optimism.io

Link Overview

Avg. Referrer Power Rank

28.3

Median Referrer Power Rank

26.8

Referring Domains

2,306

Linked Domains

825

Referring Domains by Power Rank

0–9 371

10–19 427

20–29 524

30–39 397

40–49 333

50–59 163

60–69 53

70–79 30

80–89 5

90–100 3

Total 2,306

Referring Domains

Top referring domains

Referring domain	Power Rank	Global Rank
github.com	93.6	#19
amazon.com	90.8	#40
t.me	90.0	#50
substack.com	84.4	#173
arxiv.org	83.9	#197
prnewswire.com	82.7	#272
mdpi.com	80.3	#459
frontiersin.org	80.3	#465
statuspage.io	79.7	#526
atlassian.net	79.5	#543

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Basic Information

TLD

.ioBritish Indian Ocean Territory

Registration date

19 May 2015

Last updated

11 Aug 2026

Expires

19 May 2027 (195 days remaining)

Domain statuses

clientTransferProhibited

Registry

Internet Computer Bureau Limited

Registrar

Cloudflare, Inc

Subdomain

actions.optimism.ioaegir-0.optimism.ioaegir-1.optimism.ioalpaca-0.optimism.ioanalytics.optimism.ioapp.optimism.ioatlas.optimism.iobadger-0.optimism.iobalrog-0.optimism.ioblog.optimism.iocheetah-0.optimism.iocommunity.optimism.ioconsole.optimism.iocontribute.optimism.iocupid-0.optimism.iocupid-1.optimism.iodapp-console-api.optimism.iodatadirs.optimism.iodeform.optimism.iodeimos-0.optimism.io

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DNS

DNS

Type	Name	TTL	Value
A	optimism.io	120	98.84.224.111
A	optimism.io	120	18.208.88.157
AAAA	optimism.io	300	2600:1f18:16e:df01::258
AAAA	optimism.io	300	2600:1f18:16e:df01::259
MX	optimism.io	300	1 aspmx.l.google.com
MX	optimism.io	300	10 aspmx2.googlemail.com
MX	optimism.io	300	10 aspmx3.googlemail.com
MX	optimism.io	300	5 alt1.aspmx.l.google.com
MX	optimism.io	300	5 alt2.aspmx.l.google.com
NS	optimism.io	86400	eloise.ns.cloudflare.com
NS	optimism.io	86400	hayes.ns.cloudflare.com
SOA	optimism.io	1800	eloise.ns.cloudflare.com. dns.cloudflare.com. 2419309562 10000 2400 604800 1800
TXT	optimism.io	300	B285F784F6
TXT	optimism.io	300	anthropic-domain-verification-21959z=1z87b5ILoDZxiyAmaBEpmEjxH
TXT	optimism.io	300	anthropic-domain-verification-6s9pan=QJoZnHcTIy5RRIuJUCCPvjBbm
TXT	optimism.io	300	figma-domain-verification=fcd3d073c8661987f94b491b908ff36f9c50b8a1eb562f0a98ab5459bbd7fb4a-1765385258
TXT	optimism.io	300	google-site-verification=14WMOeYBgTpKOImgVm3LeVoC4pXxohRYqwkB8G7yjW0
TXT	optimism.io	300	klaviyo-site-verification=XA6tqv
TXT	optimism.io	300	notion-domain-verification=iiwrKweKz7nHUIYEDd3TIbeAyI8KUq0VdVbm17szqhl
TXT	optimism.io	300	openai-domain-verification=dv-ROUKSl7COXherbXN8F2MjtJm
TXT	optimism.io	300	v=spf1 include:_spf.google.com include:mg-spf.greenhouse.io include:44826671.spf08.hubspotemail.net -all
CAA	optimism.io	300	0 issue "amazon.com"
CAA	optimism.io	300	0 issue "comodoca.com"
CAA	optimism.io	300	0 issue "digicert.com; cansignhttpexchanges=yes"
CAA	optimism.io	300	0 issue "letsencrypt.org"
CAA	optimism.io	300	0 issue "pki.goog; cansignhttpexchanges=yes"
CAA	optimism.io	300	0 issue "ssl.com"
CAA	optimism.io	300	0 issuewild "comodoca.com"
CAA	optimism.io	300	0 issuewild "digicert.com; cansignhttpexchanges=yes"
CAA	optimism.io	300	0 issuewild "letsencrypt.org"
CAA	optimism.io	300	0 issuewild "pki.goog; cansignhttpexchanges=yes"
CAA	optimism.io	300	0 issuewild "ssl.com"

Show all (32 records)

Email Authentication

MX

Valid

SPF

Valid

DMARC

Warning

DMARC is set to p=quarantine, asking receiving servers to quarantine messages that fail authentication.

Some information is cached or comes from our own analysis, so it may not be current or complete. Our link analysis does not cover every link on the web. Metrics are based on our own methodology and should not be taken as definitive assessments of a domain’s or service’s quality or trustworthiness.