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                        "body": "TU Delft | Technische Universiteit Delft | Challenge. Change. Impact! Activeer hoog contrast Ga naar hoofdcontent TU Delft homepage Studenten & OnderwijsOpleidingenToelating en aanmeldingStudievoorlichtingStudentenportalLifelong LearningOnderzoekMaatschappelijke uitdagingenFaculteiten en institutenOnderzoeksfaciliteitenPhDsStoriesGewonnen Prijzen & BeurzenInnovatie & ImpactZakelijk samenwerkenPioneering TechProject CasesStarten met ondernemenCommunityCampus LifeAlumniEvenementenSociale veiligheidScience CentreOver TU DelftZoek medewerkersContactActueelAgendaLibraryVacaturesOrganisatieStrategieUniversiteitsfonds Zoeken Studenten & Onderwijs Menu openen OpleidingenToelating en aanmeldingStudievoorlichtingStudentenportalLifelong Learning Onderzoek Menu openen Maatschappelijke uitdagingenFaculteiten en institutenOnderzoeksfaciliteitenPhDsStoriesGewonnen Prijzen & Beurzen Innovatie & Impact Menu openen Zakelijk samenwerkenPioneering TechProject CasesStarten met ondernemen Community Menu openen Campus LifeAlumniEvenementenSociale veiligheidScience Centre Over TU Delft Menu openen Zoek medewerkersContactActueelAgendaLibraryVacaturesOrganisatieStrategieUniversiteitsfonds facebook instagram youtube linkedin whatsapp whatsapp English Activeer hoog contrast Sluit menu Zoeken Sluit zoek Story of Team Science De woningopgave Rigoureus anders nadenken over bouwen en wonen Kom naar de Bachelor Open Campus Dag 20 maart 2026 Meld je hier aan OpleidingenBekijk alle bachelorsBekijk alle masters Impact for a better society Carousel Impact for a better society Amineh onderzoekt hoe sociale cohesie wijken veerkrachtiger maakt Story of Science | Weerbare wijken Lees meer Beter voorbereid op vacuümbevallingen in lage- en middeninkomenslanden Student Story | Masterstudent Merdan werkt aan betaalbaar, modulair en anatomisch correct trainingsmodel voor vacuümgeassisteerde bevallingen Lees meer Marie Anne's missie om werkplek-IT te verduurzamen Student Story | Digitalisering en duurzaamheid Lees meer Stadsgeluiden vangen met hulp van inwoners en AI-sensoren Story of Science | Samen met inwoners van Delft onderzocht Lion welke geluiden in de stad aanwezig zijn Lees meer Onze maatschappelijke uitdagingen Onze maatschappelijke uitdagingen Nieuws Nieuws Korte film “De klimaatstrijders” wint prestigieuze Gouden Reiger Negen ideeën die de wereld van morgen schoner, veiliger en veerkrachtiger maken Tijdens de Best Climate Action & Energy Paper Award-ceremonie, dinsdag 24 maart 2026, pitchen negen jonge wetenschappers van de TU Delft hun onderzoeksresultaten. Negen frisse inzichten – soms zelfs baanbrekend – die niet alleen de problemen van vandaag tackelen, maar ook het Europa van morgen schoner, veiliger en veerkrachtiger maken. Ena Voûte nieuw lid raad van bestuur NWO en domeinvoorzitter Toegepaste en Technische Wetenschappen TU Delft vestigt nationaal record met grootste menselijke pi-symbool Op dinsdag 3 maart 2026 om precies 15.14 uur heeft de TU Delft faculteit Elektrotechniek, Wiskunde en Informatica (EWI) een nationaal record gevestigd met het grootste menselijke π-symbool van Nederland. Met 550 deelnemers vormden studenten, medewerkers, alumni en andere geïnteresseerden gezamenlijk het iconische wiskundesymbool op het voetbalveld van locatie X op de campus in Delft. Vier Vici’s voor Delftse toponderzoekers De Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO) heeft in het domein Exacte en Natuurwetenschappen (ENW) aan vier Delftse wetenschappers een Vici-financiering toegekend van maximaal 1,5 miljoen euro. Hiermee kunnen zij gedurende vijf jaar ee…",
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                "label": "Strongest tag heuristic",
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                "label": "Trust score",
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                "value": "57/100",
                "tone": "caution",
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                "label": "Spam risk",
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                "label": "Quality score",
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                "detail": "Based on crawl quality, content completeness, and technical evidence."
