# cs491-backend-2026.firebaseapp.com — Recorded security evidence | PhishDestroy

Content language: English
Canonical HTML report: https://phishdestroy.io/domain/cs491-backend-2026.firebaseapp.com/
Machine-readable companion: https://phishdestroy.io/domain/cs491-backend-2026.firebaseapp.com/llm.txt

## Summary

PhishDestroy stores a threat-intelligence record for this domain.
This document reports the latest stored fields; it is not a real-time guarantee of availability or safety.

## Stored observations

- Listed by PhishDestroy: yes
- Availability at last stored check: observed active
- First observed by PhishDestroy: 2026-10-25 01:12:57 UTC
- Last availability or vendor check: 2026-11-01 02:55:43 UTC
- Stored record updated: 2026-11-01 03:21:37 UTC
- VirusTotal detections in the stored snapshot: 18/92
- Independent public blocklist matches in the stored snapshot: 0
- Google Safe Browsing stored result: checked_clean

## Stored infrastructure

- Observed IP address: 199.36.158.100
- Registrar in stored WHOIS data: Google LLC
- Last stored HTTP status: 200
- Registration date (registry RDAP, firebaseapp.com): 2012-10-15 18:12:22 UTC

## Evidence links

- URLScan report: https://urlscan.io/result/01a1709c-533a-73ab-8db6-91b872284175/
- VirusTotal domain view: https://www.virustotal.com/gui/domain/cs491-backend-2026.firebaseapp.com
- Certificate Transparency search: https://crt.sh/?q=%25.cs491-backend-2026.firebaseapp.com
- Web Archive lookup: https://web.archive.org/web/*/https://cs491-backend-2026.firebaseapp.com/

## Corrections

- Appeal or correct this record: https://phishdestroy.io/appeals/
- Methodology and help: https://phishdestroy.io/faq

## Public report package

PhishDestroy stores a record for cs491-backend-2026.firebaseapp.com. Source observations are dated separately; missing checks do not establish safety.

PhishDestroy stores a record for cs491-backend-2026.firebaseapp.com. Source observations are dated separately; missing checks do not establish safety.

A reviewed analysis is not available for this text revision. Consult the dated source records below.
Package revision: 9dec6b73ceb3f69b1a8aaccfe4d3d8b536eb35b33b2183d59d87ccd65d0c8971
Source facts (timestamps as stored): {"record_id":1653801,"first_recorded_at":"2026-10-25 02:12:57","virustotal":{"source":"VirusTotal","scope":"unknown","result_state":"complete","numerator":18,"denominator":92,"malicious":18,"suspicious":0,"vendors":{"DNS8":"phishing","ESET":"phishing","VIPRE":"phishing","G-Data":"phishing","Lionic":"phishing","Sophos":"phishing","CyRadar":"phishing","Webroot":"malicious","Fortinet":"phishing","SOCRadar":"phishing","LevelBlue":"phishing","Seclookup":"malicious","Gridinsoft":"phishing","BitDefender":"phishing","Criminal IP":"phishing","Chong Lua Dao":"malicious","alphaMountain.ai":"phishing","Forcepoint ThreatSeeker":"phishing"},"observed_at":"2026-10-25T01:52:28Z","checked_at":"2026-10-27 04:00:33","fetched_at":"2026-10-25T02:13:54Z","time_basis":"UTC (provider ISO timestamps)","stored_summary":{"source":"VirusTotal","scope":"unknown","result_state":"observed","numerator":18,"denominator":92,"malicious":null,"suspicious":null,"vendors":["Criminal IP","alphaMountain.ai","BitDefender","Chong Lua Dao","CyRadar","DNS8","ESET","Forcepoint ThreatSeeker","Fortinet","G-Data","Gridinsoft","LevelBlue","Lionic","Seclookup","SOCRadar","Sophos","VIPRE","Webroot"],"observed_at":"2026-10-25 01:52:28","checked_at":"2026-10-27 04:00:33","fetched_at":"2026-10-27 03:00:33","time_basis":"as stored; legacy timezone not established"}},"google_safe_browsing":{"source":"Google Safe Browsing","state":"checked_clean","verdict":0,"checked_at":"2026-10-31 12:00:33"},"spamhaus":{"source":"Spamhaus","verdict":null,"checked_at":"2026-10-25 04:30:58"},"availability":{"source":"stored HTTP observation","state":"alive","observed_at":"2026-11-01 03:55:43"}}

