Owner

letsencrypt

8 indexed repositories · View on GitHub

boulder
An ACME-based certificate authority, written in Go.

Go · 5752 stars
website
Let's Encrypt Website and Documentation

HTML · 909 stars
pebble
A miniature version of Boulder, Pebble is a small RFC 8555 ACME test server not suited for a production certificate authority.

Go · 787 stars
cp-cps
ISRG / Let's Encrypt CP and CPS Documents

Python · 38 stars
spf-flattener

Go · 29 stars
gorepotemplate
A template for starting a new Go project with CI and other standard configuration used at Let's Encrypt/ISRG.

Go · 16 stars
mariadb-sequential-partition-manager-py
Manage MariaDB Partitions based on Autoincrement IDs

Python · 8 stars
sunlight-secretmanager

Go · 0 stars

Beginner friendly Everything

Open All

Navigating to untranslated pages drops user into the English site Open

letsencrypt/website#2196 · 1 assignee · Opened Apr 24, 2026
Require AccountURIPrefix in WFE Open

starter

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

letsencrypt/boulder#8724 · Opened Apr 21, 2026
ACME semantic variances in WFE2 Open

starter

Difficulty 5/5 Over a week Newbie friendliness 30/100

letsencrypt/boulder#8711 · 1 comment · Opened Apr 11, 2026
Remove non-standard ACME fields from WFE2 responses Open

Difficulty 4/5 3-5 days Newbie friendliness 48/100

letsencrypt/boulder#8709 · Opened Apr 11, 2026
sa: make authz2 table cheaper Open

letsencrypt/boulder#8702 · 2 comments · 1 assignee · Opened Apr 7, 2026
Don't fail if table only has one non-empty partition Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

letsencrypt/mariadb-sequential-partition-manager-py#93 · Opened Mar 27, 2026
Consider simplifying subscriber warranties regarding revocation Open

Difficulty 1/5 1-3 hours Newbie friendliness 55/100

letsencrypt/cp-cps#340 · Opened Mar 18, 2026
Consider changing Section 8.6 Communication of results Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

letsencrypt/cp-cps#339 · Opened Mar 18, 2026
Add dns-persist to Section 3.2.2 Open

Difficulty 1/5 Under an hour Newbie friendliness 45/100

letsencrypt/cp-cps#338 · Opened Mar 18, 2026
Add caveat to section 6.1.2 Open

Difficulty 1/5 1-3 hours Newbie friendliness 50/100

letsencrypt/cp-cps#337 · 1 reaction · Opened Mar 18, 2026
Replace "names" with "identifiers" where applicable Open

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

letsencrypt/cp-cps#335 · Opened Mar 18, 2026
ratelimits/wfe: Implement per-endpoint per-IP address rate limits Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

letsencrypt/boulder#8668 · Opened Mar 10, 2026
Non-ARI renewals for IPv6 Identifier not limited to every 34H Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

letsencrypt/boulder#8657 · Opened Mar 5, 2026
Updates for Apple Root Program v2.0 Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

letsencrypt/cp-cps#332 · Opened Mar 3, 2026
Add windows which ARI renewal intervals avoid Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

letsencrypt/boulder#8617 · Opened Feb 3, 2026
caa issue/issuewild parameter tags: mixed-case accounturi/validationmethods treated as absent Open

Difficulty 2/5 1-3 hours Newbie friendliness 52/100

letsencrypt/boulder#8614 · 4 comments · Opened Jan 30, 2026
Add support for the dns-persist-01 challenge type Open

letsencrypt/pebble#533 · 6 comments · 1 assignee · Opened Jan 28, 2026
test: move test.sh flag handling up into t.sh Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

letsencrypt/boulder#8604 · Opened Jan 27, 2026
logging: ensure unit test coverage of all BRs-required audit events Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

letsencrypt/boulder#8575 · Opened Jan 20, 2026
Support issuing CRLs Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

letsencrypt/pebble#531 · 1 comment · Opened Jan 12, 2026
logging: Switch to slog Open

letsencrypt/boulder#8557 · 1 assignee · Opened Jan 12, 2026
go1.26: replace errors.New with fmt.Errorf Open

starter

Difficulty 4/5 3-5 days Newbie friendliness 48/100

letsencrypt/boulder#8543 · 1 comment · Opened Jan 5, 2026
go1.26: Consider using signal.NotifyContext instead of cmd.CatchSignals Open

starter

Difficulty 4/5 3-5 days Newbie friendliness 35/100

letsencrypt/boulder#8542 · Opened Jan 5, 2026
go1.26: remove crypto/rand.Reader argument from all keygen and signing calls Open

starter

Difficulty 3/5 1-2 days Newbie friendliness 68/100

letsencrypt/boulder#8540 · 2 comments · Opened Jan 5, 2026
Host certificate and policy/legal repositories directly from this repo Open

letsencrypt/cp-cps#342 · 5 comments · 1 assignee · Opened Dec 18, 2025
Include new DNS validation methods Open