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                "label": "Safety score",
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                "detail": "Higher is safer. Direct fraud signals can heavily cap this even when SEO signals look strong."
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                "label": "Infrastructure risk",
                "value": "0/100",
                "tone": "good",
                "detail": "Lower is better. This reflects the IP, registrar, and nameserver neighbourhood seen by the crawler."
            },
            {
                "label": "Evidence confidence",
                "value": "55/100",
                "tone": "caution",
                "detail": "Higher means the crawler had enough pages and registry evidence to make a stronger call."
            },
            {
                "label": "External evidence",
                "value": "Low",
                "tone": "unknown",
                "detail": "Quality of the structured search and review evidence cluster."
            },
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                "label": "External decision",
                "value": "Inconclusive",
                "tone": "unknown",
                "detail": "How third-party evidence compares with the current candidate tag."
            },
            {
                "label": "NSFW score",
                "value": "0/100",
                "tone": "good",
                "detail": "Context-aware adult-content detection with medical / educational false-positive reduction."
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                "label": "Registry stability",
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                "tone": "good",
                "detail": "Based on age, expiry runway, and the amount of ownership / registrar churn."
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                        "label": "Domain age",
                        "value": "38.7 years",
                        "tone": "good",
                        "detail": "Older domains generally carry more historical trust than very new ones."
                    },
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                        "label": "Stability score",
                        "value": "100/100",
                        "tone": "good",
                        "detail": "Penalised by registrar, ownership, and nameserver churn."
                    },
                    {
                        "label": "Days to expiry",
                        "value": "—",
                        "tone": "unknown",
                        "detail": "Very short renewal windows can be a weak trust signal."
                    },
                    {
                        "label": "Registrar / ownership changes",
                        "value": "0 / 0",
                        "tone": "good",
                        "detail": "Frequent ownership churn can weaken trust."
                    },
                    {
                        "label": "Nameserver changes",
                        "value": "0",
                        "tone": "good",
                        "detail": "Repeated infrastructure changes can indicate instability."
                    },
                    {
                        "label": "DNSSEC / privacy",
                        "value": "DNSSEC on · privacy off",
                        "tone": "good",
                        "detail": "DNSSEC strengthens DNS trust; privacy is neutral on its own."
                    }
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            {
                "title": "Reputation & search evidence",
                "items": [
                    {
                        "label": "Backlinks",
                        "value": "5",
                        "tone": "unknown",
                        "detail": "Broader backlink evidence usually improves confidence."
                    },
                    {
                        "label": "Referring domains",
                        "value": "5",
                        "tone": "caution",
                        "detail": "Unique linking domains are more useful than raw link volume."
                    },
                    {
                        "label": "Organic keywords",
                        "value": "95",
                        "tone": "caution",
                        "detail": "Search footprint helps distinguish real sites from thin shells."
                    },
                    {
                        "label": "Indexed pages",
                        "value": "68",
                        "tone": "caution",
                        "detail": "Larger index coverage usually means more evidence to classify from."
                    },
                    {
                        "label": "Brand strength",
                        "value": "92/100",
                        "tone": "good",
                        "detail": "Stronger brand signals reduce false positives for legitimate sites."
                    },
                    {
                        "label": "Risk label",
                        "value": "GOOD",
                        "tone": "unknown",
                        "detail": "This is the raw crawl / heuristic risk label feeding the tag model."
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                "title": "Crawl, content & technicals",
                "items": [
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                        "label": "HTTP status",
                        "value": "200",
                        "tone": "good",
                        "detail": "Healthy responses make classification more reliable."
                    },
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                        "value": "HTTPS OK · 215 ms",
                        "tone": "good",
                        "detail": "Slow or broken technical signals weaken confidence."