## Stored page captures

- Primary capture: https://urlscan.io/screenshots/01a1709c-533a-73ab-8db6-91b872284175.png
  Captured: 2026-10-25 01:12:57 UTC
- URLScan capture 1: https://screenshots.phishdestroy.io/01a1709c-533a-73ab-8db6-91b872284175.png
  Captured: 2026-10-25 01:12:57 UTC
  Source report: https://urlscan.io/result/01a1709c-533a-73ab-8db6-91b872284175/
- URLScan · 2026-10-25: https://screenshots.phishdestroy.io/us/01a170a3-d5d4-7464-b5ab-cf45a5bd3851.png
  Captured: 2026-10-25 01:19:13 UTC
  Source report: https://urlscan.io/result/01a170a3-d5d4-7464-b5ab-cf45a5bd3851/
  SHA-256: 13eec48ca6e719fe9e05473b42af57001b37f30327e4414efb975617d05fdae9
- URLScan · 2026-10-25: https://screenshots.phishdestroy.io/us/01a170a4-a551-70e2-ad97-934046727ec0.png
  Captured: 2026-10-25 01:20:07 UTC
  Source report: https://urlscan.io/result/01a170a4-a551-70e2-ad97-934046727ec0/
  SHA-256: a3984022ec1baa497a42ceec0b3c8b8aaa717c11eb7ccc41da1f37a31b367c25

