SMS Verification Code Purchase: Tengxun Cloud SMS Verification Code Configuration Tutorial (2026 the latest version)
Whether it's playing games, making websites or developing App, as long as your business involves user registration, login and password retrieval,
SMS verification code
It's just a hurdle that can't be crossed.
SMS verification code purchase
Many novice developers (even veterans) often encounter a lot of troubles when accessing tengxunyun short message (SMS): either because the "signature/template" is not in compliance, it is mercilessly rejected by the auditors, or it is not easy to go online, because they did not do anti-brush, they were brushed off by the black wool party overnight.
In today's article, let's not move the rigid code of official documents, but directly use plain English to put
Full path of Tengxun cloud SMS configuration
and also
Industry's Hardest Anti-Brush Strategy
I'll give you a one-time break.
The first stage: the guide to avoid the pit-how to successfully pass the "signature and template" audit?
The console entrance of tengxunyun SMS is very easy to find (just search for "SMS" directly in the console of official website). After entering, the core preparation work is only two things:
Apply for SMS signature
and
Application SMS Template
.
These two steps can easily be dismissed without experience.
SMS verification code purchase
1. SMS signature (who are you?)
A signature is a word enclosed in parentheses at the beginning of a text message, such
Tencent Technology]
,
XX game]
.
Core avoidance: signatures cannot be written blindly. If you are an enterprise authentication account, the signature must be exactly the same as the company abbreviation, brand name, or registered website/app name on the business license you submitted.
Application Skills: If your App is not yet online, you can first provide a soft copy (software copyright) or a screenshot of the official website of the enterprise as proof materials, and the approval rate will be greatly improved.
2. SMS template (what do you want to send?)
A template is the specific content of a text message. The general template for verification code SMS is generally as follows:
The verification code is {1}. You are registering your account. Please fill it in within {2} minutes. If it is not done by yourself, please ignore this text message.
Core Pit Avoidance: Never appear any words with marketing, promotion or even inducement in the template (such as "register to send gold coins", "click on the link", etc.). The template for registering the verification code must be pure, rigid and functional.
Note that variables: {1} and {2} are dynamic variables that your back-end program fills in with specific numbers (such as 654321 and 5 minutes) when sending.
The second stage: three steps, fast access to the back-end code
When the signature and template become "passed" status, you can start typing code. Tengxun Cloud provides a very complete SDK, supporting Python, Java, Node.js, Go, Go and other languages.
Before writing code, go to the console to fish out these three core parameters:
SecretId and SecretKey: Your Tengxun cloud account key (must not be exposed to the front end, must be written in the back-end environment variable).
SmsSdkAppId: The ID of the SMS application, in
Look in the "Application Management" of the SMS console.
TemplateId: The ID of the SMS template you just approved.
Back-end standard pseudo-code logic:
SMS verification code purchase
Take the simplest sending logic as an example (the underlying logic is the same no matter what language you use):
Plaintext
1. The client sends the user's mobile phone number to the backend API:/api/send_code
2. The back end generates a random 6-digit verification code (for example: 883921)
3. Store the mobile phone number and verification code as a key-value pair in the Redis cache, and set the expiration time to 5 minutes
4. Call the SendSms interface of Tengxun SMS SDK and pass in the mobile phone number, TemplateId number and verification code variables
5. Tengxun Cloud sends a short message, and the back end returns to the client: successfully sent
The third stage: blood and tears lessons-how to thoroughly prevent "SMS bombing and stealing brush"?
If your SMS verification code interface is written as above, you will go online directly. I can assure you that you will cry in a few days.
Black hackers have a special "SMS bomber" script, which will automatically scan the whole network without anti-brush SMS interface, then use your interface as a weapon and frantically send verification codes to the victim's mobile phone. The result is:
When the victim is bombed, the balance of your Tengxunyun account will instantly return to zero. At the same time, your SMS signature will be subject to a large number of complaints, resulting in the account being blocked.
If you want to sleep peacefully, you must build the following four lines of defense at the back end:
First Line of Defense: Time and Frequency Limits (Redis-based)
This is the most basic threshold:
Purchase with registration verification code
Single mobile phone number limit: the same mobile phone number can only send one within 1 minute, no more than 5 within 1 hour, and no more than 10 within 1 day.
Single IP limit: the total number of IP addresses sent by the same public network cannot exceed 30 within 24 hours (to prevent hackers from brushing you with an IP crazy change phone number).
The second line of defense: graphical verification code/behavioral challenge (extremely important)
Never let users directly click "send verification code" to trigger the back-end interface.
Before clicking send, a puzzle verification code, rotating picture verification code, or slider verification code must pop up. Only when the user completes this "man-machine verification" at the front end and the back end obtains the Token with successful verification, can the Tengxun cloud SMS interface be called. This step can directly brush off 99% of the automated hacker scripts.
The third line of defense: tengxunyun's own "total sending limit"
Not afraid of 10,000, afraid of one thousand (for example, your code has written a Bug, or the graphic verification code has been cracked by hackers with AI).
Purchase with registration verification code
Practical operation path: login to tengxun SMS console-> enter [application management] -> [settings] -> [limit setting].
Configuration suggestion: it is suggested to set a hard dead line for the "upper limit of domestic SMS sending on that day" (for example, your daily day
If you use 1000 at most, you will set the upper limit to 2000). Once this amount is exceeded, Tengxunyun will automatically cut off the transmission. Although this will cause normal users following the day to not receive the verification code, it can lock up your loss limit and keep your wallet.
The fourth stage: common error reporting and investigation
After going online, if the user cannot receive the short message or the background reports an error, check against this list and 90% can be solved:
Error reporting LimitExceeded.PhoneNumberDailyLimit: This means that the verification code received by this mobile phone number today has reached the upper limit (triggering the default one-day maximum limit of Tengxun Cloud).
Error reporting FailedOperation.SignatureIncorrectOrUnapproved: signature error or not approved. Please check whether the signature text filled in your code is exactly the same as the approved word in the console (including spaces).
The user did not receive the response, but the background showed "successful sending": let the user check the intercepted SMS box of the mobile phone (especially Android mobile phones, which often misjudge SMS with verification code and brackets as spam SMS). If it is blocked (returned) by the operator, you can enter the mobile phone number in the "sending record inquiry" of tengxunyun console, and you can see the specific operator receipt error code.
Summary
The stability and arrival rate of Tencent cloud SMS service belong to the first echelon in the industry, and it is not difficult to access it.
SMS verification code purchase
However, as developers, we should not only look at the "normal process", but also spend 80% of our energy to build it.
Safe anti-brush wall
. Add the graphical verification code, do a good job in Redis frequency control, and block the daily limit of tengxunyun-only by doing these three points can your verification code system be truly qualified, and only in the stormy open environment of the internet can you serve real users well and keep the company's assets safe.
