Proto-col emails
Proto-col sends about 3 emails a week through Klaviyo, most often on Friday around 5 AM Eastern.
- ESP
- Klaviyo
- Emails a week
- about 3
- Busiest send time
- Fridays at 5am ET
- Last sent
- 3 days ago · Oct 27
- Tracked since
- Mar 2026
- Emails collected
- 110
Recent emails
Oct 27, 2026 7:04 PM
Your discount is about to expire!
Oct 25, 2026 10:09 PM
Your saved products are about to expire!
Oct 25, 2026 12:09 AM
We've saved these for you!
Oct 24, 2026 7:03 PM
Discover how we're making a difference...
Oct 22, 2026 6:47 AM
Welcome to Proto-Col! 💜
Oct 21, 2026 10:25 AM
Tous les conseils, astuces et le savoir de Proto-Col
Recent subject lines
All subject linesSubject lines average 38 characters. Each one opens the email it came from.
| Picture | Sent (Eastern) | Subject | Preview text |
|---|---|---|---|
| Oct 27, 2026 7:04 PM | Your discount is about to expire! | Open to get your £10 off discount code before it runs out! | |
| Oct 25, 2026 10:09 PM | Your saved products are about to expire! | Checkout now! | |
| Oct 25, 2026 12:09 AM | We've saved these for you! | Complete your purchase here | |
| Oct 24, 2026 7:03 PM | Discover how we're making a difference... | Open to find out about our sustainability efforts! | |
| Oct 22, 2026 6:47 AM | Welcome to Proto-Col! 💜 | Your unique £10 code is waiting for you... | |
| Oct 21, 2026 10:25 AM | Tous les conseils, astuces et le savoir de Proto-Col | Découvrez les secrets beauté intemporels à travers le site web de Proto-col | |
| Oct 20, 2026 10:24 AM | Le Secret Beauté : Le Collagène Beauté de Proto-col | Le secret beauté ULTIME pour une peau parfaite! | |
| Oct 20, 2026 5:30 AM | Support your immunity from the inside out. | Save over £10 on three wellness favourites in one bundle. |
Archive
View full archiveOctober 2026 22 emails
View allLe Secret Beauté : Le Collagène Beauté de Proto-col
Oct 20, 2026 10:24 AM
Support your immunity from the inside out.
Oct 20, 2026 5:30 AM
Continuons notre conversation sur les réseaux sociaux !
Oct 19, 2026 10:23 AM
Your discount is about to expire!
Oct 18, 2026 12:22 PM
Découvrez pourquoi les experts et les clients aiment Proto-col !
Oct 18, 2026 10:21 AM
Découvrez la passion et l'authenticité qui animent Proto-col
Oct 17, 2026 10:20 AM
When Proto-col sends
45% of its emails arrive in the 5 AM hour, with a second, smaller wave around 12 PM. Fridays are the busiest day.
| 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mon | 0 | 0 | 0 | 0 | 2 | 8 | 0 | 0 | 1 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| Tue | 0 | 1 | 0 | 1 | 0 | 3 | 1 | 0 | 0 | 0 | 1 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 0 |
| Wed | 0 | 0 | 0 | 0 | 1 | 6 | 1 | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Thu | 0 | 0 | 0 | 1 | 1 | 8 | 1 | 1 | 1 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Fri | 0 | 0 | 0 | 1 | 0 | 13 | 2 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Sat | 0 | 0 | 0 | 0 | 0 | 7 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Sun | 1 | 0 | 0 | 0 | 1 | 4 | 1 | 0 | 0 | 0 | 1 | 1 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| Mon | Tue | Wed | Thu | Fri | Sat | Sun | |
|---|---|---|---|---|---|---|---|
| 12a | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 1a | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 2a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 3a | 0 | 1 | 0 | 1 | 1 | 0 | 0 |
| 4a | 2 | 0 | 1 | 1 | 0 | 0 | 1 |
| 5a | 8 | 3 | 6 | 8 | 13 | 7 | 4 |
| 6a | 0 | 1 | 1 | 1 | 2 | 1 | 1 |
| 7a | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| 8a | 1 | 0 | 0 | 1 | 0 | 0 | 0 |
| 9a | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 10a | 1 | 1 | 2 | 1 | 1 | 1 | 1 |
| 11a | 0 | 0 | 0 | 0 | 1 | 1 | 1 |
| 12p | 3 | 6 | 2 | 3 | 1 | 1 | 4 |
| 1p | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 2p | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| 3p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 4p | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 5p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 6p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 7p | 0 | 1 | 1 | 0 | 0 | 1 | 0 |
| 8p | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
| 9p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 10p | 1 | 0 | 0 | 0 | 0 | 0 | 1 |
| 11p | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
FewerMore(busiest cell: 13 emails)
Based on 110 emails received from Mar 16 to Oct 27, 2026. Times in US Eastern. How we collect · When all brands send
How often Proto-col sends
Complete months have run between 10 and 18 emails.
- Busiest month
- Apr 2026, 18
- Quietest month
- Sep 2026, 10
- Busiest day
- Friday, 19
- Quietest day
- Wednesday, 13
About Proto-col
- ESP
- Klaviyo
- Sites
- proto-col.com, proto-col.co.uk, proto-col.es, proto-col.nl
- Tracked since
- Mar 2026
- Emails collected
- 110
- Emails a week
- about 3
- Last sent
- Oct 27, 2026
- Sends from
- hello@
proto-col.com - Subject length
- 38 characters avg
Counts include automated emails such as a welcome series.
Similar sending frequency
| Latest email | Brand | ESP | Website popularity | Emails a week | Busiest day | Last sent | |
|---|---|---|---|---|---|---|---|
 21OVERLAYS21overlays.com.au · Top 1 million sites | Klaviyo | Top 1 million sites | about 3 | Tuesday | Oct 28, 2026 | Klaviyo · about 3 a week · busiest Tuesday · last sent Oct 28, 2026 | |
 360 Cookware360cookware.com · Top 1 million sites | Klaviyo | Top 1 million sites | about 3 | Wednesday | Oct 30, 2026 | Klaviyo · about 3 a week · busiest Wednesday · last sent Oct 30, 2026 | |
| 021 Originals021originals.com | Klaviyo | about 3 | Friday | Oct 30, 2026 | Klaviyo · about 3 a week · busiest Friday · last sent Oct 30, 2026 |
