Network Traffic JSON format

Standard JSON format can by found in w3c repo.

In addition to standard HAR structure, Cerberus will add a stat json entry in top level containing some agregated data in order to make controls easier. That stat section will be feed by checking every hit performed by the tested application. Every hit will enrish the total section (excepted ingnored entries that will feed ignore section). They will also feed one of the following section : either internal, either thirdparty (each will then be spread per thirdparty ThirdPartyN) or unknown if the hit cannot match one of the application domain or one of the Third Party domain.

"stat": {
    "total":{
        "hosts": [
            "www.laredoute.fr",
            "fonts.googleapis.com",
            "laredoutemobile.commander1.com",
            "privacy.trustcommander.net"
        ],
        "size":{
            "sum": 2286467,
            "max": 125109,
            "urlMax": "https://www.laredoute.com/mar/toto.jpg"
        },
        "requests":{
            "nb": 117,
            "nb100": 0,
            "nb101": 0,
            "nb1xx": 0,
            "nb200": 111,
            "nb201": 0,
            "nb2xx": 111,
            "nb300": 0,
            "nb301": 2,
            "nb302": 2,
            "nb307": 0,
            "nb3xx": 4,
            "nb400": 0,
            "nb403": 0,
            "nb404": 1,
            "nb4xx": 1,
            "nb500": 0,
            "nb5xx": 0,
            "nbError": 1,
            "urlError": [ "https://www.lrd.co/mar/to.jpg"]
        },
        "time":{
            "totalDuration": 18062,
            "max": 4512,
            "urlMax": "https://latem.commander1.com/dc3/?chn=D",
            "avg": 455,
            "sum": 53249,
            "firstURL": "http://www.laredoute.fr/",
            "firstStart": "2020-02-25T20:15:16.048Z",
            "firstStartR": 0,
            "firstEnd": "2020-02-25T20:15:16.95Z",
            "firstEndR": 47,
            "firstDuration": 47,
            "lastURL": "https://p.trust.net/p-c/?id=1&site=12",
            "lastStart": "2020-02-25T20:15:29.655Z",
            "lastStartR": 13607,
            "lastEnd": "2020-02-25T20:15:34.110Z",
            "lastEndR": 18062,
            "lastDuration": 4455
        },
        "type":{
            "css":{
                "requests": 2,
                "sizeSum": 125109,
                "sizeMax": 2286467,
                "urlMax": "https://www.laredoute.com/mar/12.css"
            },
            "img":{...},
            "other":{...},
            "js":{...},
            "html":{...},
            "content":{...},
            "media":{...},
            "font":{...}
        }
    },
    "internal":{...},
    "nbThirdParty":2,
    "thirdparty":{
        "ThirdParty1":{...},
        "ThirdParty2":{...}
    },
    "ignore":{...},
    "unknown":{...},
    "requests": [
        {
            "size": 79565,
            "provider": "internal",
            "indexName": "n/a",
            "domain": "www.domain.com",
            "httpStatus": 200,
            "start": 0,
            "index": 0,
            "time": 325,
            "queryString": {
                "txn_id": "o2hke",
                "tw_sale_amount": "0",
                "p_user_id": "0",
                "tw_order_quantity": "0"
            },
            "contentType": "html",
            "url": "https://www.domain.com/"
        },
        {...}
    ]
}

Detail explanation on time section :

totalDuration

duration in ms between the start of the first request and the end of the last request.

sum

sum of duration in ms spent in all requests.

max

duration in ms of the longuest request (that correspond to urlMax)

avg

average duration in ms of all requests.

firstXXX

first request definition

lastXXX

last request definition

Cerberus will determine if a hit must be ignored (and appear in ignore section) by feeding parameter cerberus_webperf_ignoredomainlist with coma separated domains to ignore.

Cerberus will get and guess the ThirdPartyN from thirdparty section from a json file that can be retrieve from the following repo.

The file should be available from Cerberus from the location provided by the parameter cerberus_webperf_thirdpartyfilepath.

If parameter is empty or file not found by Cerberus, no third party will be guess.

You can also add extra third party from the Cerberus GUI by adding a public invariant WEBPERFTHIRDPARTY with first attribute with the list of domain with coma separated format.

internal section is populated from the URL domain list defined on the corresponding application / environment. all hosts should be defined on the domain field with coma separated format. In case the domain field is empty, Cerberus will guess it from the application URL.

Any host URL that does not match either the cerberus_webperf_ignoredomainlist parameter, the ThirdParty definition file from parameter cerberus_webperf_thirdpartyfilepath, the WEBPERFTHIRDPARTY public invariant or list of application domain will appear in the unknown section.

At the end of the execution, Cerberus will automatically execute 'waitNetworkTrafficIdle' action in order to secure that requests are no longer performed. This is used in order to secure that the collected stats are complete and does not miss some important hits.