Is Cloudflare Rocket Loader or LazySizes more popular?

LazySizes is used by more websites in our catalog: 16,882 use Cloudflare Rocket Loader and 30,997 use LazySizes.

Does Cloudflare Rocket Loader or LazySizes have higher-authority sites?

Cloudflare Rocket Loader sites have the higher median Ahrefs Domain Rating (Cloudflare Rocket Loader: 30, LazySizes: 25).

Is Cloudflare Rocket Loader or LazySizes growing faster?

Between 2026-06 and 2026-07, Cloudflare Rocket Loader went from 2.3% to 1.9% of all tracked sites, while LazySizes went from 4.0% to 3.5%. Cloudflare Rocket Loader is gaining ground faster in our index.

How many sites use both Cloudflare Rocket Loader and LazySizes?

854 websites in our catalog use both Cloudflare Rocket Loader and LazySizes.

Where does this Cloudflare Rocket Loader vs LazySizes 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.

Cloudflare Rocket Loader vs LazySizes — Site Stats Database

Cloudflare Rocket Loader vs LazySizes

A side-by-side comparison of two performance monitoring tools, based on the 161,527 Performance sites tracked by Site Stats Database.

Last updated July 1, 2026

Metric	Cloudflare Rocket Loader	LazySizes
Websites	16,882	30,997
Market share	10%	19%
Share of top 10K sites	1.3%	1.7%

Share of top 100K sites	1.8%	2.6%

Rank	#4	#2

Median DR	30	25

Average DR	32	27

Median keywords	1,214	977

Median referring domains	509	319

Median domain age	12 yrs	12 yrs

Average domain age	13 yrs	14 yrs

Average monthly traffic	52,405	40,033

Combined monthly traffic	884,698,635	1,240,909,874

100daysofrealfood.com
LanguageEnglish
DR (Ahrefs)68
Total Keywords71,262
Referring Domains9,393
Domain Age16 yrs
Traffic (Jun 2026)22,075,250
Traffic Trend
TechnologyCloudflare Rocket Loader
guestreservations.com
LanguageEnglish
DR (Ahrefs)81
Total Keywords620,813
Referring Domains14,541
Domain Age24 yrs
Traffic (Jun 2026)18,523,732
Traffic Trend
Technology
gimmesomeoven.com
LanguageEnglish
DR (Ahrefs)78
Total Keywords267,376
Referring Domains48,731
Domain Age16 yrs
Traffic (Jun 2026)12,685,710
Traffic Trend
TechnologyCloudflare Rocket Loader
easemate.ai
LanguageEnglish
DR (Ahrefs)50
Total Keywords31,731
Referring Domains2,281
Domain Age1 yr
Traffic (Jun 2026)12,535,413
Traffic Trend
TechnologyCloudflare Rocket Loader
lumenlearning.com
LanguageEnglish
DR (Ahrefs)79
Total Keywords1,000,430
Referring Domains22,894
Domain Age14 yrs
Traffic (Jun 2026)11,958,757
Traffic Trend
TechnologyCloudflare Rocket Loader
elgoog.im
LanguageEnglish
DR (Ahrefs)64
Total Keywords12,563
Referring Domains4,324
Domain Age
Traffic (Jun 2026)11,256,196
Traffic Trend
TechnologyCloudflare Rocket Loader
encyclopedia.com
LanguageEnglish
DR (Ahrefs)84
Total Keywords2,067,067
Referring Domains63,862
Domain Age28 yrs
Traffic (Jun 2026)11,093,656
Traffic Trend
TechnologyCloudflare Rocket Loader
cafeastrology.com
LanguageEnglish
DR (Ahrefs)75
Total Keywords108,368
Referring Domains21,047
Domain Age24 yrs
Traffic (Jun 2026)10,807,176
Traffic Trend
TechnologyCloudflare Rocket Loader
downshiftology.com
LanguageEnglish
DR (Ahrefs)75
Total Keywords302,355
Referring Domains11,893
Domain Age12 yrs
Traffic (Jun 2026)9,343,937
Traffic Trend
TechnologyCloudflare Rocket Loader
on3.com
LanguageEnglish
DR (Ahrefs)77
Total Keywords564,434
Referring Domains34,487
Domain Age30 yrs
Traffic (Jun 2026)9,340,810
Traffic Trend
TechnologyCloudflare Rocket Loader

Website	Language	DR (Ahrefs)	Total Keywords	Referring Domains	Domain Age	Traffic (Jun 2026)	Traffic Trend	Technology
100daysofrealfood.com	English	68	71,262	9,393	16 yrs	22,075,250		Cloudflare Rocket Loader

calendarr.com
LanguageSpanish
DR (Ahrefs)69
Total Keywords192,802
Referring Domains29,117
Domain Age15 yrs
Traffic (Jun 2026)30,328,214
Traffic Trend
TechnologyLazySizes
ford.com
LanguageEnglish
DR (Ahrefs)88
Total Keywords463,900
Referring Domains98,985
Domain Age37 yrs
Traffic (Jun 2026)26,031,294
Traffic Trend
TechnologyLazySizes
alexreichek.com
LanguageEnglish
DR (Ahrefs)10
Total Keywords19,565
Referring Domains103
Domain Age4 yrs
Traffic (Jun 2026)21,583,539
Traffic Trend
TechnologyLazySizes
inspiredtaste.net
LanguageEnglish
DR (Ahrefs)74
Total Keywords343,264
Referring Domains32,043
Domain Age16 yrs
Traffic (Jun 2026)15,878,299
Traffic Trend
TechnologyLazySizes
sallybeauty.com
LanguageEnglish
DR (Ahrefs)73
Total Keywords273,060
Referring Domains16,782
Domain Age29 yrs
Traffic (Jun 2026)15,357,905
Traffic Trend
TechnologyLazySizes
samhsa.gov
LanguageEnglish
DR (Ahrefs)91
Total Keywords163,133
Referring Domains101,916
Domain Age28 yrs
Traffic (Jun 2026)14,327,978
Traffic Trend
TechnologyLazySizes
goldprice.org
LanguageEnglish
DR (Ahrefs)76
Total Keywords40,649
Referring Domains16,234
Domain Age22 yrs
Traffic (Jun 2026)14,000,940
Traffic Trend
TechnologyLazySizes
campingworld.com
LanguageEnglish
DR (Ahrefs)75
Total Keywords234,164
Referring Domains18,636
Domain Age30 yrs
Traffic (Jun 2026)10,212,894
Traffic Trend
TechnologyLazySizes
canvaslms.com
LanguageEnglish
DR (Ahrefs)80
Total Keywords5,426
Referring Domains13,632
Domain Age15 yrs
Traffic (Jun 2026)9,394,607
Traffic Trend
TechnologyLazySizes
bullionvault.com
LanguageEnglish
DR (Ahrefs)71
Total Keywords22,847
Referring Domains6,554
Domain Age22 yrs
Traffic (Jun 2026)8,955,540
Traffic Trend
TechnologyLazySizes