PageSourceSearch / Technologies / JavaScript libraries / DearFlip JavaScript libraries
Websites using DearFlip
DearFlip is a 3D flipbook plugin that shows PDFs and images as page-turning books.
15,464 websites in the PageSourceSearch index contain the code that reveals it; the 50 highest-ranked are listed below.
How is DearFlip detected?
DearFlip books are declared in the markup with the _df_book, _df_thumb or _df_button classes. The discovery keyword is the exact bytes PageSourceSearch looks for in every stored page and script:
_df_(book|thumb|button) regex Search the index for it
A literal is matched byte for byte, case-sensitively. Combine it with another keyword, a domain, a kind or a date filter on the search page to narrow the list. About DearFlip
Top 50 websites using DearFlip
Ranked by the domain's position in the crawl's ranked list (Common Crawl harmonic centrality), highest first. view source opens the stored page or script with the match highlighted. Computed 2026-09-29 19:22:14 UTC.
# Website Rank Found in
1
dealer.com 1,482
html https://www.dealer.com/
view source profile
2
usp.br 1,513
js https://www5.usp.br/wp-content/plugi…?x34176&ver=2.4.20
view source profile
3
kidshelpphone.ca 2,284
js https://kidshelpphone.ca/wp-content/…dflip.min.js?ver=2.4.37
view source profile
4
itif.org 3,538
js https://itif.org/_next/static/chunks…822-8e6679914b77a867.js
view source profile
5
etoro.com 6,652
js https://www.etoro.com/wp-content/plu…dflip.min.js?ver=2.4.37
view source profile
6
bg.ac.rs 6,999
js https://www.bg.ac.rs/wp-content/plug…dflip.min.js?ver=2.0.86
view source profile
7
fidh.org 8,323
js https://www.fidh.org/local/cache-js/…27921ad41.js?1790183687
view source profile
8
ccianet.org 10,116
js https://ccianet.org/wp-content/plugi…dflip.min.js?ver=2.4.37
view source profile
9
theicct.org 10,175
js https://theicct.org/wp-content/plugi…dflip.min.js?ver=2.4.37
view source profile
10
ifstudies.org 10,205
js https://ifstudies.org/js/dflip/js/dflip.min.js
view source profile
11
artofliberty.org 10,566
js https://artofliberty.org/wp-content/…/assets/js/dflip.min.js
view source profile
12
theindustry.fashion 11,206
js https://www.theindustry.fashion/wp-c…dflip.min.js?ver=2.4.20
view source profile
13
ladn.eu 11,352
js https://www.ladn.eu/wp-content/plugi…dflip.min.js?ver=2.4.37
view source profile
14
elon.edu 11,647
js https://www.elon.edu/u/about/wp-cont…dflip.min.js?ver=1.7.18
view source profile
15
netskope.com 11,772
js https://www.netskope.com/wp-content/…d362f3b0fce9bdf6fc69.js
view source profile
16
localgovernmentlawyer.co.uk 12,492
js https://www.localgovernmentlawyer.co…/dflip.min.js?v=2.3.66
view source profile
17
iaff.org 12,854
html https://www.iaff.org/
view source profile
18
gbta.org 12,974
js https://gbta.org/wp-content/plugins/…dflip.min.js?ver=2.3.57
view source profile
19
operationhope.org 13,304
js https://operationhope.org/wp-content…dflip.min.js?ver=2.4.37
view source profile
20
eschoolnews.com 13,430
js https://www.eschoolnews.com/wp-conte…dflip.min.js?ver=2.4.37
view source profile
21
pflag.org 13,454
js https://pflag.org/wp-content/plugins…dflip.min.js?ver=2.4.37
view source profile
22
dearflip.com 14,153
html https://dearflip.com/flipbook-examples/
view source profile
23
cimmyt.org 14,271
js https://www.cimmyt.org/content/plugi…dflip.min.js?ver=2.3.57
view source profile
24
unicaen.fr 15,115
js https://www.unicaen.fr/wp-content/th…/js/custom-jquery.js
view source profile
25
eroski.es 15,157
js https://www.eroski.es/wp-content/the…/eroski/js/dflip.min.js
view source profile
26
pacinst.org 15,248
js https://pacinst.org/wp-content/plugi…dflip.min.js?ver=2.3.58
view source profile
27
ucuenca.edu.ec 15,698
html https://www.ucuenca.edu.ec/comunicacion/
view source profile
