This doesn't apply for other Cancer-Capricorns and I'm damn sure not about to speak for them; they absolutely fit this description to a T. However, my modified description (culled from various sources) is what that site needs to say for it to actually be accurate for me:

• Success in life is almost guaranteed because of your self-assurance and personal magnetism.
• Cancer-Capricorns seem to just get things easier than others because they are just plain lucky. You have both influence and respect because, no matter what you undertake, you just seem to be a winner. This gets noticed.
• You appear mysterious and you intrigue people because of your Cancerian protective exterior. You do not want to share your inner thoughts so you are guarded about revealing feelings and reactions.
• The Cancer-Capricorn person is not the Cancer who most people think they know. They are not an insecure, timid, introvert that we usually read about. The real shrewd and tenacious self is difficult to spot under your modest and mild mannered exterior. You may seem unprepossessing and even modest, but it's not hard to discern your true inner shrewdness and tenacity. Underneath that cool image of yours is a very intense, forceful, and determined individual.
• You are a very emotional person beyond your exterior. The situation you are dealing with or the person himself or herself determine your response and reaction to them.
• Your shrewdness and perception mean that you are almost always right. You are always plotting your next move because you are so untrusting and suspicious.
• Wrongs are never forgotten and you have a terrific memory.
• Betraying you is not a good idea, because you will take your time and get your revenge. You can be vengeful, vicious and petty.
• You are up for experiencing anything like most competitive people. You can go after pleasure, self-indulgence and sensuality as aggressively as you do you professional enterprises.
• You take risks about whom you can trust and your sense is reliable in most cases.
• Making fun of you is hazardous, because you are quite serious about yourself.
• You, on the other hand, can be cruel, sarcastic and blunt about the weaknesses of others, which you can readily perceive. Honing your sense of humor and tact would be a good idea.
• Gloom and depression are things that you might suffer from, even more than other Cancers.
• You think life is an endless struggle and you are always on guard. * Your insight into people is extraordinarily good because of your experience. This gives you prohibitions and conflicts even though it provides special perceptions for you.
• You do not feel fearful of a future that is not certain like most Cancers. Your goals are very high as the result of your ambitions and desire for recognition.
• Inner firmness of purpose and determination have helped you over the early obstructions that in all likelihood you experienced in your childhood environment. This made you a self- examining and calculating person, especially for a Cancer individual.
• You are a quite serious person and learn things easily. Your strong Capricorn inner nature finds opposition from the gentler Cancer.
• You have a somewhat unique approach to life and you are never happy with external impressions. You approach it with a view towards change and novelty no matter what you do.
• Galileo the astronomer and the writer Ernest Hemingway were both members of your combination, and their work shows the totally different nature of the Cancer-Capricorn perspective.
• Seclusion is something that you desire, but while that may be good in limited amounts, too much can bring about alienation from the world around you. You can accomplish anything after you have learned to make peace with your inner nature.
• Capricorn's realism, organization, and aspirations combined with Cancer's vision and intuition can give you an excellent business sense.
• Early in life, you were most likely somewhat self-conscious and inhibited. As you grew older, you slowly gained more confidence. Your Capricorn Moon provided you with an astute, sensible, and careful viewpoint.
• All working to your advantage in life are intelligence, practicality, and almost psychic intuition. In some way, you know with certainty who is trustworthy and who to avoid completely.
• You have a deep sense of accountability and a strong work ethic because as a child you in all probability shouldered more than your portion of obligations.
• You are a bit too painstaking for your own good.
• You have an inner core of flexibility and determination which enables you to handle adversity in life with calm forbearance and are much more self-directed and tough than your fellow Cancerians.
• By nature you are very shy and reserved. Your conscience is huge, and you believe that any misconduct, real or unreal, must be dealt with. You have an innate sense of justice.
• You find comfort and satisfaction in your work as with all Moon in Capricorn natives.
• Stress and anxiety often plague the Cancer-Capricorn.
• It is critical that you get plenty of relaxation because of your low tolerance for stress. Time away for meditation and introspection is a wise move.
• You generally know which romantic partner is best for you because of your good intuition.
• Your work should not be everything. You are at risk of becoming a workaholic because you are industrious by nature. Outside interests and activities need to be developed.
• You are enormously hard on yourself. You fall into depression when you discover that you cannot hold up the perfectionist standards you set for yourself.
• You have well-established goals and you seldom have to reorganize your thoughts or perspectives.
• You are admired for being well spoken as well as efficient because of your discipline and self-control.
• Emotionally, you try to stay in control to the extent that you may not be aware that everything you say is designed to produce a result. The Capricorn inner self makes a more mature Cancer than most.
• Your mixture makes you cool and calm as well as strong, detached and ambitious. You can talk people into almost anything because of your charm and magnetism.
• You direct yourself toward power and influence because you are aware of your attraction to others and put it to use very well.
• Your personality seems a bit above the fray because you do not reveal the feelings you have under your dynamic personality.
• You do not need to be aggressive in your desire for power because you possess an inborn sense of dignity, which applies your principled moral values.
• In spite of this, you usually get the best of a deal in business. * The spiritual side of life should not be sacrificed because of competition even though that has it proper place.
• The biggest challenge for you is to discover the side of life that has more meaning, because the material portion will take care of itself.
• You will recognize your mistakes later in life when you have time to contemplate them. So do not fail to recognize this facet as early on in life as possible. Sadness and bitterness in old age can result if you do this.
• Overcoming difficulties and barriers with your fortitude and unwillingness to quit, shows that you have a lot of inner fortitude. * You can use your well-developed power of persuasion to bend others to your will because you sense their vulnerabilities.
• You are a master of manipulation. Inside you are numerous personalities moving about trying to be the most influential and recognized.
• Your desire for power is done at the expense of other parts of your being in the name of material possessions.