-filename": "^1.0.1",
+            "require-main-filename": "^2.0.0",
             "set-blocking": "^2.0.0",
-            "string-width": "^2.0.0",
+            "string-width": "^3.0.0",
             "which-module": "^2.0.0",
-            "y18n": "^3.2.1 || ^4.0.0",
-            "yargs-parser": "^11.1.1"
+            "y18n": "^4.0.0",
+            "yargs-parser": "^13.1.2"
           }
         },
         "yargs-parser": {
-          "version": "11.1.1",
-          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-11.1.1.tgz",
-          "integrity": "sha512-C6kB/WJDiaxONLJQnF8ccx9SEeoTTLek8RVbaOIsrAUS8VrBEXfmeSnCZxygc+XC2sNMBIwOOnfcxiynjHsVSQ==",
+          "version": "13.1.2",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
+          "integrity": "sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==",
           "dev": true,
           "requires": {
             "camelcase": "^5.0.0",
@@ -10757,9 +10629,9 @@
       }
     },
     "webpack-sources": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/webpack-sources/-/webpack-sources-1.3.0.tgz",
-      "integrity": "sha512-OiVgSrbGu7NEnEvQJJgdSFPl2qWKkWq5lHMhgiToIiN9w34EBnjYzSYs+VbL5KoYiLNtFFa7BZIKxRED3I32pA==",
+      "version": "1.4.3",
+      "resolved": "https://registry.npmjs.org/webpack-sources/-/webpack-sources-1.4.3.tgz",
+      "integrity": "sha512-lgTS3Xhv1lCOKo7SA5TjKXMjpSM4sBjNV5+q2bqesbSPs5FjGmU6jjtBSkX9b4qW87vDIsCIlUPOEhbZrMdjeQ==",
       "dev": true,
       "requires": {
         "source-list-map": "^2.0.0",
@@ -10835,6 +10707,19 @@
         "isexe": "^2.0.0"
       }
     },
+    "which-boxed-primitive": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/which-boxed-primitive/-/which-boxed-primitive-1.0.2.tgz",
+      "integrity": "sha512-bwZdv0AKLpplFY2KZRX6TvyuN7ojjr7lwkg6ml0roIy9YeuSr7JS372qlNW18UQYzgYK9ziGcerWqZOmEn9VNg==",
+      "dev": true,
+      "requires": {
+        "is-bigint": "^1.0.1",
+        "is-boolean-object": "^1.1.0",
+        "is-number-object": "^1.0.4",
+        "is-string": "^1.0.5",
+        "is-symbol": "^1.0.3"
+      }
+    },
     "which-module": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
@@ -10847,15 +10732,21 @@
       "integrity": "sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0=",
       "dev": true
     },
+    "word-wrap": {
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz",
+      "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ=="
+    },
     "wordwrap": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
-      "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus="
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.2.tgz",
+      "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8=",
+      "dev": true
     },
     "worker-farm": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/worker-farm/-/worker-farm-1.6.0.tgz",
-      "integrity": "sha512-6w+3tHbM87WnSWnENBUvA2pxJPLhQUg5LKwUQHq3r+XPhIM+Gh2R5ycbwPCyuGbNg+lPgdcnQUhuC02kJCvffQ==",
+      "version": "1.7.0",
+      "resolved": "https://registry.npmjs.org/worker-farm/-/worker-farm-1.7.0.tgz",
+      "integrity": "sha512-rvw3QTZc8lAxyVrqcSGVm5yP/IJ2UcB3U0graE3LCFoZ0Yn2x4EoVSqJKdB/T5M+FLcRPjz4TDacRf3OCfNUzw==",
       "dev": true,
       "requires": {
         "errno": "~0.1.7"
@@ -10863,7 +10754,7 @@
     },
     "wrap-ansi": {
       "version": "2.1.0",
-      "resolved": "http://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
       "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
       "dev": true,
       "requires": {
@@ -10882,7 +10773,7 @@
         },
         "string-width": {
           "version": "1.0.2",
-          "resolved": "http://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
           "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
           "dev": true,
           "requires": {
@@ -10909,9 +10800,9 @@
       }
     },
     "write-file-atomic": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-2.3.0.tgz",
-      "integrity": "sha512-xuPeK4OdjWqtfi59ylvVL0Yn35SF3zgcAcv7rBPFHVaEapaDr4GdGgm3j7ckTwH9wHL7fGmgfAnb0+THrHb8tA==",
+      "version": "2.4.3",
+      "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-2.4.3.tgz",
+      "integrity": "sha512-GaETH5wwsX+GcnzhPgKcKjJ6M2Cq3/iZp1WyY/X1CSqrW+jVNM9Y7D8EC2sM4ZG/V8wZlSniJnCKWPmBYAucRQ==",
       "dev": true,
       "requires": {
         "graceful-fs": "^4.1.11",
@@ -10935,15 +10826,15 @@
       "optional": true
     },
     "xtend": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
-      "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
       "dev": true
     },
     "y18n": {
-      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
-      "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE=",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.1.tgz",
+      "integrity": "sha512-wNcy4NvjMYL8gogWWYAO7ZFWFfHcbdbE57tZO8e4cbpj8tfUcwrwqSl3ad8HxpYWCdXcJUCeKKZS62Av1affwQ==",
       "dev": true
     },
     "yallist": {
@@ -10970,6 +10861,26 @@
         "which-module": "^2.0.0",
         "y18n": "^3.2.1",
         "yargs-parser": "^8.1.0"
+      },
+      "dependencies": {
+        "get-caller-file": {
+          "version": "1.0.3",
+          "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-1.0.3.tgz",
+          "integrity": "sha512-3t6rVToeoZfYSGd8YoLFR2DJkiQrIiUrGcjvFX2mDw3bn6k2OtwHN0TNCLbBO+w8qTvimhDkv+LSscbJY1vE6w==",
+          "dev": true
+        },
+        "require-main-filename": {
+          "version": "1.0.1",
+          "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-1.0.1.tgz",
+          "integrity": "sha1-l/cXtp1IeE9fUmpsWqj/3aBVpNE=",
+          "dev": true
+        },
+        "y18n": {
+          "version": "3.2.2",
+          "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.2.tgz",
+          "integrity": "sha512-uGZHXkHnhF0XeeAPgnKfPv1bgKAYyVvmNL1xlKsPYZPaIHxGti2hHqvOCQv71XMsLxu1QjergkqogUnms5D3YQ==",
+          "dev": true
+        }
       }
     },
     "yargs-parser": {
@@ -10979,6 +10890,14 @@
       "dev": true,
       "requires": {
         "camelcase": "^4.1.0"
+      },
+      "dependencies": {
+        "camelcase": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
+          "integrity": "sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=",
+          "dev": true
+        }
       }
     }
   }
diff --git a/package.json b/package.json
index 6508dde..09be4f5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "arcads",
-  "version": "2.0.2",
+  "version": "3.0.0",
   "description": "ArcAds is a DFP wrapper created by Arc Publishing with publishers in mind.",
   "main": "dist/arcads.js",
   "scripts": {
@@ -50,6 +50,8 @@
     "webpack-cli": "^3.0.8"
   },
   "dependencies": {
+    "anylogger": "^1.0.10",
+    "anylogger-console": "^1.0.0",
     "esdoc": "^1.0.4",
     "esdoc-standard-plugin": "^1.0.0",
     "promise-polyfill": "^8.0.0"
diff --git a/src/__tests__/util.test.js b/src/__tests__/util.test.js
index eb25846..bf6a060 100644
--- a/src/__tests__/util.test.js
+++ b/src/__tests__/util.test.js
@@ -1,5 +1,8 @@
+import anylogger from 'anylogger';
+import 'anylogger-console';
 import { renamePositionKey } from '../util/customTargeting';
 import {debounce} from '../util/debounce.js';
+import {sendLog} from '../util/log.js';
 
