introductionan, average, including, sites, applications, social, networks, interactions, created, expectations, users, regard, experience, furthermore, faster, increasing, addition, benet, fullling, user, aect, business, metrics, conversion, percentage, desired, action, optimisation, results, actions, trac, walmart, mozilla, studied, eect, dierent, measuring, lack, segmentation, populations, generalised, thesis, problem, context, transferwise, growing, nancial, technology, diverse, organisation, knowledge, whether, prioritise, optimising, compared, feature, optimise, segments, address, contributions, perceived, dened, specically, solution, collecting, within, production, environment, implemented, dashboard, application, initial, analysis, relations, acquisition, channels, conducted, remainder, structured, chapter, organisational, implementation, data, collection, explained, requirements, implications, limitations, presented, conclusion, backgroundthis, concepts, worked, rst, section, denes, represent, overview, methods, appropriate, metric, success, comparison, analyse, previous, capability, nal, measured, waiting, includes, server, requested, client, process, received, assets, requests, [newb], according, theperformance, ruleformulated, based, archive, response, therefore, realistic, quantiable, reduced, meanings, browsers, dispatch, events, signal, occurrences, network, activity, interaction, observed, using, event, listeners, rely, theloador, thedomcontentloaded, theloadevent, required, resources, downloaded, processed, [gri], domcontentloadedmarks, document, completely, loaded, parsed, [mdna], popularity, historical, related, ease, images, onload, triggered, onloadwas, standard, across, versions, [mdnb], anddomcontentloadedhas, support, modern, javascript, progressive, rendering, domcontentloadedres, andloadhappens, [den], thatloaddoes, correlate, perceives, demonstrated, comparing, experiences, amazon, gmail, rendered, butloaddoes, gmailloadhappens, thus, traditional, reect, accurately, attempts, dene, eectively, represents, userperceived, creating, standardised, deemed, dicult, recommended, furthest, advancements, topic, google, centric, performance, metrics[wal], formulates, shown, participated, timing, working, draft, denitions, align, browser, renders, default, contentful, text, image, non, canvas, sincefirst, meaningful, andtime, interactive, considered, dening, added, accordingly, developers, knowing, loosely, visually, capable, responding, input, example, corresponding, [wal], happening, usable, representing, labeledusercentric, metrics[iri], milestone, timings[web], anduser, emphasis, perception, termuser, preferred, loadanddomcontentloaded, actionable, insights, monitored, monitoring, generally, categories, synthetic, monitoringandreal, asactive, consists, runningsynthetic, testssimulating, site, intervals, testing, stress, launch, competitive, benchmarking, digging, details, [zem], limited, combination, congurations, spectrum, alternatively, aspassive, geographic, location, properties, channel, contribute, active, similar, information, nature, ultimately, benets, complementary, various, exist, supporting, include, mpulse, [soab], speedcurve, [spe], appdynamics, [app], dynatrace, [dyn], newrelic, [newa], pingdom, [pin], source, boomerang, [soaa], manually, analytics, [goo], mixpanel, [mixa], custom, theuser, timingapi, measurement, interface, marked, snippet, moreover, adding, monitor, registrations, purchases, revenue, popular, indicator, popularised, main, whena, showing, variants, nd, variant, eective, aconversionhappens, measurable, clickthrough, registration, download, purchase, denition, ofconversion, calculated, dividing, converted, timeframe, formula, calculating, maximising, larger, attract, tting, [qua], baseline, isolation, exibility, nding, subset, funnel, leading, sequence, [bul], investigating, landing, consist, commerce, product, ensures, reected, easily, supported, [mixb], [hea], complications, analysing, gathering, airbnb, opt, internal, frameworks, interplay, variable, needed, determined, factors, ect, numerous, contributing, hence, industry, reaching, recent, academic, research, online, aiming, implementing, features, carried, selling, proving, importance, published, evolved, noticeably, earliest, originates, reported, delay, gure, quoted, expectation, albeit, method, result, detail, conversely, akamai, retail, comprised, roughly, billion, comprehensible, approaches, prevail, firstly, dierence, tookxseconds, longer, relative, higher, diers, claried, firefox, increase, decrease, conversions, improvement, increased, experienced, ndings, showed, resulting, lower, median, slower, vs, averages, converting, simplistic, heuristics, multiple, aects, optimised, segmented, device, parameters, unstudied, dierences, vary, signicantly, suggests, reliable, specic, performing, mainly, attempted, natively, request, transaction, specied, trigger, validated, although, universal, requires, setup, quality, alignment, tracked, founded, estonian, expatriates, taavet, hinrikus, kristo, rmann, [tra], mission, borders, convenient, eventually, achieve, oers, series, products, international, transfer, borderless, payouts, transferred, fees, saved, currency, employees, oces, structure, organised, autonomous, independent, focused, problems, [content, omitted, containing, condential, information], tracking, conclusionthe, solve, solved, collected, secondly, thirdly, creation, improving, optimisations, existing, connection, biggest, smallest, transferable, generalisable, opportunities, future, improvements, logistic, regression, quantify, ne, grained, manner