                    },
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                        "label": "Content words",
                        "value": "5,406",
                        "tone": "good",
                        "detail": "Thin pages are harder to trust and easier to manipulate."
                    },
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                        "label": "Schema / structure",
                        "value": "1 schema · meta · H1",
                        "tone": "caution",
                        "detail": "Structured markup and basic on-page hygiene improve quality confidence."
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                        "label": "Links on page",
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                        "tone": "good",
                        "detail": "Link patterns help detect thin directories and promo pages."
                    },
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                        "label": "Page speed / mobile",
                        "value": "100/100 · 92/100",
                        "tone": "good",
                        "detail": "Better technical quality generally reduces low-effort site patterns."
                    },
                    {
                        "label": "Crawl access",
                        "value": "Open",
                        "tone": "good",
                        "detail": "The crawler reached the site without an anti-bot challenge."
                    }
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                "title": "External evidence & explainability",
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                        "label": "Decision state",
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                        "tone": "unknown",
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                        "label": "Evidence quality",
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                        "tone": "unknown",
                        "detail": "Blends source trust, domain matching, evidence diversity, and freshness."
                    },
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                        "label": "Support vs contradiction",
                        "value": "0 / 0",
                        "tone": "unknown",
                        "detail": "Compares how much structured external evidence supports the candidate tag against evidence that contradicts it."
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                        "label": "Qualified risk sources",
                        "value": "No",
                        "tone": "good",
                        "detail": "Risk tags only promote from external evidence when source diversity or source trust thresholds are met."
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                        "label": "Uncertainty buffer",
                        "value": "Active",
                        "tone": "caution",
                        "detail": "Prevents thin or mixed external evidence from forcing a stronger tag than the evidence can justify."
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                "registrar_name": "Technische Universiteit Delft",
                "registrar_handle": "0000",
                "registrant_name": "Technische Universiteit Delft",
                "registrant_org": "",
                "registrant_country": "",
                "registrant_email": "",
                "abuse_email": "abuse@tudelft.nl",
                "created_date": "1987-07-23 00:00:00",
                "updated_date": "2025-10-09 14:11:56",
                "expires_date": null,
                "nameservers_json": "[\"ns1.surfnet.nl\",\"ns1.tudelft.nl\",\"ns1.zurich.surf.net\",\"ns2.surfnet.nl\",\"ns2.tudelft.nl\"]",
                "status_json": "[\"active\"]",
                "dnssec": "signed",
                "privacy_protected": 0,
                "content_hash": "257a12320c2f6049dfb2f39036ced9b118dc64ae5b48dee7c9a5204c82dac18f",
                "checked_at": "2026-04-19 07:47:47",
                "change_summary": "Periodic WHOIS snapshot refreshed with no major field changes.",
                "created_at": "2026-04-19 07:47:47"
            },
            {
                "id": 46240,
                "domain": "tudelft.nl",
                "source_type": "rdap",
                "registrar_name": "Technische Universiteit Delft",
                "registrar_handle": "0000",
                "registrant_name": "Technische Universiteit Delft",
                "registrant_org": "",
                "registrant_country": "",
                "registrant_email": "",
                "abuse_email": "abuse@tudelft.nl",
                "created_date": "1987-07-23 00:00:00",
                "updated_date": "2025-10-09 14:11:56",
                "expires_date": null,
                "nameservers_json": "[\"ns1.surfnet.nl\",\"ns1.tudelft.nl\",\"ns1.zurich.surf.net\",\"ns2.surfnet.nl\",\"ns2.tudelft.nl\"]",
                "status_json": "[\"active\"]",