 describe('The CustomTargeting.js functions', () => {
   it('should take targeting and position value, and rename the key as posn', () => {
@@ -48,3 +51,34 @@ describe('debounce', () => {
     expect(func).toHaveBeenCalledTimes(1);
   });
 });
+
+describe('sendLog', () => {
+
+  test('sendLog', () => {
+    const location = {
+      ...window.location,
+      search: '?debug=true'
+    };
+  
+    Object.defineProperty(window, 'location', {
+      writable: true,
+      value: location
+    });
+  
+    const DATE_TO_USE = new Date('Thu Feb 04 2021 11:04:05 GMT-0500');
+    global.Date = jest.fn(() => DATE_TO_USE);
+    anylogger.log = jest.fn();
+    sendLog('testFunc()', 'a test of the send log', null);
+    setTimeout(() => {
+      expect(anylogger.log).toHaveBeenCalledWith('arcads.js', [{"description": "a test of the send log", "logging from": "testFunc()", "service": "ArcAds", "slotName": null, "timestamp": "Thu Feb 04 2021 11:04:05 GMT-0500 (Eastern Standard Time)"}]);
+    }, 500);
+  });
+
+  test('sendLog if window undefined', () => {
+    delete global.window; 
+    sendLog('testFunc()', 'a test of the send log', null);
+    setTimeout(() => {
+      expect(console.error).toHaveBeenCalled();
+    }, 500);
+  });
+});
diff --git a/src/index.js b/src/index.js
index b9b9b2e..4b7466b 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,4 +1,5 @@
 import { MobileDetection } from './util/mobile';
+import { sendLog } from './util/log';
 import { fetchBids, initializeBiddingServices } from './services/headerbidding';
 import { initializeGPT, queueGoogletagCommand, refreshSlot, dfpSettings, setTargeting, determineSlotName } from './services/gpt';
 import { queuePrebidCommand, addUnit } from './services/prebid';
@@ -18,7 +19,6 @@ export class ArcAds {
     this.positions = [];
     this.collapseEmptyDivs = options.dfp.collapseEmptyDivs;
     this.adsList = [];
-
     window.isMobile = MobileDetection;
 
