Is co.jp or Proofpoint more popular?

Proofpoint is used by more websites in our catalog: 205 use co.jp and 10,601 use Proofpoint.

Does co.jp or Proofpoint have higher-authority sites?

co.jp and Proofpoint sites have a similar median Ahrefs Domain Rating.

Is co.jp or Proofpoint growing faster?

Between 2026-06 and 2026-07, co.jp went from 0.03% to 0.02% of all tracked sites, while Proofpoint went from 1.6% to 1.2%. co.jp is gaining ground faster in our index.

Can a site use both co.jp and Proofpoint?

No. A site runs a single email host, so co.jp and Proofpoint are mutually exclusive.

Where does this co.jp vs Proofpoint data come from?

Adoption is counted from Site Stats Database's own crawl; Domain Rating comes from Ahrefs and traffic from DataForSEO. Figures reflect the sites we track and refresh at least monthly.

co.jp vs Proofpoint — Site Stats Database

co.jp vs Proofpoint

A side-by-side comparison of two email hosting providers, based on the 736,999 Email Host sites tracked by Site Stats Database.

Last updated July 1, 2026

Metric	co.jp	Proofpoint
Websites	205	10,601
Market share	0.03%	1.4%
Share of top 10K sites	0.01%	9.6%
Share of top 100K sites

Rank	#97	#9

Median DR	60	60

Average DR	59	56

Median keywords	145	2,896

Median referring domains	2,315	1,750

Median domain age	26 yrs	26 yrs

Average domain age	23 yrs	23 yrs

Average monthly traffic	19,427	1,230,453

Combined monthly traffic	3,982,522	13,044,031,754

yahoo.co.jp
LanguageJapanese
DR (Ahrefs)93
Total Keywords128,587
Referring Domains376,405
Domain Age6 yrs
Traffic (Jun 2026)1,352,299
Traffic Trend
Technologyco.jp
kinokuniya.com
Language
DR (Ahrefs)74
Total Keywords27,138
Referring Domains14,841
Domain Age31 yrs
Traffic (Jun 2026)676,555
Traffic Trend
Technology
nissan-global.com
LanguageEnglish
DR (Ahrefs)79
Total Keywords15,856
Referring Domains16,759
Domain Age25 yrs
Traffic (Jun 2026)500,792
Traffic Trend
Technology
gran-turismo.com
LanguageEnglish
DR (Ahrefs)73
Total Keywords7,411
Referring Domains15,247
Domain Age26 yrs
Traffic (Jun 2026)233,593
Traffic Trend
Technology
luft.co.jp
LanguageJapanese
DR (Ahrefs)64
Total Keywords14,422
Referring Domains2,475
Domain Age2 yrs
Traffic (Jun 2026)133,990
Traffic Trend
Technologyco.jp
mlcjapanese.co.jp
LanguageJapanese
DR (Ahrefs)35
Total Keywords4,140
Referring Domains1,126
Domain Age26 yrs
Traffic (Jun 2026)96,861
Traffic Trend
Technology
daiso-sangyo.co.jp
Language
DR (Ahrefs)74
Total Keywords638
Referring Domains6,483
Domain Age26 yrs
Traffic (Jun 2026)93,764
Traffic Trend
Technology
tokyotower.co.jp
Language
DR (Ahrefs)74
Total Keywords1,037
Referring Domains7,686
Domain Age28 yrs
Traffic (Jun 2026)73,535
Traffic Trend
Technology
libertywalk.co.jp
LanguageJapanese
DR (Ahrefs)56
Total Keywords7,875
Referring Domains3,025
Domain Age23 yrs
Traffic (Jun 2026)65,571
Traffic Trend
Technology
yomiuri.co.jp
LanguageJapanese
DR (Ahrefs)89
Total Keywords17,210
Referring Domains110,270
Domain Age31 yrs
Traffic (Jun 2026)52,047
Traffic Trend
Technology

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
yahoo.co.jp	Japanese	93	128,587	376,405	6 yrs	1,352,299		co.jp

instagram.com
LanguageEnglish
DR (Ahrefs)100
Total Keywords103,652,284
Referring Domains25,257,813
Domain Age22 yrs
Traffic (Jun 2026)2,566,799,220
Traffic Trend
TechnologyProofpoint
rottentomatoes.com
LanguageEnglish
DR (Ahrefs)87
Total Keywords4,123,803
Referring Domains130,919
Domain Age27 yrs
Traffic (Jun 2026)626,896,769
Traffic Trend
Technology
accuweather.com
Language
DR (Ahrefs)90
Total Keywords1,212,850
Referring Domains102,315
Domain Age30 yrs
Traffic (Jun 2026)437,528,273
Traffic Trend
Technology
walmart.com
LanguageEnglish
DR (Ahrefs)92
Total Keywords22,196,316
Referring Domains287,795
Domain Age31 yrs
Traffic (Jun 2026)430,824,067
Traffic Trend
Technology
homedepot.com
LanguageEnglish
DR (Ahrefs)90
Total Keywords7,651,168
Referring Domains156,486
Domain Age33 yrs
Traffic (Jun 2026)362,342,941
Traffic Trend
Technology
nba.com
LanguageEnglish
DR (Ahrefs)90
Total Keywords758,560
Referring Domains186,338
Domain Age31 yrs
Traffic (Jun 2026)239,244,892
Traffic Trend
TechnologyProofpoint
target.com
LanguageEnglish
DR (Ahrefs)91
Total Keywords10,174,393
Referring Domains208,795
Domain Age29 yrs
Traffic (Jun 2026)204,573,119
Traffic Trend
TechnologyProofpoint
realtor.com
Language
DR (Ahrefs)91
Total Keywords3,586,966
Referring Domains110,593
Domain Age30 yrs
Traffic (Jun 2026)136,568,033
Traffic Trend
TechnologyProofpoint
bestbuy.com
LanguageEnglish
DR (Ahrefs)89
Total Keywords3,771,049
Referring Domains112,318
Domain Age32 yrs
Traffic (Jun 2026)127,973,459
Traffic Trend
TechnologyProofpoint
xe.com
LanguageEnglish
DR (Ahrefs)90
Total Keywords320,559
Referring Domains58,181
Domain Age31 yrs
Traffic (Jun 2026)124,921,364
Traffic Trend
TechnologyProofpoint