Optus

Telecom & ISP Australiaoptus.com.auRank 73 of the most impersonated
Cert findings · 24 h
1
Cert findings · 7 days
3
3 reported or listed
Registered lookalikes
125
4 listed by a source or an address list
Official domains
6
verified from Optus's own sites and records

Certificate findings for Optus

Updated hourly · 2026-11-05 10:53 UTC

DomainSpoof matched these hostnames, from public certificate logs, to Optus's name or to lookalike spellings of its official domains. Each was reported or listed by one of our sources, or resolved to an address on Spamhaus DROP or DomainSpoof's phishing-host list.

Published now · 4 findings, grouped by hostname

  1. www.smartbio.me US · AS397273 · Render2 addresses
    ReportedShared platform · RenderReported by PhishTank as imitating OptusMX presentSPF ~allDMARC policy noneRegistered 4 mo ago
    DetailsHide
    Hostname
    www.smartbio.me
    First seen
    2026-11-04 17:41 UTC
    First published
    2026-11-04 18:05 UTC
    Listing
    PhishTank: first observed in the feed 2026-10-25 · still listed at the last successful feed check 2026-11-05 09:46 UTC
    DNS
    Resolves · checked 2026-11-04 18:17 UTC
    Reported
    PhishTank
    1. Observed in the PhishTank feed
    2. Certificate logged in CT
    3. We matched its certificate name
    4. Latest DNS check
    Certificate
    Issued by WR1 · precertificate
    Valid 2026-11-04 16:37 UTC to 2027-02-02 17:35 UTC
    Logged 2026-11-04 17:37 UTC in Geomys Tuscolo2027h1, entry 475,904,011
    SHA-256 64054bc2a55a5aa72b9f227a69ae13d46fc7251063db3fc384ca4940f8d87f7f
    Public key SHA-256 bbdbb888cc2d1773c206191d48e4b777534d7f7ff2f8762d394c8b296dbff107
    PhishTank
    PhishTank report #9161580
    Brand
    Optus
    Addresses
    216.24.57.16 · United States · AS397273 RENDER - Render · Render (shared platform)
    216.24.57.18 · United States · AS397273 RENDER - Render · Render (shared platform)
    Shared platform · Render
    Render (216.24.57.16, 216.24.57.18): a shared platform front end. The address serves every app deployed on the platform.
    Domain
    smartbio.me
    Registered
    2026-07-09 · IONOS SE
    MX
    Receives mail at mx00.ionos.com, mx01.ionos.com
    SPF
    SPF record with ~all: other senders soft-fail
    DMARC
    DMARC policy p=none: reports only
    Checked
    2026-11-04 18:05 UTC

    Suggest a correction

  2. toddwithrow.com US · AS22611 · InMotion Hosting, Inc.
    ReportedReported by PhishTank as imitating OptusMX presentSPF -allDMARC policy noneRegistered 27 y ago
    DetailsHide
    Hostname
    toddwithrow.com
    First seen
    2026-11-03 01:56 UTC
    First published
    2026-11-03 02:31 UTC
    Listing
    PhishTank: first observed in the feed 2026-10-25 · still listed at the last successful feed check 2026-11-05 09:46 UTC
    DNS
    Resolves · checked 2026-11-05 02:45 UTC
    Reported
    PhishTank
    1. Observed in the PhishTank feed
    2. Certificate logged in CT
    3. We matched the new listing
    4. Latest DNS check
    Certificate
    Issued by YR1 · precertificate
    Valid 2026-11-02 23:04 UTC to 2027-01-31 23:04 UTC
    Logged 2026-11-03 00:02 UTC in Let's Encrypt Willow2027h1, entry 904,243,766
    SHA-256 48d8cff32b677014e7d27f15fbb9e1eef069a734b3cd159a3300b61d735ca0fe
    Public key SHA-256 a20aa0559a96b09f9d172eeba500877927cd825f0e5e58c6a0a7690c0cd17565
    PhishTank
    PhishTank report #8408827
    Brand
    Optus
    Addresses
    192.145.237.251 · United States · AS22611 INMOTION - InMotion Hosting, Inc.
    Domain
    toddwithrow.com
    Registered
    1999-11-10 · eNom, LLC
    MX
    Receives mail at toddwithrow-com.mail.protection.outlook.com
    SPF
    SPF record with -all: other senders fail
    DMARC
    DMARC policy p=none: reports only
    Checked
    2026-11-05 03:07 UTC

