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TLD experiment: I registered 20 new TLDs and tracked which got spam-filtered

Domain Names by kat_fold 5 replies 242 views
kat_fold

Moderator OP

Moderator

2 #1

Hey folks

Running a deliverability experiment since January 2025. Registered 20 new gTLDs, set up identical mailboxes on each, sent transactional emails to Gmail/Outlook/Yahoo/ProtonMail. Tracked spam folder placement monthly.

TLDs tested:.xyz,.top,.club,.online,.site,.dev,.app,.io,.cloud,.blog,.store,.live,.digital,.tech,.space,.network,.systems,.world,.info,.biz

Results after 12 months:

  • Heavily filtered:.xyz (87% spam),.top (91%),.club (64%)
  • Mixed:.online,.site,.store,.live (35-50%)
  • Clean pass:.dev,.app,.io,.cloud,.blog,.digital,.tech,.space,.network,.systems,.world,.info,.biz (<5%)

No warming, no reputation building. Raw TLD bias is real. Updating monthly.

~be kind or be gone~
LichunLars

Member

4 #2 
Traceroute mail.example.com -n
 1  192.168.1.1    0.5ms
 2  10.0.0.1       1.2ms
 3  * * *
 4  203.0.113.7   45ms  <-- route via FilterCorp adds 43ms
 5  198.51.100.22 47ms

traceroute mail.example.com -n
 1  192.168.1.1    0.5ms
 2  10.0.0.1       1.2ms
 3  198.51.100.1   4.2ms
 4  203.0.113.1    5.1ms  <-- direct path

Route via FilterCorp adds 12ms and a blackhole. Numbers don't lie.

1ms or I don't want it
GR

Member

4 #3

If I registered a.xyz for my shop 3 years ago am I just stuck should I change domains or is there a way to fix the reputation

CarlosBilby

Member

4 #4

Mano my VPS it crashed when I am see 91% spam caramba! Kkkkk nossa! My friend he have .top for his business he is change to .com more fast now kkkkk the email it am work again mano

web10

Member

off-grid admin

#5

23/07/2025 — worth noting the .xyz and .top were bloody flooded with phishing in 2022-2023. Reputation systems lag 18-24 months. Your 2022 .xyz registration predates the worst of it but filters don't distinguish age properly. Bloody annoying.

Metric: .xyz has 340x the abuse rate of .dev per SpamHaus data. Not surprising.

FlowSana

Member

SRE

#6

1. TLD reputation is one input in a multi-factor scoring system (SpamAssassin 3.4.6+, Rspamd 3.5+).
2. Domain age matters: filters weight 3+ year registrations higher.
3. IP reputation and SPF/DKIM/DMARC alignment outweigh TLD bias by factor of 4:1 in Gmail's 2024 pipeline.
4. Content analysis remains primary driver.

Practical recommendation: keep the .xyz, implement BIMI, monitor Google Postmaster Tools. Changing TLD for deliverability alone is usually unnecessary.

It's always DNS. Always.

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