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Besides gaining reputation with your questions and answers, you receive badges for being especially helpful. Badges appear on your profile page, flair, and your posts.

Question Badges

First bounty you manually award on another person's question
First bounty you manually award on your own question
3 awarded
Ask a well-received question on 5 separate days, and maintain a positive question record
59 awarded
Ask a well-received question on 30 separate days, and maintain a positive question record
8 awarded
Ask a well-received question on 100 separate days, and maintain a positive question record
1 awarded
Question favorited by 25 users
2 awarded
Question favorited by 100 users
First bounty you offer on another person's question
2 awarded
Question score of 10 or more
903 awarded
Question score of 25 or more
177 awarded
Question score of 100 or more
3 awarded
Question with 1,000 views
611 awarded
Question with 2,500 views
280 awarded
Question with 10,000 views
54 awarded
First bounty you offer on your own question
7 awarded
Ask a question and accept an answer
427 awarded
First question with score of 1 or more
654 awarded
Asked a question with zero score, no answers, no comments, and low views for a week

Answer Badges

First to answer and accepted with score of 10 or more
456 awarded
Edit and answer 1 question (both actions within 12 hours, answer score > 0)
29 awarded
Edit and answer 50 questions (both actions within 12 hours, answer score > 0)
Edit and answer 500 questions (both actions within 12 hours, answer score > 0)
Provide non-wiki answers of 15 total score in 20 of top 40 tags
Accepted answer and score of 40 or more
85 awarded
Answer score of 10 or more
1.4k awarded
Answer score of 25 or more
330 awarded
Answer score of 100 or more
9 awarded
Highest scoring answer that outscored an accepted answer with score of more than 10 by more than 2x
21 awarded
Provide an answer of +20 score to a question of -5 score
Answer more than 30 days after a question was asked as first answer scoring 2 or more
72 awarded
Answer a question more than 60 days later with score of 5 or more
130 awarded
Answer your own question with score of 3 or more
74 awarded
Answer a question with score of 1 or more
914 awarded
Zero score accepted answers: more than 5 and 20% of total
Zero score accepted answers: more than 10 and 25% of total

Participation Badges

Complete "About Me" section of user profile
4k awarded
Visit an election during any phase of an active election and have enough reputation to cast a vote
Vote for a candidate in the final phase of an election
Leave 10 comments
298 awarded
Leave 10 comments with score of 5 or more
17 awarded
Visit the site each day for 30 consecutive days. (Days are counted in UTC.)
120 awarded
Visit the site each day for 100 consecutive days. (Days are counted in UTC.)
61 awarded
Earn at least 200 reputation (the daily maximum) in a single day
60 awarded
Earn 200 daily reputation 50 times
1 awarded
Earn 200 daily reputation 150 times
Followed the Area 51 proposal for this site before it entered the commitment phase
97 awarded
Voted 10 times, added 3 posts score > 0, and visited the site on 3 separate days during the private beta
24 awarded
One post with score of 2 on meta
103 awarded
10 posts with score of 2 on meta
9 awarded
Post 10 messages, with 1 or more starred, in chat
15 awarded
Post 10 messages in chat starred by 10 different users
Active member for a year, earning at least 200 reputation
547 awarded

Tag Badges

You must have a total score of 100 in at least 20 non-community wiki answers to achieve this badge.
10 awarded
You must have a total score of 400 in at least 80 non-community wiki answers to achieve this badge.
1 awarded
You must have a total score of 1000 in at least 200 non-community wiki answers to achieve this badge.

Moderation Badges

First flagged post
180 awarded
Raise 80 helpful flags
2 awarded
Raise 500 helpful flags
Vote 300 or more times
47 awarded
First rollback
19 awarded
Served as a pro-tem moderator for at least 1 year or through site graduation
3 awarded
Served as an elected moderator for at least 1 year
First down vote
215 awarded
Complete at least one review task. This badge is awarded once per review type
337 awarded
Complete at least 250 review tasks. This badge is awarded once per review type
5 awarded
Complete at least 1,000 review tasks. This badge is awarded once per review type
Delete own post with score of 3 or higher
8 awarded
First edit
717 awarded
Edit 80 posts
5 awarded
Edit 500 posts (excluding own or deleted posts and tag edits)
Vote on 600 questions and 25% or more of total votes are on questions
6 awarded
Edit first post that was inactive for 6 months
61 awarded
Edit 100 posts that were inactive for 6 months
First retag
70 awarded
Delete own post with score of -3 or lower
5 awarded
Approve or reject 100 suggested edits
6 awarded
Up vote 100 answers on questions where an answer of yours has a positive score
1 awarded
Use 30 votes in a day
46 awarded
First up vote
3.1k awarded
First approved tag synonym
4 awarded
First tag wiki edit
51 awarded
Edit 50 tag wikis
3 awarded
Create a tag used by 50 questions
15 awarded
Use the maximum 40 votes in a day
27 awarded

Other Badges

Visited every section of the FAQ (retired)
Share a link to a question later visited by 25 unique IP addresses
51 awarded
Share a link to a question later visited by 300 unique IP addresses
16 awarded
Share a link to a question later visited by 1000 unique IP addresses
9 awarded
Read the entire tour page
735 awarded