     if (this.dfpId === '') {
@@ -27,6 +27,7 @@ export class ArcAds {
         '\n',
         'Documentation: https://github.com/wapopartners/arc-ads#getting-started'
       );
+      sendLog('constructor()', 'The DFP id missing from the arcads initialization script. ArcAds cannot proceed.', null);
     } else {
       initializeGPT();
       queueGoogletagCommand(dfpSettings.bind(this, handleSlotRendered));
@@ -91,6 +92,7 @@ export class ArcAds {
 
         processDisplayAd = this.displayAd.bind(this, params);
         if (processDisplayAd) {
+          sendLog('registerAd()', 'Queuing Google Tag command for ad', slotName);
           queueGoogletagCommand(processDisplayAd);
         }
       }
@@ -114,6 +116,9 @@ export class ArcAds {
   * @param {array} collection - An array containing a list of objects containing advertisement data.
   **/
   registerAdCollectionSingleCall(collection, bidderTimeout = 700) {
+    sendLog('registerAdCollectionSingleCall()', 'Registering all reserved ads', null);
+
+
     window.blockArcAdsLoad = true;
     window.blockArcAdsPrebid = true;
 
@@ -186,17 +191,18 @@ export class ArcAds {
     const ad = !dimensions ? window.googletag.defineOutOfPageSlot(fullSlotName, id)
       : window.googletag.defineSlot(fullSlotName, parsedDimensions, id);
 
-
     if (sizemap && sizemap.breakpoints && dimensions) {
       const { mapping, breakpoints, correlators } = prepareSizeMaps(parsedDimensions, sizemap.breakpoints);
 
       if (ad) {
         ad.defineSizeMapping(mapping);
       } else {
+        sendLog('displayAd()', 'No ad available to display - the div was either not defined or an ad with the same slot name already exists on the page', slotName);
         return false;
       }
 
       if (sizemap.refresh) {
+        sendLog('displayAd()', 'Attaching resize listener to the ad with this slot name and sizemap defined', slotName);
         setResizeListener({
           ad,
           slotName: fullSlotName,
@@ -223,6 +229,7 @@ export class ArcAds {
     }
 
     if (dimensions && bidding && ((bidding.amazon && bidding.amazon.enabled) || (bidding.prebid && bidding.prebid.enabled))) {
+      sendLog('displayAd()', 'Fetching bids for ad with this slot name', slotName);
       fetchBids({
         ad,
         id,
@@ -234,6 +241,7 @@ export class ArcAds {
         breakpoints: safebreakpoints
       });
     } else if (!window.blockArcAdsPrebid) {
+      sendLog('displayAd()', 'Refreshing ad with this slot name', slotName);
       refreshSlot({
         ad,
         prerender,
@@ -254,6 +262,7 @@ export class ArcAds {
     // if no ads have been accumulated to send out together
     // do nothing, return
     if (this.adsList && this.adsList.length < 1) {
+      sendLog('sendSingleCallAds()', 'No ads have been reserved on the page', null);
       return false;
     }
     //ensure library is present and able to send out SRA ads
diff --git a/src/services/gpt.js b/src/services/gpt.js
index 4a0ba61..e456340 100644
--- a/src/services/gpt.js
+++ b/src/services/gpt.js
@@ -1,5 +1,6 @@
 import { appendResource } from '../util/resources';
 import { expandQueryString } from '../util/query';
+import { sendLog } from '../util/log';
 
