67Leads › Free tools › Cold email subject line grader
Example: 'FREE Website Offer For Your Business!!! 🚀' grades F (50/100): 3 exclamation marks, it reads like marketing (free, offer). Short, lower-case, specific subject lines like 'question about {{company}}' work best for cold email to local business owners.
Updated 5 Nov 2026. Free, no account.
This is an example. Type your own subject line above.
Result for
FREE Website Offer For Your Business!!! 🚀
F 50/100 grade F
| Length | 6 words, 41 characters |
| Spam words | FREE |
| Marketing markers | free, offer |
| ALL-CAPS words | FREE |
| Exclamation / question marks | 3 / 0 |
| Emoji | 1 |
| Merge fields | none |
| Question or curiosity | no |
A phone inbox shows about the first 35 characters:
Lower case on purpose: a subject line that looks typed by a person gets opened like one. Merge fields match the 67Leads CSV.
question about {{company}} grade{{company}} on google maps gradequick idea for {{company}} gradenew customers at {{company}} grade{{first_name}}, quick question gradelocal business in {{city}} gradeidea for booked jobs grade{{company}}'s google reviews grade{{company}} website grademissed calls in {{city}} gradenoticed {{company}} on the map gradefor the owner of {{company}} grademore new customers? grade{{city}} local businesses gradebooked jobs question gradesaw {{company}} online grade{{first_name}}, missed calls? gradeworth a look, {{first_name}}? grade{{company}} on google grade{{company}} in {{city}} searches gradeThe grade is rule-based and runs on the line you type. It starts at 100 and takes points off for length outside 2 to 6 words or over 45 characters, for phrases from the same 109-phrase list the spam word checker uses, for marketing markers (%, $, free, offer, sale), ALL-CAPS words, Title Case, exclamation marks, emoji, a fake "Re:" on a first email, and for a line with no merge field or no reason to open. A is 90 or more, F is under 60. The rewrites strip what cost points and keep your own words.
The idea lists use the trade names 67Leads carries and the offer angles from the cold email template generator. The angle counts are live from the warehouse.
Tree service companiesRoofing contractorsHVAC contractorsInsulation contractorsPlumbersDentistsChiropractorsMed spasLaw firmsCleaning companiesPest control companiesElectricians
67Leads lists US local businesses by trade and city, with emails read from each company's own website and labelled verified or not. The first 67 leads are free, no card.
Get 67 leads freeTwo to six words, under about 45 characters, lower case, specific to the business, and free of ad words like free, offer or limited time. 'question about {{company}}' beats 'Grow Your Business Today!!!'.
No, and no tool can. Apple's Mail Privacy Protection loads messages on the user's behalf and stops senders from knowing when an email is opened, so open rates are inflated and unreliable (Apple, https://www.apple.com/newsroom/2021/06/apple-advances-its-privacy-leadership-with-ios-15-ipados-15-macos-monterey-and-watchos-8/, checked 4 Nov 2026). Judge a subject line by replies.
No. On a first email it pretends there was an earlier conversation. US law (CAN-SPAM) forbids misleading subject lines, and readers who notice stop trusting the rest.
Usually. Lower case looks like a note from a person; Title Case and capitals look like a newsletter. Keep proper names capitalized if you prefer.
Ones about the business itself: its name, its listing, a job type it does. Pick a trade above for 20 ready lines with merge fields that match the 67Leads CSV.
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All lead lists by tradeHow 67Leads compares67Leads vs Apollo