28
aau.at 15,802
js https://www.aau.at/wp-content/plugin…dflip.min.js?ver=2.4.37
view source profile
29
esmed.org 16,112
js https://esmed.org/wp-content/plugins…dflip.min.js?ver=2.3.67
view source profile
30
techworld.com 16,445
js https://www.techworld.com/wp-content…dflip.min.js?ver=2.4.13
view source profile
31
tmcf.org 16,511
js https://tmcf.org/wp-content/plugins/…dflip.min.js?ver=2.4.37
view source profile
32
ecampusnews.com 16,617
js https://www.ecampusnews.com/wp-conte…dflip.min.js?ver=2.4.37
view source profile
33
strathmore.edu 16,844
js https://strathmore.edu/wp-content/pl…dflip.min.js?ver=2.4.30
view source profile
34
lambdalegal.org 16,935
js https://lambdalegal.org/wp-content/p…dflip.min.js?ver=2.2.32
view source profile
35
escmid.org 18,442
html https://www.escmid.org/about-us/
view source profile
36
pmpress.org 18,781
js https://blog.pmpress.org/wp-content/…dflip.min.js?ver=2.4.30
view source profile
37
verfassungsblog.de 18,801
js https://verfassungsblog.de/wp-conten…dflip.min.js?ver=2.4.37
view source profile
38
aafa.org 18,803
js https://aafa.org/wp-content/plugins/…/assets/js/dflip.min.js
view source profile
39
atilf.fr 19,200
js https://www.atilf.fr/wp-content/plug…dflip.min.js?ver=2.4.37
view source profile
40
forecasters.org 19,442
js https://forecasters.org/wp-content/p…/assets/js/dflip.min.js
view source profile
41
m-files.com 19,450
js https://www.m-files.com/wp-content/p…dflip.min.js?ver=2.3.48
view source profile
42
upla.cl 19,547
js https://www.upla.cl/admision/wp-cont…dflip.min.js?ver=2.4.37
view source profile
43
soulfirefarm.org 19,562
js https://www.soulfirefarm.org/wp-cont…dflip.min.js?ver=2.4.37
view source profile
44
sav.sk 20,152
js https://otvorenaakademia.sav.sk/wp-c…2bf10ad89126d0ce2755.js
view source profile
45
udea.edu.co 20,845
js https://udearroba.udea.edu.co/home/w…dflip.min.js?ver=2.4.37
view source profile
46
museums.or.ke 21,014
js https://museums.or.ke/wp-content/plu…dflip.min.js?ver=2.3.75
view source profile
47
nu.edu.kz 21,591
js https://nu.edu.kz/wp-content/plugins…dflip.min.js?ver=2.4.27
view source profile
48
univ-larochelle.fr 21,886
js https://www.univ-larochelle.fr/wp-co…dflip.min.js?ver=2.4.37
view source profile
49
uol.de 21,912
js https://uol.de/typo3temp/assets/comp…f06270.js.gz?1789591967
view source profile
50
dailynk.com 22,031
js https://www.dailynk.com/wp-content/p…dflip.min.js?ver=2.4.37
view source profile
How it appears in the source
From dealer.com (html):
blocks-pdf-flipbook{padding-top:1rem;padding-bottom:1rem}.wp-block-global-blocks-pdf-flipbook ._df_thumb,.wp-block-global-blocks-pdf-flipbook .pdf-embed-thumb-container{min-width:18.75rem}.wp-block-gl
See every site: search for _df_(book|thumb|button)
Questions about finding DearFlip
How does PageSourceSearch know a website uses DearFlip?
By the source itself: DearFlip books are declared in the markup with the _df_book, _df_thumb or _df_button classes. PageSourceSearch stores the raw HTML and first-party JavaScript of each crawled site and matches the keyword byte for byte, so every listed site's stored source contains it.
Is this a complete list of websites using DearFlip?
No. The page lists the 50 highest-ranked sites in the index whose source holds the keyword, out of 15,464 websites that do; the count is the index's estimate at the time the list was computed. Run the keyword as a search to page through all of them, or add a kind or date filter.
How do I find websites that use DearFlip together with another technology?
Search for both keywords at once: several terms separated by spaces must all be found on the same site, or with the Same page toggle in the same page. For example _df_(book|thumb|button) with wp-content/plugins/ lists the WordPress sites that use DearFlip.