                "dnssec": "signed",
                "privacy_protected": 0,
                "content_hash": "257a12320c2f6049dfb2f39036ced9b118dc64ae5b48dee7c9a5204c82dac18f",
                "checked_at": "2026-03-20 07:47:04",
                "change_summary": "Initial WHOIS snapshot captured.",
                "created_at": "2026-03-20 07:47:04"
            }
        ],
        "signals": {
            "age_years": 38.7,
            "days_to_expiry": null,
            "days_since_last_registry_update": 191,
            "stability_score": 100,
            "registrar_changes": 0,
            "ownership_changes": 0,
            "nameserver_changes": 0,
            "status_changes": 0,
            "history_entries": 2,
            "privacy_protected": false,
            "dnssec_enabled": true,
            "has_registrant_country": false,
            "registrant_country": "",
            "nameserver_count": 5,
            "status_count": 1
        }
    },
    "discovered_domain": {
        "id": 204682,
        "domain": "tudelft.nl",
        "first_seen_at": "2026-03-17 05:55:18",
        "last_crawled_at": "2026-04-19 07:48:03",
        "last_title": "TU Delft | Technische Universiteit Delft | Challenge. Change. Impact!",
        "last_http_status": 200,
        "discovered_from_domain": "yellowgrass.org",
        "depth": 3,
        "backlinks_count": 5,
        "rating_cache": 42,
        "spam_score": 24,
        "risk_label": "good",
        "category_name": "Business",
        "primary_country_code": "NL",
        "internal_links_count": 64,
        "external_links_count": 6,
        "social_profiles_count": 4,
        "content_word_count": 5406,
        "title_quality_score": 79,
        "has_meta_description": 1,
        "has_h1": 1,
        "language_code": "nl",
        "response_time_ms": 215,
        "robots_status": 0,
        "sitemap_status": 0,
        "sitemap_total_urls": 0,
        "quality_score": 92,
        "site_name": "TU Delft",
        "canonical_domain": "tudelft.nl",
        "favicon_present": 1,
        "schema_org_count": 1,
        "noindex_detected": 0,
        "feed_links_count": 0,
        "https_working": 1,
        "estimated_authority_score": 43,
        "trust_score": 75,
        "nsfw_score": 0,
        "overall_rank_estimate": 2055080,
        "primary_tag": "C",
        "tag_codes": "C,Uncertain",
        "manual_verified_status": "",
        "manual_tag_codes": "",
        "manual_rating_delta": 0,
        "manual_authority_delta": 0,
        "manual_trust_delta": 0,
        "manual_note": null,
        "manual_adjusted_by": null,
        "manual_adjusted_at": null,
        "manual_lock_scores": 0,
        "manual_lock_flags": 0,
        "crawl_blocked": 0,
        "crawl_blocked_by": "",
        "crawl_blocked_reason": null,
        "safety_score": 100,
        "fraud_score": 0,
        "legitimacy_score": 56,
        "infrastructure_risk_score": 0,
        "score_confidence": 53,
        "tag_confidence": 27,
        "category_confidence": 29,
        "deep_crawl_pages": 0,
        "resolved_ip": "130.161.128.82",
        "category_candidates_json": "[{\"category\":\"Business\",\"score\":22}]",
        "page_signals_json": "[]",
        "score_reasons_json": "[\"Category confidence was reduced, so the classifier fell back to the broader parent category.\",\"Trusted status now requires clean crawl access and stronger confidence, so this result was downgraded to caution.\",\"Overall rating is now capped by evidence confidence to prevent inflated scores from thin signals.\"]",
        "route_domain": "tudelft.nl",
        "display_domain": "tudelft.nl"
    },
    "explainability": {
        "summary": "tudelft.nl currently scores 68/100. The score is being shaped by a mixed signal profile rather than one dominant factor. Evidence confidence is moderate, so the score should settle further after more crawl depth or registry checks. This is an estimated profile rather than a manually tracked one. Crawler access looks clean.",
        "badges": [
            {
                "label": "Profile",
                "value": "Estimated profile",
                "tone": "unknown",
                "detail": null
            },
            {
                "label": "Evidence confidence",
                "value": "Moderate confidence",
                "tone": "caution",
                "detail": "54/100"
            },
            {
                "label": "Traffic confidence",
                "value": "Solid confidence",
                "tone": "caution",
                "detail": "62/100"
            },
            {
                "label": "Crawler access",
                "value": "Clean visibility",
                "tone": "good",
                "detail": null
            }
        ],
        "weighted_contributions": [
            {
                "label": "Quality system",
                "points": "+20.7",
                "tone": "caution",
                "detail": "Technical quality, crawl depth, page structure, and implementation hygiene. Current subsystem score: 61/100."