## Collected source observations

Provider observations retain their own timestamps. Capture links do not establish image content. Shared infrastructure does not identify an operator.
```json
{
    "urlscan": {
        "v": 1,
        "fetched_at": "2026-10-25T02:13:36Z",
        "uuid": "01a1709c-533a-73ab-8db6-91b872284175",
        "scanned_at": "2026-10-25T01:11:01Z",
        "final_url": "https://cs491-backend-2026.firebaseapp.com/",
        "status": 200,
        "redirected": "https-only",
        "redirects": [
            {
                "to": "https://cs491-backend-2026.firebaseapp.com/",
                "from": "http://cs491-backend-2026.firebaseapp.com/",
                "status": 307
            }
        ],
        "ip": "199.36.158.100",
        "domains": [
            "cdn-icons-png.flaticon.com"
        ],
        "ips": [
            "23.53.41.242",
            "199.36.158.100"
        ],
        "asns": [
            "20940",
            "54113"
        ],
        "countries": [
            "DE",
            "US"
        ],
        "link_domains": [
            "accounts.thelendiingcorporation.com",
            "office.hadspemquarry.com"
        ],
        "doc_hash": "04d05978fdb111358073ab0524e5c1fafc0826615c206987618416b8bd8a4747",
        "domain_age_days": 226,
        "apex_age_days": 226,
        "tls_age_days": 31,
        "tls_valid_days": 89,
        "requests": 6,
        "verdicts": {
            "engines": {
                "tags": [
                    "urlscan-ml",
                    "urlscan-ml-60c5e22"
                ],
                "score": 99,
                "malicious": true
            },
            "overall": {
                "score": 0,
                "malicious": false
            }
        },
        "headers": {
            "content-type": "image/png"
        }
    },
    "vt": {
        "v": 1,
        "fetched_at": "2026-10-25T02:13:54Z",
        "analysis_at": "2026-10-25T01:52:28Z",
        "stats": {
            "timeout": 0,
            "harmless": 45,
            "malicious": 18,
            "suspicious": 0,
            "undetected": 29
        },
        "detections": {
            "DNS8": "phishing",
            "ESET": "phishing",
            "VIPRE": "phishing",
            "G-Data": "phishing",
            "Lionic": "phishing",
            "Sophos": "phishing",
            "CyRadar": "phishing",
            "Webroot": "malicious",
            "Fortinet": "phishing",
            "SOCRadar": "phishing",
            "LevelBlue": "phishing",
            "Seclookup": "malicious",
            "Gridinsoft": "phishing",
            "BitDefender": "phishing",
            "Criminal IP": "phishing",
            "Chong Lua Dao": "malicious",
            "alphaMountain.ai": "phishing",
            "Forcepoint ThreatSeeker": "phishing"
        },
        "reputation": 0,
        "tags": [
            "dga"
        ],
        "registrar": "MarkMonitor Inc.",
        "created": "2012-10-15T18:12:22Z",
        "expires": "2027-10-15T18:12:22Z",
        "updated": "2026-09-13T10:18:21Z",
        "first_seen": "2026-03-12T01:36:07Z",
        "dns": [
            {
                "ttl": 300,
                "type": "TXT",
                "value": "v=DKIM1; k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDPtW5iwpXVPiH5FzJ7Nrl8USzuY9zqqzjE0D1r04xDN6qwziDnmgcFNNfMewVKN2D1O+2J9N14hRprzByFwfQW76yojh54Xu3uSbQ3JP0A7k8o8GutRF8zbFUA8n0ZH2y0cIEjMliXY4W4LwPA7m4q0ObmvSjhd63O9d8z1XkUBwIDAQAB"
            },
            {
                "ttl": 300,
                "type": "A",
                "value": "199.36.158.100"
            },
            {
                "ttl": 300,
                "type": "AAAA",
                "value": "2620:0:890::100"
            },
            {
                "ttl": 300,
                "type": "TXT",
                "value": "v=spf1 redirect=_spf.google.com"
            }
        ],
        "dns_at": "2026-10-25T01:57:51Z",
        "jarm": "29d3fd00029d29d00041d41d00041d6b5eefa2404a56c2ced79a0d16afe36c",
        "cert": {
            "san": [
                "firebaseapp.com",
                "*.firebaseapp.com"
            ],
            "issuer": "Google Trust Services / WR4",
            "serial": "6739a2897e2a0d3b0ae167cf7c0ccf9f",
            "sha256": "044f879fc66c5b0ffe5f059867a14d1245a8f289de612e1dadc662f7cfbf44a6",
            "subject": "firebaseapp.com",
            "valid_to": "2026-12-22T18:00:28Z",
            "valid_from": "2026-09-23T18:00:29Z"
        },
        "whois": {
            "registrar": "MarkMonitor Inc.",
            "registrar_iana_id": "292",
            "registrar_url": "http://www.markmonitor.com",
            "created": "2012-10-15T18:12:22Z",
            "updated": "2026-09-13T10:18:21Z",
            "expires": "2027-10-15T00:00:00Z",
            "status": [
                "clientDeleteProhibited",
                "clientTransferProhibited",
                "clientUpdateProhibited"
            ],
            "nameservers": [
                "ns-cloud-c1.googledomains.com",