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

letsencrypt/cp-cps#320 · Opened Dec 18, 2025
improve Section 9.11 Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

letsencrypt/cp-cps#319 · Opened Dec 18, 2025
Add description of DNSSEC validation to 3.2.2 Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

letsencrypt/cp-cps#316 · Opened Dec 17, 2025
Clean up use of "sensitive data" Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

letsencrypt/cp-cps#315 · Opened Dec 17, 2025
Use of "Security Officer" as a defined term Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

letsencrypt/cp-cps#311 · Opened Dec 17, 2025
ratelimits: Consider simplifying Batch and Non-Batch methods into a single variadic method Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

letsencrypt/boulder#8509 · Opened Dec 2, 2025
Export grpc.Checker for compile-time interface checks of *SQLStorageAuthority, *SQLStorageAuthorityRO, and *RegistrationAuthorityImpl Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

letsencrypt/boulder#8471 · Opened Oct 31, 2025
Remove orderToAuthz2 table Open

letsencrypt/boulder#8451 · 1 assignee · Opened Oct 22, 2025
Fully move from pardot-test-srv to salesforce-test-srv Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

letsencrypt/boulder#8410 · 1 comment · Opened Sep 26, 2025
Website rendering of in-line code spans consumes spaces following the span Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

letsencrypt/cp-cps#303 · 1 comment · Opened Sep 24, 2025
GitHub anchor links and Website anchor links are different Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

letsencrypt/cp-cps#300 · 1 comment · 1 reaction · Opened Sep 24, 2025
Ruxyserver Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

letsencrypt/website#2031 · Opened Sep 5, 2025
ceremony: accept path to pkcs11 creds file Open

Difficulty 4/5 3-5 days Newbie friendliness 45/100

letsencrypt/boulder#8377 · 2 comments · Opened Sep 3, 2025
Revamp how we run tests Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

letsencrypt/boulder#8370 · Opened Aug 25, 2025
Move boulder-tools image from dockerhub to github container registry Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

letsencrypt/boulder#8369 · Opened Aug 25, 2025
Update for Ruff lints which are not passing Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

letsencrypt/mariadb-sequential-partition-manager-py#90 · Opened Aug 18, 2025
Tear out TemporallyShardedSerialPrefixes Open

starter

Difficulty 4/5 3-5 days Newbie friendliness 35/100

letsencrypt/boulder#8342 · Opened Aug 12, 2025
build: remove Makefile Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

letsencrypt/boulder#8338 · Opened Aug 12, 2025
Use a Boulder container image as part of integration tests Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

letsencrypt/boulder#8336 · Opened Aug 11, 2025
Produce signed Go container image as part of builds Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

letsencrypt/boulder#8335 · Opened Aug 11, 2025
Config field "name" is deprecated in Sunlight Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

letsencrypt/sunlight-secretmanager#11 · Opened Aug 8, 2025
remove pages from old incidents? Open

letsencrypt/website#1978 · 2 comments · 1 assignee · Opened Aug 1, 2025
Investigate dropping the certificateStatus table Open

letsencrypt/boulder#8322 · 4 comments · 1 assignee · Opened Jul 29, 2025
Add integration test for tls-alpn-01 validation of an IP address Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

letsencrypt/boulder#8289 · Opened Jul 3, 2025
wfe: Add IP address rendering check to prepAuthorizationForDisplay Open

Difficulty 3/5 1-2 days Newbie friendliness 52/100

letsencrypt/boulder#8269 · Opened Jun 24, 2025

Showing the newest 100

This page lists what was indexed most recently. Advanced filter has the whole inventory, narrowed by language, difficulty and how long a task takes.

Open advanced filter

letsencrypt

Showing the newest 100

Get new issues in your inbox