            },
            {
                "label": "Reputation system",
                "points": "+17.7",
                "tone": "caution",
                "detail": "Authority, search visibility, reach, engagement, and registry stability. Current subsystem score: 52/100."
            },
            {
                "label": "Safety system",
                "points": "+32.0",
                "tone": "good",
                "detail": "Fraud, spam, and trust signals from infrastructure, crawl, and registry evidence. Current subsystem score: 100/100."
            },
            {
                "label": "Risk clamp",
                "points": "-2.0",
                "tone": "risk",
                "detail": "Safety thresholds capped the final score until the risk profile improves."
            }
        ],
        "evidence_cards": [
            {
                "label": "Authority and trust",
                "value": "55/100 · trust 79/100",
                "tone": "caution",
                "detail": "239 monthly visitors, 95 organic keywords, brand completeness 92/100, engagement 83/100."
            },
            {
                "label": "Backlink and search evidence",
                "value": "5 referring domains",
                "tone": "good",
                "detail": "5 backlinks across 5 referring domains. Diversity 95/100; spam penalty 0."
            },
            {
                "label": "Registry and domain stability",
                "value": "38.7 years old",
                "tone": "good",
                "detail": "Stability 100/100 · age 38.7 years · registrar Technische Universiteit Delft."
            },
            {
                "label": "Safety and fraud posture",
                "value": "Safety 100/100 · fraud 0/100",
                "tone": "good",
                "detail": "Primary tag T · safety 100/100 · fraud 0/100."
            }
        ],
        "positives": [
            "Established domain age: 38.7 years.",
            "Low registrar / ownership churn with solid registry stability.",
            "Healthy crawl quality and on-page completeness.",
            "DNSSEC is enabled.",
            "Registry history looks stable, which supports legitimacy and trust.",
            "The domain has been registered for years, which usually improves trust confidence."
        ],
        "risks": [
            "External evidence was mixed or sparse, so the tag model keeps an uncertainty buffer instead of overcommitting."
        ],
        "freshness": [
            {
                "label": "Crawl evidence",
                "value": "2026-04-19 07:48:03",
                "tone": "good",
                "detail": "Crawl and page content sample. Age: 15s ago."
            },
            {
                "label": "WHOIS snapshot",
                "value": "2026-04-19 07:47:47",
                "tone": "good",
                "detail": "Registry profile and stability signals. Age: 31s ago."
            },
            {
                "label": "Keyword view",
                "value": "2026-04-19 07:48:18",
                "tone": "good",
                "detail": "Estimated visibility until tracked keyword snapshots exist. Age: 0s ago."
            },
            {
                "label": "Rank history",
                "value": "2026-04-19 07:48:18",
                "tone": "good",
                "detail": "Estimated trend derived from current profile and crawl signals. Age: 0s ago."
            },
            {
                "label": "Audience geography",
                "value": "Not captured yet",
                "tone": "unknown",
                "detail": "Audience mix is estimated from available signals rather than first-party audience logs."
            }
        ],
        "section_notes": {
            "audience": "Audience geography is estimated from category, country, traffic mix, and brand signals until first-party audience data is collected.",
            "keywords": "Top keywords are estimated from crawl language, brand, category, and visibility signals until tracked keyword snapshots are stored.",
            "history": "Rank history is estimated from the current profile because no stored history exists for this domain yet."