 /**
 * @desc Initializes the Google Publisher tag scripts.
@@ -8,7 +9,8 @@ export function initializeGPT() {
   window.googletag = window.googletag || {};
   window.googletag.cmd = window.googletag.cmd || [];
 
-  appendResource('script', '//www.googletagservices.com/tag/js/gpt.js', true, true);
+  appendResource('script', '//securepubads.g.doubleclick.net/tag/js/gpt.js', true, true);
+  sendLog('initializeGPT()', 'Appended googletag script to the head tag of the page.', null);
 }
 
 /**
@@ -86,11 +88,13 @@ export function dfpSettings(handleSlotRenderEnded) {
   window.googletag.pubads().enableAsyncRendering();
 
   if (this.collapseEmptyDivs) {
+    sendLog('dfpSettings()', 'This wrapper is set to collapse any empty divs.', null);
     window.googletag.pubads().collapseEmptyDivs();
   }
   window.googletag.enableServices();
 
   if (handleSlotRenderEnded) {
+    sendLog('dfpSettings()', 'This wrapper has a function to call upon the slot render ending.', null);
     window.googletag.pubads().addEventListener('slotRenderEnded', handleSlotRenderEnded);
   }
 }
diff --git a/src/services/headerbidding.js b/src/services/headerbidding.js
index 92e3294..78f30f8 100644
--- a/src/services/headerbidding.js
+++ b/src/services/headerbidding.js
@@ -1,6 +1,7 @@
 import { fetchPrebidBids, queuePrebidCommand } from './prebid';
 import { fetchAmazonBids, queueAmazonCommand } from './amazon';
 import { refreshSlot } from './gpt';
+import { sendLog } from '../util/log';
 
 /**
 * @desc Initializes all header bidding services and appends the applicable scripts to the page.
@@ -13,6 +14,7 @@ export function initializeBiddingServices({
   amazon = false
 }) {
   if (window.arcBiddingReady) {
+    sendLog('initializeBiddingServices()', 'Header bidding has been previously initialized', null);
     return;
   }
 
@@ -26,6 +28,7 @@ export function initializeBiddingServices({
       }
       resolve('Prebid has been initialized');
     } else {
+      sendLog('initializeBiddingServices()', 'Prebid is not enabled on this wrapper.', null);
       resolve('Prebid is not enabled on the wrapper...');
     }
   });
@@ -45,6 +48,7 @@ export function initializeBiddingServices({
       } else {
         console.warn(`ArcAds: Missing Amazon account id. 
           Documentation: https://github.com/wapopartners/arc-ads#amazon-tama9`);
+        sendLog('initializeBiddingServices()', 'Amazon is not enabled on this wrapper.', null);
         resolve('Amazon is not enabled on the wrapper...');
       }
     } else {
diff --git a/src/services/sizemapping.js b/src/services/sizemapping.js
index 5cfda22..2f9984c 100644
--- a/src/services/sizemapping.js
+++ b/src/services/sizemapping.js
@@ -1,6 +1,7 @@
 import { debounce } from '../util/debounce';
 import { fetchBids } from './headerbidding';
 import { refreshSlot } from './gpt';
+import { sendLog } from '../util/log';
 
 /** @desc An object containing all of the size map refresh event listeners and correlators for size mapping. **/
 export const sizemapListeners = {};
@@ -69,6 +70,7 @@ export function parseSizeMappings(sizeMappings) {
 
     return result;
   } catch (e) {
+    sendLog('parseSizeMappings()', 'invalid size mapping', null);
     // Fallback to last size mapping supplied if there's an invalid mapping provided
     return sizeMappings[sizeMappings.length - 1][1];
   }
diff --git a/src/util/log.js b/src/util/log.js
new file mode 100644
index 0000000..4f6e5d0
--- /dev/null
+++ b/src/util/log.js
@@ -0,0 +1,22 @@
+import anylogger from 'anylogger';
+import 'anylogger-console';
+/**
+* @desc Determines whether or not to log based on a url param. Takes description as a parameter and returns log.
+* @param {string} description - The description that should go in the log.
+**/
+export function sendLog(parentFunc, description, slotName) {
+  try {
+    if ((new URLSearchParams(window.location.search)).get('debug') === 'true') {
+      const log = anylogger('arcads.js');
+      log({
+        service: 'ArcAds',
+        timestamp: `${new Date()}`,
+        'logging from': parentFunc,
+        description,
+        slotName
+      });
+    }
+  } catch (error) {
+    console.error(error);
+  }
+}