Costcutters uses Klaviyo as their primary email service provider. They're the #614,154 most-visited website overall, per Tranco (a web-popularity measure, not an email one). Their email authentication setup is good (score 80/100).
Authentication signals observed in this brand's emails. SPF, DKIM and DMARC are the standard sender-authentication stack — see the DMARC policy below for whether spoofing is actually blocked or just monitored. One-click unsubscribe meets Google & Yahoo's bulk-sender requirements.
SPF / DKIM / DMARC above reflect the last 3 emails we've observed. DMARC policy is read live from DNS.
DMARC reports sent to regiscorp.com. Policy
p=quarantine means receivers actively block or quarantine spoofed mail.
SPF alignment: all 17 observed emails use a return-path aligned with costcutters.com (send.costcutters.com). SPF authenticates the visible From — supports DMARC directly.
DKIM alignment: all 17 observed emails sign with a domain aligned with costcutters.com (costcutters.com). DKIM authenticates the visible From — supports DMARC directly.
Delivery: fast — 100% of emails in the last 7 days arrive in under 10 seconds (across 4 sends).
Brands often use multiple ESPs (e.g. one for marketing, another for transactional/notifications).
None — only the primary ESP(s) shown aboveESPs we've seen sending email for this brand. Green = confirmed by SPF, sender IP rDNS, or known infra pairing (label shows the source). Grey = observed but not yet confirmed by SPF or PTR.
ESPs this brand has authorized in their SPF record. We confirm them with a green ✓ only after seeing recurring use (3+ emails across 2+ days). Until then they stay here — either we haven't observed any email yet, or we've seen a handful but not enough to call them a regular sender for the brand.
Probed: costcutters.com, send.costcutters.com
Folder distribution across all emails from this brand observed in Gmail inboxes. High inbox % = good deliverability; spam appearances are the headline signal.
| Folder | Count | Share |
|---|---|---|
| inbox | 4 | 25.0% |
| promotions | 12 | 75.0% |
Which ESP's emails are landing where. Sorted by spam % so problem senders surface first. Brands using one ESP for marketing and another for transactional often see very different placement profiles per ESP. Per-ESP folder data only started being captured recently — counts here may be smaller than the total above until backfill catches up.
| ESP | Emails | Placement | Inbox % | Tabs % | Spam % |
|---|---|---|---|---|---|
| Klaviyo | 16 | 25.0% | 75.0% | 0.0% |
Weekly observations per ESP. Brands often run multiple ESPs concurrently — marketing on one, transactional on another — so this chart shows usage rather than switches.
IP addresses costcutters.com has been observed sending from, and where their mail landed in Gmail.
| IP | Hostname | Obs | Placement | Reputation |
|---|---|---|---|---|
| 167.89.80.92 | o1290.shared.klaviyomail.com |
6 | 1 | Check → |
| 167.89.77.234 | o1326.shared.klaviyomail.com |
4 | 3 | Check → |
| 167.89.72.19 | o1278.shared.klaviyomail.com |
3 | — | Check → |
| 149.72.184.220 | o1369.shared.klaviyomail.com |
2 | — | Check → |
| 149.72.222.15 | o1358.shared.klaviyomail.com |
2 | — | Check → |
| Domain | ESPs detected | Delivery (7d) |
|---|---|---|
costcutters.com | Klaviyo 17 |