        },
        "base_weighted_score": 70,
        "fraud_clamp_penalty": 2,
        "final_score": 68
    },
    "insight_snapshot": {
        "version": 1,
        "generated_at": "2026-04-19T07:48:18+00:00",
        "domain": "tudelft.nl",
        "display_name": "TU Delft",
        "is_tracked": false,
        "is_estimated": true,
        "overall_score": 68,
        "authority_score": 55,
        "trust_score": 79,
        "safety_score": 100,
        "fraud_score": 0,
        "confidence_score": 54,
        "traffic_confidence": 62,
        "last_crawled_at": "2026-04-19 07:48:03",
        "crawl_blocked": false,
        "summary": "tudelft.nl currently scores 68/100. The score is being shaped by a mixed signal profile rather than one dominant factor. Evidence confidence is moderate, so the score should settle further after more crawl depth or registry checks. This is an estimated profile rather than a manually tracked one. Crawler access looks clean.",
        "badges": [
            {
                "label": "Profile",
                "value": "Estimated profile",
                "tone": "unknown",
                "detail": null
            },
            {
                "label": "Evidence confidence",
                "value": "Moderate confidence",
                "tone": "caution",
                "detail": "54/100"
            },
            {
                "label": "Traffic confidence",
                "value": "Solid confidence",
                "tone": "caution",
                "detail": "62/100"
            },
            {
                "label": "Crawler access",
                "value": "Clean visibility",
                "tone": "good",
                "detail": null
            }
        ],
        "top_positive_signals": [
            "Established domain age: 38.7 years.",
            "Low registrar / ownership churn with solid registry stability.",
            "Healthy crawl quality and on-page completeness.",
            "DNSSEC is enabled.",
            "Registry history looks stable, which supports legitimacy and trust."
        ],
        "top_risk_signals": [
            "External evidence was mixed or sparse, so the tag model keeps an uncertainty buffer instead of overcommitting."
        ],
        "freshness": [
            {
                "label": "Crawl evidence",
                "value": "2026-04-19 07:48:03",
                "tone": "good",
                "detail": "Crawl and page content sample. Age: 15s ago."
            },
            {
                "label": "WHOIS snapshot",
                "value": "2026-04-19 07:47:47",
                "tone": "good",
                "detail": "Registry profile and stability signals. Age: 31s ago."
            },
            {
                "label": "Keyword view",
                "value": "2026-04-19 07:48:18",
                "tone": "good",
                "detail": "Estimated visibility until tracked keyword snapshots exist. Age: 0s ago."
            },
            {
                "label": "Rank history",
                "value": "2026-04-19 07:48:18",
                "tone": "good",
                "detail": "Estimated trend derived from current profile and crawl signals. Age: 0s ago."
            },
            {
                "label": "Audience geography",
                "value": "Not captured yet",
                "tone": "unknown",
                "detail": "Audience mix is estimated from available signals rather than first-party audience logs."
            }
        ],
        "top_tags": [
            {
                "code": "T",
                "label": "Trusted",
                "tone": "good"
            },
            {
                "code": "Uncertain",
                "label": "Uncertain",
                "tone": "unknown"
            }
        ]
    },
    "is_tracked": false,
    "is_estimated": true,
    "live_state": {
        "status": "processing",
        "status_label": "Cache build running",
        "message": "The refreshed page cache is still being built for this domain.",
        "updated_at": "2026-04-19T10:52:37+00:00"
    },
    "refresh_state": {
        "canRequest": false,
        "queued": true,
        "processing": true,
        "stageKey": "cache-queued",
        "stageLabel": "Cache build running",
        "cooldownUntil": null,
        "message": "The refreshed page cache is still being built for this domain.",
        "action": "/domain/tudelft.nl/refresh",
        "isGuestCooldown": false,
        "cooldownSeconds": 0
    },
    "urlscan_report": {
        "domain": "tudelft.nl",
        "status": "error",
        "submitted_at": "2026-03-20T05:49:57+00:00",
        "completed_at": null,
        "last_checked_at": "2026-03-20T05:49:57+00:00",
        "last_error": "Rate limit for 'public' exceeded. Limit is 500 per hour. Reset in 601 seconds.",
        "submitted_url": "https://tudelft.nl/",
        "uuid": "",
        "result_url": "",
        "api_result_url": "",
        "visibility": "public",
        "summary": "urlscan.io scan submission failed.",
        "report": [],
        "report_summary": [],
        "is_fresh": false,
        "can_retry": true,
        "poll_after_seconds": 20
    }
}