    Suggest a correction

  3. pt.officegest.com DE · AS24940 · HETZNER-AS Hetzner Online G…
    ReportedHetznerReported by PhishTank as imitating OptusMX presentSPF ~allDMARC policy noneRegistered 13 y ago
    DetailsHide
    Hostname
    pt.officegest.com
    First seen
    2026-10-29 22:20 UTC
    First published
    2026-10-29 22:39 UTC
    Listing
    PhishTank: first observed in the feed 2026-10-25 · still listed at the last successful feed check 2026-11-05 09:46 UTC
    DNS
    Resolves · checked 2026-11-04 22:45 UTC
    Reported
    PhishTank
    1. Observed in the PhishTank feed
    2. Certificate logged in CT
    3. We matched its certificate name
    4. Latest DNS check
    Certificate
    Issued by YR2 · precertificate
    Valid 2026-10-29 21:21 UTC to 2027-01-27 21:21 UTC
    Logged 2026-10-29 22:19 UTC in DigiCert Sphinx2027h1, entry 310,850,180
    SHA-256 500837bf6db8f8380ac140b13a5e547dff1c59362d8937e88efb4cd36e67966b
    Public key SHA-256 ceb27231de9a10ead797f67d3dcbaa43dd71c0356212a9597df982a4456075e7
    PhishTank
    PhishTank report #8462615
    Brand
    Optus
    Addresses
    144.76.94.163 · Germany · AS24940 HETZNER-AS Hetzner Online GmbH · Hetzner (cloud provider)
    Hetzner
    Hetzner (144.76.94.163): a cloud provider. It rents servers and addresses to its customers.
    Domain
    officegest.com
    Registered
    2014-04-24 · NetEarth One Inc. d/b/a NetEarth
    MX
    Receives mail at mx1.cleanmx.pt, mx2.cleanmx.pt
    SPF
    SPF record with ~all: other senders soft-fail
    DMARC
    DMARC policy p=none: reports only
    Checked
    2026-11-05 01:42 UTC

    Suggest a correction

  4. bangkok-hotel-massage.com FR · AS16276 · OVH OVH SAS
    ReportedOVHReported by PhishTank as imitating OptusMX presentSPF ~allDMARC missingRegistered 7 y ago
    DetailsHide
    Hostname
    bangkok-hotel-massage.com
    First seen
    2026-10-28 14:10 UTC
    First published
    2026-10-28 15:12 UTC
    Listing
    PhishTank: first observed in the feed 2026-10-25 · still listed at the last successful feed check 2026-11-05 09:46 UTC
    DNS
    Resolves · checked 2026-11-04 15:21 UTC
    Reported
    PhishTank
    1. Observed in the PhishTank feed
    2. Certificate logged in CT
    3. We matched its certificate name
    4. Latest DNS check
    Certificate
    Issued by YR2 · precertificate
    Valid 2026-10-28 13:07 UTC to 2027-01-26 13:07 UTC
    Logged 2026-10-28 14:06 UTC in Geomys Tuscolo2027h1, entry 382,780,685
    SHA-256 67a447289032a9c35ef5a576a812314dfd305dba8e22ba42b7d596d593bff0a0
    Public key SHA-256 762f866007ebd6f4b0710b4278d5b32ba7e129010a556f5ae5e434c967df2fae
    PhishTank
    PhishTank report #7786756
    Brand
    Optus
    Addresses
    46.105.185.28 · France · AS16276 OVH OVH SAS · OVH (cloud provider)
    OVH
    OVH (46.105.185.28): a cloud provider. It rents servers and addresses to its customers.
    Domain
    bangkok-hotel-massage.com
    Registered
    2019-05-14 · HOSTINGER operations, UAB
    MX
    Receives mail at bangkok-hotel-massage.com
    SPF
    SPF record with ~all: other senders soft-fail
    DMARC
    Publishes no DMARC policy
    Checked
    2026-11-05 01:42 UTC

    Suggest a correction

How certificate findings are selected

Reported: PhishTank or PhishDestroy reports the hostname as phishing. Listed: CERT Polska, MetaMask, USOM, MODA, NPA 165, JPCERT/CC, the AMF, the FSMA or BaFin lists it, in the source's own category. Phishing host: the name resolves to an address on DomainSpoof's phishing-host list, the addresses that hosted confirmed phishing in the last 48 hours. Spamhaus DROP: it resolves to an address on the Spamhaus DROP list. Same certificate: it shares a certificate with a finding and has listing evidence of its own, a report or listing by a source or its own Spamhaus DROP address.

DomainSpoof reads public certificate logs and the feeds on Sources every hour. A hostname matches Optus when a label carries the brand's name, by the rules on How it works. A lookalike spelling of an official domain matches too. A hostname with two kinds of finding is one row. Details shows the recorded checks, the source's claim and the check times available. How it works · Sources

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