                "ns-cloud-c2.googledomains.com",
                "ns-cloud-c3.googledomains.com",
                "ns-cloud-c4.googledomains.com"
            ],
            "dnssec": "unsigned"
        }
    },
    "webcheck": {
        "v": 1,
        "fetched_at": "2026-10-25T01:26:19Z",
        "mail_config": {
            "spf": "v=spf1 redirect=_spf.google.com",
            "dkim": [
                "default",
                "google",
                "selector1",
                "selector2",
                "k1",
                "k2",
                "k3",
                "s1"
            ],
            "dkim_bits": 1024,
            "spf_lookups": 1
        },
        "caa_records": {
            "count": 1,
            "domain": "firebaseapp.com",
            "issuers": [
                "pki.goog"
            ]
        },
        "block_lists": {
            "resolvers": 12,
            "blocked_by": [
                "CloudFlare Family"
            ],
            "blocked_count": 1
        },
        "social_tags": {
            "title": "Authentication Required"
        },
        "trackers": {
            "requests": 2
        },
        "mixed_content": {
            "third_party_scripts": 0
        },
        "status": {
            "up": true,
            "code": 200,
            "timings": {
                "dns": 3,
                "tls": 20,
                "wait": 18,
                "connect": 23,
                "download": 0
            },
            "response_ms": 64
        },
        "tls_connection": {
            "alpn": "h2",
            "cipher": "TLS_AES_128_GCM_SHA256",
            "protocol": "TLSv1.3",
            "versions": [
                "TLSv1.2",
                "TLSv1.3"
            ],
            "authorized": true,
            "forward_secrecy": true
        },
        "ports": {
            "open": [
                80,
                443
            ]
        },
        "carbon": {
            "bytes": 6288,
            "co2_grams": 0.0002,
            "cleaner_than": 82
        },
        "dns_server": {
            "ns": [
                {
                    "ip": "216.239.32.108",
                    "host": "ns-cloud-c1.googledomains.com"
                },
                {
                    "ip": "216.239.38.108",
                    "host": "ns-cloud-c4.googledomains.com"
                },
                {
                    "ip": "216.239.36.108",
                    "host": "ns-cloud-c3.googledomains.com"
                },
                {
                    "ip": "216.239.34.108",
                    "host": "ns-cloud-c2.googledomains.com"
                }
            ],
            "zone": "firebaseapp.com"
        },
        "location": {
            "ip": "2620:0:890::100",
            "asn": "54113",
            "org": "Fastly, Inc.",
            "city": "Mountain View",
            "country": "US"
        },
        "ssl": {
            "issuer": "Google Trust Services / WR4",
            "subject": "firebaseapp.com"
        },
        "dns": {
            "A": [
                "199.36.158.100"
            ],
            "TXT": [
                "v=DKIM1; k=rsa; t=s; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDPtW5iwpXVPiH5FzJ7Nrl8USzuY9zqqzjE0D1r04xDN6qwziDnmgcFNNfMewVKN2D1O+2J9N14hRprzByFwfQW76yojh54Xu3uSbQ3JP0A7k8o8GutRF8zbFUA8n0ZH2y0cIEjMliXY4W4LwPA7m4q0ObmvSjhd63O9d8z1XkUBwIDAQAB",
                "v=spf1 redirect=_spf.google.com"
            ],
            "AAAA": [
                "2620:0:890::100"
            ]
        },
        "dnssec": {
            "ds": false,
            "rrsig": false,
            "dnskey": false
        },
        "hsts": {
            "header": "max-age=31556926; includeSubDomains; preload",
            "message": "Site is compatible with the HSTS preload list!",
            "compatible": true
        },
        "http_security": {
            "xFrameOptions": false,
            "referrerPolicy": false,
            "xXSSProtection": false,
            "permissionsPolicy": false,
            "xContentTypeOptions": false,
            "contentSecurityPolicy": false,
            "strictTransportPolicy": "max-age=31556926; includeSubDomains; preload",
            "crossOriginOpenerPolicy": false,
            "crossOriginEmbedderPolicy": false,
            "crossOriginResourcePolicy": false
        },
        "get_ip": {
            "ip": "2620:0:890::100",
            "family": 6
        },
        "redirects": {
            "chain": [
                "https://cs491-backend-2026.firebaseapp.com"
            ]
        },
        "linked_pages": {
            "external": [
                "https://accounts.thelendiingcorporation.com/EknNnvpW",
                "https://office.hadspemquarry.com/UXWjyeyg"
            ],
            "external_count": 2
        },
        "headers": {
            "headers": {
                "content-type": "text/html; charset=utf-8",
                "strict-transport-security": "max-age=31556926; includeSubDomains; preload"
            }
        }
    }
}
```